View 5002C-CGT_694193.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

avpro ? 5002c dual scart a/v switch october 2000 description the avpro ? 5002c device is an audio/video switching ic that supports an input/output port, an input only port, and an output only port. the device includes multiplexers that allow the inputs to be routed to the outputs in various configurations. additional outputs are provided to drive an external rf modulator. the video outputs of the multiplexers are buffered to drive 137-ohm loads. the audio outputs are buffered to provide 2 vrms output into 600 ohms. the 5002c has features optimized for canal+ satellite receiver applications, but it can also be used in other applications that require control of multiple audio and video sources. features two scart connections (auxiliary, tv) video section - integrated output drivers - rgb, svhs, composite outputs - programmable rgb gain audio section - dual mode volume control 0 or 6 db gains, plus 0 to -31 db attenuations - programmable gain on dac input channels - ground based outputs (no ac coupling caps) serial port control of switching i 2 c bus 64-lead lqfp package block diagram aux_lin rin lin aux_rin aux_rout aux_lout sclk sdata enc_b enc_g enc_r aux_ycout aux_b aux_g aux_yc tv_b tv_g tv_r tv_ycout eblank ablank blank gn d enc_yc do_1 do_0 aux_cout mod_mono aux_r mod_yc +5 v d c rbias vref support circuits tgen -5 v d c enc_c enc_y tv_fnc -5 v d c + 12vdc rout lout tv_rout tv_lout aux_mono +5 v d c +5 v d c +5 v d c -5 v d c -5 v d c mux mux serial port gn d gn d gn d volume control other i/o aux_cin aux_fnc tv_rin tv_lin tv_ycin enc2_c enc2_y tdk semiconduct or corp . ?
avpro ? 5002c dual scart a/v switch 2 functional description the 5002c is an audio/video switching device. the device integrates both audio and video drivers so that it can directly drive the scart interface. the use of a -5 volt supply eliminates the need for ac coupling capacitors on the audio outputs and the scart audio inputs. all programmable functions of the device are controlled through a standard i 2 c serial interface and a set of internal registers. the device will interface to an external video encoder that provides six video outputs. in addition, the 5002c includes two programmable digital outputs and provides inputs for the tv scart audio/video. scart video switching the device is designed to accept video signals from an auxiliary scart connector, tv scart connector, and an external video encoder/dac device. the devices include a set of analog multiplexers that receive video signals from these sources and allow routing of the signals to the various video outputs. the video output drivers have a nominal gain of 2.0 v/v to allow for a series resistance of 62 ohms prior to the 75 ohm termination. a block diagram of the video switching function is provided in figure 1. details of the register settings are provided in the section titled ?serial port register tables?. figure 1: 5002c video switching block diagram enc_b enc_g enc_r aux_ycout aux_b aux_g aux_yc tv_b tv_g tv_r tv_ycout eblank ablank blank enc_yc aux_cout aux_r mod_yc enc_c enc_y tv_fnc mux vgen aux_fnc comparator 0v 2v mux mux mux mux mux mux mux aux_cin tv_ycin gain mux enc2_y enc2_c
avpro ? 5002c dual scart a/v switch 3 tv rgb outputs the device accepts rgb video signals from two sources. the aux_r , aux_g , aux_b input pins are typically connected to the auxiliary scart connector. the enc_r , enc_g , enc_b input pins are connected to the rgb outputs of an external video encoder device. these outputs are used as a video source for the tv scart pins tv_r , tv_g , and tv_b . the rgb video source is selected by setting the lower three (3) bits of serial port register 1. when these bits are set to xxxxxx00, the rgb source will be the encoder. when these bits are set to xxxxxx01, the source will be the auxiliary port. the tv rgb outputs can be muted independently from the tv composite outputs. setting bit 6 of register 1 low (0) will allow normal operation. setting bit 6 high (1) will set the tv rgb outputs to the blank level. rgb gain: the gain of the rgb outputs can be adjusted to one of four different levels. bits 4 and 5 in register 2 set the gain of the rgb output amplifiers according to the following table: bit 5 bit 4 rgb amplifier gain 0 0 1 1 0 1 0 1 gain = 2.0 v/v = a 0 gain = a 0 - 10% gain = a 0 - 20% gain = a 0 - 30% dc restore: the device will generate a dc restore level on each video output based on timing referenced to a horizontal sync pulse. when the sync pulse is detected, the dc restore circuit will act to position the blank level to 0.6 v at the respective video output load. the device can be programmed to look for the horizontal sync pulse on all of the rgb input pins or on the associated composite video input pin ( aux_yc for the auxiliary port or enc_yc for the external encoder). bit 7 of register 1 determines the horizontal sync source. at power-up, this bit defaults to a low (0) state which programs the device to look for a sync detect on the rgb input signals. in this mode, the device can detect a horizontal sync on any of the three rgb input signals. when bit 7 is set to a high (1) state, the device will look for a sync detect from the signal on either the aux_yc or enc_yc pin depending on which source is selected. blanking : the signal on the blank output pin is determined by the state of two msbs in register 2 according to the following table: bit 7 bit 6 blank source 0 0 1 1 0 1 0 1 blank = ablank blank = eblank blank = 0v blank = 4v @ ic output pin the user must insure that the source of the blank output is the same as the source for the rgb outputs, i.e. ablank is selected when the auxiliary rgb is active and eblank is selected when the encoder rgb is active. tv composite output the device provides inputs for two composite video sources that can be switched to the tv scart composite video pin, tv_ycout . the aux_yc input pin is typically connected to the ?video in? pin on the auxiliary scart connector. the enc_yc input pin is typically connected to the ?yc? or ?cvbs? output from the external video encoder device. selection of the video source for the tv composite output is accomplished when the rgb video source is selected (see the register tables). tv svhs output mode the device supports svhs video format. the svhs mode is selected for the tv scart using the lower three (3) bits of register 1. when the svhs mode is selected, the tv_ycout pin will provide the luminance signal output from the selected source. the chroma output will be provided on the tv_r pin. the video source for svhs mode can be either the auxiliary port or the encoder port. when the auxiliary port is selected as the video source, the video on aux_r will be provided at the tv_r output pin and the aux_yc video will be provided at the tv_ycout pin. the device will support svhs mode for three encoder interface formats. the first encoder interface format accepts chroma signals on the enc_c pin and luma signals on the enc_y pin. this is designated "svhs, enc 1" mode. the second format will receive chroma information on the enc_b pin and luma information on enc_g . this format is designated "svhs, enc 2". the third format will receive chroma information from the enc_r pin and luma information from the enc_g pin. this mode is designated ?svhs, enc 3?. when the svhs mode is selected, the dc restore on the tv_r pin will average to approximately 1.8 vdc at the output pin. the dc restore circuit will act to position the blank level to 0.6 v at the tv_ycout
avpro ? 5002c dual scart a/v switch 4 video output load. the tv_g and tv_b outputs will be set to 0 vdc when the svhs mode is active. rf modulator output the device provides an output, mod_yc , to drive an external rf modulator. the mod_yc output is a unity gain amplifier designed to drive a 1k load or higher. when the device is operating in the rgb mode, the signal on the mod_yc output will follow the same source as the rgb and tv_ycout outputs. when the device is in the svhs mode, the mod_yc output can be driven by several sources depending on the svhs video source. these various options are detailed in the serial port register table. one case that requires additional detail is the auxiliary svhs mode. in the svhs mode, the aux_yc video input will only provide luma information. composite video for the modulator output must be generated by summing this luma information with chroma information from the auxiliary port. the input pin labeled aux_cin is used for this purpose. the aux_cin input pin is ac coupled to the same source that provides the input signal to aux_r . an internal summing node combines the video signal on aux_cin (chroma) with the video signal on aux_yc (luma) to generate a composite video signal. in the auxiliary svhs mode, this signal is provided at the mod_yc pin. tv composite video mute the tv composite video outputs can be muted by programming the lower three (3) bits in register 1. the power-up default condition is xxxxx111, which sets the tv composite video outputs to 0 vdc and switches the tv audio outputs to aux_ lin/ aux_rin . setting these bits to xxxxx110 will also mute the tv composite video outputs and switch the tv audio outputs to lin/ rin . auxiliary composite output the auxiliary port includes a composite video output pin ( aux_ycout ) that is typically connected to the ?video out? pin on an auxiliary scart connector. bits 3-5 in register 1 determine the source for the aux_ycout pin. when these bits are set to xx000xxx, the video source will be the enc_b input. when these bits are set to xx001xxx, the video source will be the enc_yc input. when these bits are set to xx010xxx, the video source will be the tv_ycin input. auxiliary svhs output mode in the svhs mode, pin 15 on the auxiliary scart connector provides chroma information. to support this, the auxiliary port on the 5002c includes a chroma input pin ( aux_cin ) that is externally ac coupled to pin 15 on the auxiliary scart connector. the device also includes an output pin ( aux_cout ) that provides a chroma output to pin 15 (red) on the auxiliary scart connector. when connected with the aux_r and aux_cin pins, this forms a bi- directional port as shown in the following diagram: bi-directional pin circuit using this configuration, the device will support svhs mode for four encoder interface formats. the first encoder interface format will receive chroma information from the enc_c pin and luma information from the enc_y pin. this format is designated ?svhs, enc 1?. the second format will receive chroma information on the enc_b input and luma information on enc_g . this format is designated "svhs, enc 2". the third format will receive chroma information from the enc_r pin and luma information from the enc_g pin. this mode is designated ?svhs, enc 3? on the serial port register table. for these three modes, audio will come from the lin/ rin inputs. the fourth format is designated "svhs enc 4". chroma information is received on the enc2_c input pin and the luma is received on the enc2_y input pin. for this mode only, audio will come from the tv_lin/ tv_rin inputs. when the svhs mode is selected, the dc restore on the aux_cout pin will average to approximately 0.9 vdc at the video output load. the dc restore on the aux_ycout pin will set the blank level to 1.2 v at the ic pin or approximately 0.6 v across the video output load. mux aux_r aux_cout aux_cin 62 auxiliary scart pin 15 mux mux
avpro ? 5002c dual scart a/v switch 5 auxiliary video mute all auxiliary video outputs can be simultaneously disabled by programming bits 3-5 in register 1. the power-up default condition is xx111xxx, which sets all auxiliary video outputs to 0 vdc and switches the auxiliary audio outputs to lin/ rin . function switching the device provides functions switching pins for both the auxiliary ( aux_fnc ) and tv ( tv_fnc ) scart ports. both of these pins are bi-directional. the direction of the pins is determined by setting bits in register 2 according to the following table: bits aux_fnc tv_fnc xxxx 00 xx output output xxxx01xx output input xxxx10xx input output xxxx11xx passthru i/o passthru o/i for the case where register 2 is set to xxxx11xx, the input signal on the aux_fnc pin is passed directly through to the tv_fnc pin as an output, or vice versa. this mode is useful when the rest of the system powers down and all signals from the auxiliary port are passed directly through to the tv port, or vice versa. when a function pin is set as an input, the voltage on that pin is applied to an internal comparitor. the comparitor senses the voltage on the input pin and sets the two (2) lsbs in the read register according to the following table: input voltage bits function < 4.0 v xxxxxx00 normal tv 4.0 to 8.0v xxxxxx01 16:9 aspect >8.0 v xxxxxx10 peritelevision when a function pin is set as an output, the output level for the pin is determined by the state of the two lsbs register 2, according to the following table: bits output voltage function xxxxxx 00 ~0 v normal tv xxxxxx01 ~6 v 16:9 aspect xxxxxx10 ~ 11 v peritelevision xxxxxx11 ~ 11 v peritelevision note that both the aux_fnc pin and the tv_fnc pin can be set as outputs simultaneously, however they will have the same output voltage. the function output circuit includes short circuit protection. when a function pin is in the 6v or 11v output mode, if the scart connection is shorted to ground, then the output is disabled. likewise, when a function pin is in the 0v output mode, if the scart connection is connected to a voltage source, then the output is disabled. the load for the function outputs is designed to be 10k or higher. figure 2: 5002c audio switching block diagram aux_rin aux_lout mux aux_rout aux_mono mux mux mux aux_lin a b b c c a: dac input gain (0, 6, 9 or 11.6 db) b: volume control gain (0 or 6 db) c: volume control attentuation (0 to -31 db in -1 db steps) a lin rin mux mux tv_rin tv_lin lout tv_lout mux mux mux mux tv_rout rout mux mux mod_mono
avpro ? 5002c dual scart a/v switch 6 scart audio switching the audio inputs are considered to be associated with the respective video inputs. as a result, the video selection determines which audio signals will be switched to a given scart output. refer to the serial port register table for more information. also see the audio switching block diagram shown in figure 2. the 5002c provides inputs for the auxiliary audio source ( aux_lin / aux_rin ), a stereo dac associated with the video encoder inputs ( lin / rin ), and inputs from the tv scart ( tv_lin/ tv_rin ). tv audio operation the audio source for the tv port is selected in concert with the video source using the three (3) lsbs of register 1. the selected audio signals are input to internal multiplexers that allow the user to select between mono and stereo output options. bits 4 and 5 of register 3 control the stereo/mono selection according to the following table: bit 1 bit 0 tv left source tv right source 0 0 left input right input 0 1 left + right left + right 1 0 left input left input 1 1 right input right input at power-up, these bits default to 00 putting the device in the stereo mode. volume control: the left and right tv audio channels can be selected to pass through volume control circuits. each volume control circuit is formed by a serially connected amplifier and attenuator pair. the amplifier is programmed by register 4, bit 2 ( ?0? for 0 db and ?1? for 6 db gains ). the attenuator is programmed by the lower 6 bits of register 0 ( ?xx000000? for 0 db and ?xx111111? for ?63 db attenuations, in ?1 db steps ). only the lower 5 bits are guaranteed for accuracy ( 0 to ?31 db ). dac input gain ( lin/ rin ): to support audio dacs that have a limited output range, the 5002c provides programmable gain amplifiers on the lin and rin inputs. the gain is set by bits 2 and 3 of register 3, according to the following table: bit 3 bit 2 gain 0 0 1 1 0 1 0 1 gain = 0 db gain = 6 db gain = 9 db gain = 11.6 db tv scart audio outputs: the first pair of signals is labeled tv_lout and tv_rout on the block diagram. tv_lout and tv_rout are typically used to drive the tv scart audio pins. these outputs also have an internal multiplexer that allows the user to select tv audio either before or after the internal volume control function. when bit 0 in register 4 is set low (0), the volume control is used. when this bit is set high (1), the volume control is bypassed. the power-up default state is volume control active. tv audio line outputs: the second pair of signals is labeled lout and rout on the block diagram. lout and rout are standard line outputs. the lout / rout outputs have an internal multiplexer that allows the user to select tv audio either before or after the internal volume control function. when bit 1 in register 4 is set low (0), the volume control is used. when this bit is set high (1), the volume control is bypassed. the power-up default state is volume control active. in addition, the audio inputs from the tv scart connector ( tv_lin/ tv_rin ) can be switched to the line outputs. this is controlled by bit- 3 of register 4. setting this bit low (0) is the normal operation where the line outputs follow the tv scart outputs. setting this bit high (1) will switch the line outputs to the audio source on the tv_lin/ tv_rin inputs. rf mono output: the tv_lout and tv_rout signals are also summed internally to generate a mono audio signal for an external rf modulator. this output is labeled mod_mono . the internal summing circuit is after the volume control mux so the audio control on this output will be the same as that selected for the tv_lout and tv_rout outputs. tv audio mute: a mute function is provided for all tv audio outputs. the mute function is controlled by setting bit 6 in register 0. when this bit is set to a high state (1), all tv audio outputs are muted. this will be the default condition at power-up. when the bit is set to a low state (0), the audio path will be in normal operating mode. this bit can be set independent of the volume control such that the outputs can be muted before any change in volume, or any switching of audio sources.
avpro ? 5002c dual scart a/v switch 7 auxiliary audio operation the auxiliary port includes stereo audio outputs for a scart connector ( aux_lout , aux_rout ) and a mono audio output ( aux_mono ). these outputs can choose between the lin / rin input pins or the tv_lin/ tv_rin input pins. the audio inputs are switched in concert with the associated video inputs according to bits 3-5 in register 1. internal multiplexers allow the aux_lout and aux_rout outputs to be configured into either stereo or mono audio outputs. the two msbs of register 3 control the stereo/mono selection according to the following table: bit 1 bit 0 aux_lout source aux_rout source 0 0 lin rin 0 1 lin+rin lin+rin 1 0 lin lin 1 1 rin rin at power-up, these bits default to 00 putting the device in the stereo mode. the aux_mono output is generated through an internal summing node that combines the signals of the aux_lout and aux_rout outputs. all three auxiliary audio outputs can be muted by setting the msb in register 0. this bit is set high (1) at power- up causing the outputs to be muted. setting this bit low (0) enables all auxiliary audio outputs. digital outputs the 5002c provides two programmable digital outputs, do_0 and do_1 . these pins are general purpose outputs programmed by setting bit 0 and 1 in register 3. setting the register bits to 0 puts these outputs in the logic low state. setting the register bits to 1 puts the outputs in the logic high state. internal pull-up resistors (approximately 30k) are included on these pins. serial port definition internal functions of the device are monitored and controlled by a standard inter-ic (i 2 c )bus. the serial port operates in a slave mode only and can be written to or read from. the device uses 7-bit addressing, and does not support 10-bit addressing mode. the write register data is sent sequentially, such that if register 4 is to be programmed, then register 0, 1, 2, 3 and 4 need to be sent. if only register 2 needs to be programmed, then only register 0, 1 and 2 data needs to be sent. it will support standard and fast bus speed. the default address of the device is 1001000x. the 5002c includes a read register in which the upper four bits identify the specific chip within the avpro ? family. this allows a single application platform and software to work with a wide variety of avpro ? chips. the id code for the 5002c is 0001. data transfers a data transfer starts when the sdata pin is driven from high to low by the bus master while the sclk pin is high. on the following eight clock cycles, the device receives the data on the sdata pin and decodes that data to determine if a valid address has been received. the first seven bits of information are the address with the eighth bit indicating whether the cycle is a read (bit is high) or a write (bit is low). if the address is valid for this device, on the falling sclk edge of the eighth bit of data, the device will drive the sdata pin low and hold it low until the next rising edge of the sclk pin to acknowledge the address transfer. the device will continue to transmit or receive data until the bus master has issued a stop by driving the sdata pin from low to high while the sclk pin is held high write operation: when the read/write bit (lsb) is low and a valid address is decoded, the device will receive data from the sdata pin. the device will continue to latch data into the registers until a stop condition is detected. the device generates an acknowledge after each byte of data written. read operation: when the read/write bit (lsb) is high and a valid address is decoded, the device will transmit the data from the internal register on the following eight sclk cycles. following the transfer of the register data and the acknowledge from the master, the device will release the data bus. reset: at power-up the serial port defaults to the states indicated in boldface type. the device also responds to the system level reset that is transmitted through the serial port. when the master sends the address 00000000 followed by the data 00000110, the device resets to the default condition. the device also generates an acknowledge.
avpro ? 5002c dual scart a/v switch 8 serial port register tables read register device address = 10010001 function bits description function control input xxxxxx00 xxxxxx01 xxxxxx10 tv_fnc or aux_fnc pin level =level 0 .~0v tv_fnc or aux_fnc pin level =level 1a ~6.0v tv_fnc or aux_fnc pin level = level 1b ~12v tv_ycout video sync xxxxx0xx xxxxx1xx tv ycout: no sync pulse present tv ycout: sync pulse present aux_ycout video sync xxxx0xxx xxxx1xxx aux ycout: no sync pulse present aux ycout: sync pulse present device id code 0001xxxx this code identifies the device type as the 5002c write registers : device address = 10010000 ( bold indicates default setting) register 0: audio control register a function bits description volume control attenuation for tv, line or mod_mono audio xx 000000 xx011111 xx100000 xx111111 audio volume = maximum (0 db) audio volume = minimum (-31 db attenuation) extended tv audio volume control range. range is approximately -32 db to -63 db. extended range is not guaranteed linear. tv audio mute x0xxxxxx x 1 xxxxxx tv audio ( tv_lout/ tv_rout, lout/rout, mod_mono ) output = normal audio output tv audio ( tv_lout/ tv_rout, lout/rout, mod_mono ) output = muted aux audio mute 0xxxxxxx 1 xxxxxxx aux audio ( aux_lout/ aux_rout ) output = normal audio output aux audio ( aux_lout/ aux_rout ) output = muted
avpro ? 5002c dual scart a/v switch 9 register 1: audio/video control register; audio/video source select bits tv a/v source bits tv_r tv_g tv_b tv_yc mod_yc l,rout rgb/yc, encoder rgb/yc, auxiliary svhs, enc 1 svhs, enc 2 svhs, enc 3 svhs, aux 1 tv mute tv mute xxxxx000 xxxxx001 xxxxx010 xxxxx011 xxxxx100 xxxxx101 xxxxx110 xxxxx 111 enc_r aux_r enc_c enc_b enc_r aux_r enc_r aux_r enc_g aux_g 0v 0v 0v 0v enc_g aux_g enc_b aux_b 0v 0v 0v 0v enc_b aux_b enc_yc aux_yc enc_y enc_g enc_g aux_yc 0v 0v enc_yc aux_yc enc_yc enc_yc enc_b auxyc+auxcin 0v 0v lin, rin auxlin,rin lin, rin lin, rin lin, rin auxl,rin lin, rin auxl,rin aux a/v source bits aux_cout aux_ycout aux_lout, rout composite, enc 1 composite, enc 2 composite, tv svhs, enc 1 svhs, enc 2 svhs, enc 3 svhs, enc 4 aux mute xx000xxx xx001xxx xx010xxx xx011xxx xx100xxx xx101xxx xx110xxx xx 111 xxx 0v 0v 0v enc_c enc_b enc_r enc2_c 0v enc_b enc_yc tv_ycin enc_y enc_g enc_g enc2_y 0v lin, rin lin, rin tv_lin, tv_rin lin, rin lin, rin lin, rin tv_lin, tv_rin lin, rin function bits description tv rgb mute x 0 xxxxxx x1xxxxxx tv rgb outputs are active tv rgb outputs are mute (blank level) rgb sync source 0 xxxxxxx 1xxxxxxx rgb sync /dc restore source = rgb rgb sync /dc restore source = tv_yc register 2: video control register; video function bits function bits description function control output voltage xxxxxx 00 xxxxxx01 xxxxxx10 xxxxxx11 level 0; normal tv output (function voltage = 0v) level 1a; 16:9 aspect ratio (function voltage = 6v) level 1b; peritelevision output mode (function voltage = 11v) level 1b; peritelevision output mode (function voltage = 11v) function pin control* xxxx00xx xxxx01xx xxxx10xx xxxx11xx aux_fnc pin = output, tv_fnc pin = output aux_fnc pin = output, tv_fnc pin = input aux_fnc pin = input, tv_fnc pin = output signals will pass through from aux_fnc to tv_fnc or vice versa. aux function pin control* xxxx 0 xxx xxxx1xxx aux_fnc pin = output pin. output is defined by lsbs of this register aux_fnc pin = input pin. the voltage applied to this pin sets the state of the two lsbs of the read register. see the note below* rgb gain control xx 00 xxxx xx01xxxx xx10xxxx xx11xxxx rgb output amplifier gain = normal rgb output amplifiers attenuated by 10% rgb output amplifiers attenuated by 20% rgb output amplifiers attenuated by 30% blank output selection 00 xxxxxx 01xxxxxx 10xxxxxx 11xxxxxx blank = ablank blank = eblank blank = 0v blank = 4v @ ic output pin
avpro ? 5002c dual scart a/v switch 10 * function pin voltages: (i) in output mode, are defined by the two lsb of register 2, (ii) in input mode, set the state of the two lsb of the read register. digital read is not meaningful in the pass-through mode ( xxxx11xx ). register 3: audio and general purpose control register b function bits description do_0 output control xxxxxxx 0 xxxxxxx1 do_0 output = 0 (low) do_0 output = 1 (high) do_1 output control xxxxxx 0 x xxxxxx1x do_1 output = 0 (low) do_1 output = 1 (high) lin/ rin gain control xxxx 00 xx xxxx01xx xxxx10xx xxxx11xx input amplifier gain set at 0 db input amplifier gain set at 6 db input amplifier gain set at 9 db input amplifier gain set at 11.6 db tv stereo/mono control xx 00 xxxx xx01xxxx xx10xxxx xx11xxxx tv audio mode: stereo tv audio mode: mono (sum l+r) on both tv_lout and tv_rout tv audio mode: l channel on both tv_lout and tv_rout tv audio mode: r channel on both tv_lout and tv_rout aux stereo/mono control 00 xxxxxx 01xxxxxx 10xxxxxx 11xxxxxx aux audio mode: stereo aux audio mode: mono (sum l+r) on both aux_lout and aux_rout aux audio mode: l channel on both aux_lout and aux_rout aux audio mode: r channel on both aux_lout and aux_rout register 4: audio control register c function bits description tv volume control select 1 xxxxxxx 0 xxxxxxx1 volume control active on tv_lout, tv_rout; mod_mono tv_lout, tv_rout; mod_mono bypass the volume control tv volume control select 2 xxxxxx 0 x xxxxxx 1 x volume control active on lout, rout lout, rout bypass the volume control enable 6db gain xxxxx0xx xxxxx1xx 0 db of additional gain added to volume control 6 db additional gain added to volume control line out source xxxx0xxx xxxx 1 xxx audio on lout/rout will be the same as the tv_lout/ tv_rout audio on lout/rout will be from the tv_lin/ tv_rin inputs not used 0000 xxxx reserved, set to 0 for normal operation
avpro ? 5002c dual scart a/v switch 11 scart switching table input pins output pin aux_r: red input from aux port enc_r: red input from enc port enc_b: optional chroma input from enc port enc_c: chroma input from enc port tv_r: red video output to tv or svhs chroma output to tv port aux_g: green input from aux port enc_g: green input from enc port tv_g: green video output to tv port aux_b: blue input from aux scart enc_b: blue input from enc port tv_b: blue video output to tv port ablank: blanking input from aux port eblank: blanking input from enc port blank: tv blanking output for rgb (also can have internal 0v or 4v produced at this pin) aux_yc: composite input from aux port enc_yc: composite input from enc port enc_y: luma input from enc port enc_g: optional luma input from enc port tv_ycout: composite video, rgb sync, or luma output to tv port aux_yc: composite input from aux port enc_yc: composite input from enc port enc_b: optional composite input from enc port aux_cin/ aux_yc: sum of chroma and luma mod_yc: follows tv_ycout output. composite (or luma sum with chroma) output to rf modulator enc_c: chroma input from enc port enc_r: optional chroma input from enc port enc_b: optional chroma input from enc port enc2_c: encoder 2 chroma input aux_cout: chroma output to auxiliary port enc_yc: composite input from enc port enc_b: optional composite input from enc port enc_g: optional luma input from enc port enc_y: luma input from enc port tv_ycin: composite input from tv scart enc2_y: encoder 2 luma input aux_ycout: composite video output to auxiliary port aux_lin: left audio input from aux port lin: left audio input from audio dac tv_lin: left audio input from tv scart lout: left audio output to rca jack aux_lin: left audio input from aux port lin: left audio input from audio dac tv_lout: left audio output to tv port lin: left audio input from audio dac tv_lin: left input from tv scart aux_lout: left audio output to auxiliary port aux_rin: right audio input from aux port rin: right audio input from audio dac tv_rin: right audio input from tv scart rout: right audio output to rca jack aux_rin: right audio input from aux port rin: right audio input from audio dac tv_rout: right audio output to tv port rin: right audio input from audio dac tv_rin: right input from tv scart aux_rout: right audio output to auxiliary port
avpro ? 5002c dual scart a/v switch 12 pin descriptions (pins marked n/c should be left unconnected during normal use) name type description analog pins ablank i auxiliary blanking input: in a typical system, this pin is connected to the rgb status pin (pin 16) from the auxiliary scart connector. aux_r i auxiliary red input: in a typical system, this pin is connected to the red input pin (pin 15) of the auxiliary scart connector. this input can be selected as the signal source for the tv_r output pin. aux_g i auxiliary green input: in a typical system, this pin is connected to the green input pin (pin 11) of the auxiliary scart connector. this input can be selected as the signal source for the tv_g output pin. aux_b i auxiliary blue input: in a typical system, this pin is connected to the blue input pin (pin 7) of the auxiliary scart connector. this input can be selected as the signal source for the tv_b output pin. aux_fnc i/o auxiliary function pin: this is a bi-directional pin. as an input, it digitizes the analog voltage on the auxiliary scart function pin. as an output, it puts out one of three voltage levels to the auxiliary scart function pin. aux_cin i auxiliary chroma input: in a typical application, this pin is ac coupled to the red input line from the auxiliary scart connector. when the svhs mode is selected from the auxiliary scart video source, this pin is internally summed to the aux_yc input to generated a composite video signal for the mod_yc output. aux_yc i auxiliary video input: in a typical system, this pin is connected to the composite video input pin (pin 20) of the auxiliary scart connector. this input can be selected as the signal source for the tv_ycout . aux_lin i auxiliary left audio input : in a typical system, this pin is connected to the l audio output pin (pin 3) of the auxiliary scart connector. this input can be selected as the signal source for the tv_lout . aux_rin i auxiliary right audio input : in a typical system, this pin is connected to the r audio output pin (pin 1) of the auxiliary scart connector. this input can be selected as the signal source for the tv_rout . eblank i encoder blanking input : in a typical system, this pin is connected to the blanking signal from the external video encoder device. enc_r i encoder red input: in a typical system, this pin is connected to the red output pin from the external video encoder device. this input can be selected as the signal source for the tv_r output pin. enc_g i encoder green input: in a typical system, this pin is connected to the green output pin from the external video encoder device. this input can be selected as the signal source for the tv_g output pin. enc_b i encoder blue input: in a typical system, this pin is connected to the blue output pin from the external video encoder device. this input can be selected as the signal source for the tv_b output pin.
avpro ? 5002c dual scart a/v switch 13 pin descriptions (continued) name type description enc_yc i encoder video input: in a typical system, this pin is connected to the composite video output pin from the external video encoder device. this input can be selected as the signal source for the aux_ycout , tv_ycout and/or vcr_ycout pins. enc_y i encoder luma input: in a typical system, this pin is connected to the composite video output pin from the external video encoder device. in svhs mode, this input can be selected as the signal source for the tv_ycout pin and/or the aux_ycout pin. enc2_y i encoder 2 luma input: in a typical system, this pin is used as an alternate source for s- video luma information to a vcr when osd information is not desired. this input can be selected as the signal source for the aux_ycout pin. enc_c i encoder chroma input: in a typical system, this pin is connected to the tv_r output pin from the external video encoder device. in the svhs mode, this input can be selected as the signal source for the tv_r pin and/or the aux_cout output pin. enc2_c i encoder 2 chroma input: in a typical system, this pin is used as an alternate source for s-video chroma information to a vcr when osd information is not desired. this input can be selected as the signal source for the aux_cout output pin. lin i left audio input : in a typical system, this pin is connected to the left audio output pin of the external audio dac. this input can be selected as the signal source for the tv_lout and/or aux_lout pins. rin i right audio input : in a typical system, this pin is connected to the right audio output pin of the external audio dac. this input can be selected as the signal source for the tv_rout and/or aux_rout pins. tv_ycin i tv composite video input: this pin accepts composite video from the tv scart. this pin can be selected as the source for the aux_ycout pin. tv_lin i tv left audio input: this pin accepts audio from the tv scart. this pin can be selected as the source for the aux_lout audio output and the lout audio output. tv_rin i tv right audio input: this pin accepts audio from the tv scart. this pin can be selected as the source for the aux_rout audio output and the rout audio output. aux_ycout o auxiliary video output : this pin is the composite video output to the auxiliary scart connector (pin 19). in the svhs mode, this pin is the luma output. aux_lout o auxiliary left audio output : this pin is the output to the left channel audio (pin 3) of the auxiliary scart connector. aux_rout o auxiliary right audio output : this pin is the output to the right channel audio (pin1) of the auxiliary scart connector. aux_mono o auxiliary mono output: this pin is equivalent to the sum of the output signals on aux_lout and aux_rout . blank o blanking output : this output provides the blanking signal to the tv scart connector (pin 16). this signal is either the blanking signal from the auxiliary scart connector ( ablank ) or the external video encoder ( eblank ). lout o left audio output : this pin is the output to the left channel audio rca jack. rout o right audio output : this pin is the output to the right channel audio rca jack. mod_mono o mono audio output : this pin is sum of lout & rout to the rf modulator input.
avpro ? 5002c dual scart a/v switch 14 pin descriptions (continued) name type description aux_cout o aux chroma output: this output provides a chroma signal to the auxiliary scart connector to support svhs operation. this pin is typically ac coupled to pin 15 of the auxiliary scart connector. when the s-video mode is selected, a chroma signal from the video encoder is output to this pin. mod_yc o tv modulator video output: this pin provides composite video for an external rf modulator. the signal on this pin follows the composite video output to the tv_ycout pin. tv_ycout o tv video output: this pin is the composite video output to the tv scart connector (pin 19). in the svhs mode, this pin provides luminance information. tv_r o tv red output : this pin provides red video to the tv scart connector (pin 15). in svhs mode, this pin provides the chroma information. tv_g o tv green output : this pin provides green video to the tv scart connector (pin 11). tv_b o tv blue output : this pin provides blue video to the tv scart connector (pin 7). tv_lout o tv left audio output : this pin is the output to the left channel audio (pin 3) of the tv scart connector. tv_rout o tv right audio output : this pin is the output to the right channel audio (pin1) of the tv scart connector. tv_fnc i/o tv function pin: this is a bi-directional pin. as an input, it digitizes the analog voltage on the tv scart function pin. as an output, it puts out one of three voltage levels to the tv scart function pin. digital pins do_0 o digital output 0 : this pin is a general purpose output that is controlled by serial port register. do_1 o digital output 1 : this pin is a general purpose output that is controlled by serial port register. sclk i serial clock input : this pin accepts a serial port clock input signal. sdata i/o serial data input/output that can receive or transmit serial data. power/ground pins vcc - +5 vdc power supply pins. vee - -5 vdc power supply pins. vdd - +12 vdc power supply pin for function switching circuits. vref - internal voltage reference, bypass pin. add capacitor 0.1 uf ( 1.0 uf for better psrr ) to ground. gnd - ground for all blocks. rbias - bias point of internal current generator. add resistor 10.0k ( + 1% ) to ground. tgen - reference point for internal timing circuit. add capacitor 470 pf to ground.
avpro ? 5002c dual scart a/v switch 15 electrical specifications absolute maximum ratings operation beyond the maximum ratings may damage the device parameter rating storage temperature -55 to 150 c junction operating temperature +150 c positive supply voltages -0.3 v < vcc < 6v; vcc ? 0.3 v < vdd < 13 v negative supply voltages -6 v < vee < +0.3 v voltage applied to digital and video inputs -0.3v to vcc+0.3 v audio input pins vee -0.3v to vcc+0.3 v function input pins (300 w source) -0.3v to +15 v specifications : unless otherwise specified: 0 < ta < 70 c; power supplies vcc = +5.0 v 5%, vee = -5.0 v 5%, vdd = 12.0 v 5%. parameter condition min nom max unit operating characteristics power supply currents all outputs loaded vcc (+5 vdc) vee (-5 vdc) vdd (+12 vdc) -65 130 -37 23 150 28 ma ma ma psrr f in = 100 hz, 0.3 vpp on vcc/ vee 40 db switch time from serial data acknowledge 2.0 m sec serial port timing( set by i 2 c controller ) sclk input frequency 400 khz sclk low time ( t cl ) 1.3 m sec sclk high time ( t ch ) 0.6 m sec rise time ( t rt ) sclk and sdata 300 nsec fall time ( t ft ) sclk and sdata 300 nsec data set-up time* ( t dsu ) sdata change to sclk high 100 nsec data hold time* ( t dh ) sclk low to sdata change 0 nsec start set-up time ( t ssu ) 0.6 m sec start hold time ( t sh ) 0.6 m sec stop set-up time ( t psu ) 0.6 m sec glitch rejection maximum pulse on sclk and/or sdata 50 nsec * these specifications also apply to an acknowledge generated by the device.
avpro ? 5002c dual scart a/v switch 16 specifications (continued) digital i/o characteristics (sclk, sdata) parameter condition min nom max unit high level input voltage 0.7* vcc vcc+0.3 v low level input voltage gnd-0.3 0.3* vcc v high level input current vin = vcc - 1.0v -10 10 a low level input current vin = 1.0v -10 10 a low level output voltage (sdata) i ol = 3 ma 0.4 v fall time ( t ft ) v ihmin to v ilmax (sdata) acknowledge or read with c l = 400pf 250 nsec digital i/o characteristics (do_0, do_1, tv_fnc, aux_fnc) digital output sink current do_0, do_1, register bits read 0 1.0 ma digital output fall time r l = 10 k w , c l = 15 pf 100 nsec register 2 = xxxxxx00 register 2 = xxxxxx01 register 2 = xxxxxx10 or xxxxxx11 0.0 4.9 10.0 1.0 6.0 10.5 1.2 6.5 vdd v v v tv_fnc or aux_fnc output level 10 k or higher load to ground passthrough mode register 2 = xxxx11xx 0.0 v < vin < 2.0 v 4.9 v < vin < 7.0 v 10.0 v < vin < vdd v 0.0 4.5 9.5 2.0 7.0 vdd v v v tv- fnc or aux_fnc input levels read register = xxxxxx00 read register = xxxxxx01 read register = xxxxxx10 0.0 4.5 9.5 2.0 7.0 vdd v v v
avpro ? 5002c dual scart a/v switch 17 video characteristics - unless otherwise noted, typical output loading on all video outputs is 137 w . all video outputs are capable of withstanding a sustained 62 ohm load to ground without damage. input impedance all video inputs 100 k w input dynamic range f in = 100 khz, thd < 1.0% 1.5 vpp gain at all video outputs, except mod_yc 1.0 vpp input, f in = 100 khz 1.9 2.0 2.1 v/v gain at mod_yc 1.0 vpp input, f in = 100 khz 0.95 1.0 1.05 v/v rgb gain control a 0 = reading xx00xxxx gain 1.0 vpp input, f in = 100 khz; register 2 = xx00xxxx register 2 = xx01xxxx register 2 = xx10xxxx register 2 = xx11xxxx 1.9 a 0 ?12% a 0 ?22% a 0 ?33% 2.0 a 0 ?10% a 0 ?20% a 0 ?30% 2.1 a 0 ?8% a 0 ?18% a 0 ?27% v/v v/v v/v v/v output gain inequality rgb or svhs output channel to channel -2.5 2.5 % output dc level blank level clamp voltage rgb, cvbs or luma outputs 1.2 v average level chroma output 1.8 v signal to noise ratio 1 vpp input 58 65 db cross talk f in = 4.43 mhz, 1 vpp -55 db output to output differential delay rgb signals, f in = 100 khz -20 20 nsec input or output, logical ?0? 0.0 0.4 v blanking level input or output, logical ?1? 1.0 3.0 v blanking delay blank to rgb signals -50 50 nsec differential phase tv_ycout, aux_ycout and mod_yc -2.5 2.5 deg. differential gain tv_ycout, aux_ycout and mod_yc -5 5 % audio characteristics - unless otherwise noted, all audio outputs shall drive a load of 10 k w . all audio outputs will withstand a sustained short to ground without damage. parameter condition min nom max unit input impedance 20 k w output impedance 10 w gain f in = 1.0 khz, 0 db settings 0.95 1.0 1.05 v/v 0.5 vrms input, flat within 0.3 db 20 khz frequency response measured -3 db point 100 khz dynamic range f in = 1.0 khz, 0.5 vrms; register 4 = xxxxxx11 90 db
avpro ? 5002c dual scart a/v switch 18 audio characteristics - continued parameter condition min nom max unit signal to noise ratio f in = 1.0 khz, 0.5 vrms; register 4 = xxxxxx11 90 db 0.5 vrms output 0.05 % bypass volume control 2.0 vrms output 0.1 % 0.5 vrms output 0.1 % distortion (thd)* aux_lin/ aux_rin to all outputs pass through volume control 2.0 vrms output 0.35 % 0.5 vrms output 0.1 % bypass volume control 2.0 vrms output 0.35 % 0.5 vrms output 0.05 % distortion (thd)* lin/ rin to lout/rout, tv_lout/ tv_rout and mod_mono pass through volume control 2.0 vrms output 0.1 % 0.5 vrms output 0.1 % distortion (thd)* lin/ rin to aux_lout, aux_mono and aux_rout independent of volume control 2.0 vrms output 0.35 % 0.5 vrms output 0.05 % distortion (thd)* tv_lin/ tv_rin to all outputs independent of volume control 2.0 vrms output 0.1 % dc offset at aux outputs aux_lout, _rout and _mono -55 45 mv dc offset at tv & line outputs bypass volume control -55 45 mv tv_rout, tv_lout, rout, volume control active, 0 db gain -100 60 mv lout and mod_mono volume control active, 6 db gain -140 120 mv output phase matching f in = 1.0 khz, 0.5 vrms; any stereo pair 0.5 deg. channel separation f in = 1.0 khz, 2.0 vrms, 0 db attenuation 90 db reg. 0=x0000000 (0 db attenuation) register 4 = 00000000 register 4 = 00000100 0 6 db db reg. 0=x0011111 (31 db attenuation) register 4 = 00000000 register 4 = 00000100 -31 -25 db db reg. 0=x0111111 (63 db attenuation) register 4 = 00000000 register 4 = 00000100 -58 -52 db db output attenuation (volume control) at tv_lout/ tv_rout, lout/rout and mod_mono register 0 = x1xxxxxx (mute) register 4 = 00000000 -75 db attenuation accuracy register 0 = 00000000 to 00011111 -5 5 % audio to video path skew video input = 1.0 vpp @ 100 khz audio input = 0.5 vrms @ 1.0 khz 1.5 m sec * specified at 1 khz frequency and 0 db dac input gain and volume control settings.
avpro ? 5002c dual scart a/v switch 19 equivalent circuits: video output circuit auxiliary scart pin 15 circuit audio output circuit 62 w on + - impedance 11 w esd protection r l = 75 w aux_cout 0.01 f 0.01 f 62 w aux_r aux_cin scart pin 15 impedance 11 w esd protection + - scart connector 300 w (min) esd protection r l 3 10k w
avpro ? 5002c dual scart a/v switch 20 digital output circuit aux and tv function switching circuit audio input circuit 30k w vcc scart connector r l 3 10 k w esd protection 12v 50 w r sw = 70 w 140k w 70k w r l 3 10k w esd protection scart connector optional ? 70k w
avpro ? 5002c dual scart a/v switch 21 video input circuit serial port timing (typical) sclk t ft t ch t cl t psu t dsu t dh t sh t ssu t rt sdata start msb lsb stop hi-z 0.01 f r l = 75 w video mux dc restore esd protection
avpro ? 5002c dual scart a/v switch 22 package pin designation (top view) avp ro 5002C-CGT (jedec lqfp) tv_r n/c mod_yc tv_ycout blank gnd vcc gnd tv_b aux_ycout enc2_y aux_cout enc2_c vcc tv_g n/c tv_rin n/c tv_ycin aux_cin tv_lin 1 9 17 25 33 41 49 57 aux_mono avpro 5002c- 64cgt enc_y enc_b enc_g enc_r enc_yc enc_c rin lin vee sdata sclk do_0 do_1 vdd tv_fnc aux_fnc tgen aux_b aux_lin rbias vref aux_rin eblank ablank aux_ycin aux_g aux_r mod_mono vcc n/c aux_rout tv_rout rout gnd vee gnd tv_lout aux_lout vcc vee n/c lout
avpro ? 5002c dual scart a/v switch 23 mechanical drawing 64-lead low profile plastic quad flatpack package ( jedec lqfp ) note: controlling dimensions are in mm. ordering information part description order no. package mark avpro ? 5002c dual scart a/v switch avpro ? 5002C-CGT avpro ? 5002C-CGT no responsibility is assumed by tdk semiconductor corporation for use of this product nor for any infringements of patents and trademarks or other rights of third parties resulting from its use. no license is granted under any patents, patent rights or trademarks of tdk semiconductor corporation and the company reserves the right to make changes in specifications at any time without notice. accordingly, the reader is cautioned to verify that you are referencing the most current data sheet before placing orders. to do so, see our web site at http://www.tdksemiconductor.com or contact your local tdk semiconductor representative. purchase of i 2 c components of tdk corporation or one of its sublicensed associated companies conveys a license under the philips i 2 c patent rights to use these components in an i 2 c system, provided that the system conforms to the i 2 c standard specification as defined by philips. tdk semiconductor corp., 2642 michelle dr., tustin, ca 92780, (714) 508-8800, fax (714) 508-8877, http://www.tdksemiconductor.com 1999 ? 2000 tdk semiconductor corporation 10/17/00- rev. - c

▲Up To Search▲

Price & Availability of 5002C-CGT

	To Download 5002C-CGT Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .