g??a r t c 6 7 0 1 o?^?uf g??a r t c 6 7 0 1 o?^?uf RTC6701 preliminary data sheet dec 2005 www.richwave.com.tw specifications subject to change without notice pre liminary confidential proprietary rev v.004 1 rev. date from description v.002 v.003 10/3/2005 10/31/2005 r2200 r2200 original modify the following items: 1. add pin 17 pd_reg1d8 description; 1 for power down and 0 for power on 2. add absolute maximum ratings v.004 v.004 12/1/2005 12/2/2005 r2200 r2100 r2200 1. add ?spi digital timing diagram? and revised dat e code. 2. update output power data. 3. removed rx if input in absolute maximum ratings. 4. add mini. audio snr. applicant: r2200 approvals: document title: data sheet of RTC6701 r2000: s.c. wong r2500: c.j. chao document no.: RTC6701-dst-004 r2100: j.y. tsai marketing: jack chang r2200: w.k. deng r2300: t.s. liou signature on file in dc contents: 8 attach: 0 total page: 9 file format: word www..net
RTC6701 preliminary data sheet dec 2005 www.richwave.com.tw specifications subject to change without notice pre liminary confidential proprietary rev v.004 2 RTC6701 cmos 2.4ghz fm/fsk transmitter product description the RTC6701 is a fm/fsk transmitter intended for ap plication on 2.4ghz ism band analog fm or digital fsk transmission. the chip includes a rf modulator, two channels of audio modulator and a power amplifier with up to +11.5dbm power out put. the rf modulator block, which is frequency-synthesizer based with an integrated 2.4g hz vco, generates the 2.4ghz fm signal modulated from stereo audio l(left)/r(left) signals . on-chip two audio modulators with stereo audio input signals provide the fm audio modulated signal at 6 mhz and 6.5mhz, respectively. monaural application is also possible by turning of f one of two audio modulators. transmission frequency can be set by internal regis ter via spi programming, or by selecting among 4 fixed channels using three dedicated pins. output power of +1.5dbm or +11.5dbm can be configured via pins 28 and 29 to fit ce/fcc requ irement easily. the device is available in a 32-pin qfn package. features 3.3v power supply 2.4ghz ism band fm modulator fm/fsk transmitter operation simple three digital pins setting 4 fixed channels to eliminate external micro-controller output power +1.5dbm or +11.5dbm, selected by pin c onnection fm sound carriers at 6 and 6.5mhz cmos technology on-chip vco and pll transmitter frequency programmability by spi 32-pin leadless qfn package application av sender fsk transmitter baby monitor wireless camera wireless audio wireless earphone www..net
RTC6701 preliminary data sheet dec 2005 www.richwave.com.tw specifications subject to change without notice pre liminary confidential proprietary rev v.004 3 block diagram pfd 2 rf vco aout1 spi_se avt1 avdd1 acp1 vdd reg1d8 pd_reg1d8 spidata/cs2 spiclk/cs0 spile/cs1 vdd33 bx synvss rfgnd2 paout1 rfgnd1 paout2 vt avt2 vcovdd cp acp2 aout2 r counter charge pump pa2 pa1 n/a counter spi/ register_cont audio2_syn audio1_syn regulator (3.3v to 1.8v) bc 3 7 6 5 4 1 8 23 22 18 19 20 21 24 17 15 14 10 11 12 13 16 9 26 27 31 30 29 28 25 32 avdd2 nc bcr xtal2 xtal1 pavdd nc gnd www..net
RTC6701 preliminary data sheet dec 2005 www.richwave.com.tw specifications subject to change without notice pre liminary confidential proprietary rev v.004 4 pin descriptions pin name i/o function 1 vcovdd supply in vdd for vco 1 2 vt analog in vtune for vco 3 gnd analog gnd analog gnd 4 cp analog out synthesizer charge pump output 5 avt2 analog in vtune for audio 2 pll 6 acp2 analog out charge pump for audio 2 7 aout2 analog out fm modulated audio 2 output 8 avdd2 supply in 3.3v power supply for audio 2 modulator 9 aout1 analog out fm modulated audio 1 output 10 nc nc nc 11 avt1 analog in vtune for audio1 pll 12 acp1 analog out charge pump for audio 1 13 avdd1 supply in 3.3v power supply for audio 1 modulator 14 vdd supply in 3.3v digital dc power supply 15 spi_se digital in switch mode or spi selection (internal pull high) 16 bcr analog i/o reference current by connecting 10k resistor 17 reg1d8 analog out regulator out 1.8v regulator output 18 pd_reg1d8 digital in power down for 1.8v regulator 1: power down; 0: power on 19 xtal1 analog i/o crystal connection 20 xtal2 analog i/o crystal connection 21 vdd33 supply in 3.3v dc power supply for digital circuits cs0 digital in easy channel selection 2 (internal pull high) 22 spiclk digital in spi bus clock input cs1 digital in easy channel selection 2 (internal pull high) 23 spile digital in spi bus latch enable input cs2 digital in easy channel selection 2 (internal pull high) 24 spidata digital in spi bus data input 25 bx digital in alternative band selection 2 (internal pull high) 26 synvss digital gnd digital gnd for synthesizer 27 rfgnd2 analog gnd rf gnd 28 paout2 analog out connect with paout1 for +12dbm output 29 paout1 analog out pa output for 0dbm 30 rfgnd1 analog gnd rf gnd 31 pavdd supply in 3.3v vdd for pa esd 32 nc nc nc note 1. connect to 3.3v supply through a resistor. nominal voltage at this pin=2.5v. note 2. digital pins (15, 22, 23, 24, 25) with inte rnal pull-high circuits can be left floating for lo gical high. www..net
RTC6701 preliminary data sheet dec 2005 www.richwave.com.tw specifications subject to change without notice pre liminary confidential proprietary rev v.004 5 electrical specifications (1) absolute maximum ratings symbol parameter ratings unit tstr storage temperature range -65 to +150 c totr operating temperature range -40 to +85 c vdd supply voltage -0.5 to +5 v vlog logic control signal -0.5 to +5 v the maximum rating must not be exceeded at any time . do not operate the device under conditions outsid e the above ratings. (2) dc electrical characteristics symbol parameter condition min. typ. max. unit tj temperature range - -40 25 85 c vdd supply voltage 3.1 3.3 3.5 v i_rf power consumption for chip (+12dbm output) tt 25c, 3.3v 49 ma i_module power consumption for module tt 25c, 3.3v 54 ma i_pd power down current leakage tt 25c, 3.3v 1 10 ua fref oscillator operating frequency 8 mhz v_ih high level input voltage for digital interface v_io=3v 0.7xv_io v_io+0.3 v v_il low level input voltage for digital interface -0.3 0.3xv_io v (3) transmitter specifications symbol parameter condition min. typ. max. unit fc frequency range 2.37 2.51 ghz pout_h* maximum output power at high power mode connect paout1 and paout2 10.5 11.5 12.5 dbm pout_l* maximum output power at low power mode connect paout1 only 0.5 1.5 2.5 dbm 2ndh_h* the 2 nd harmonic referenced with the fundamental signal at high power mode with reference filter design -30 dbc pn the phase noise at 2414ghz 100khz offset 1mhz offset -85 -110 dbc/hz 3rdh_h* the 3 rd harmonic referenced with the fundamental signal at high power mode with reference filter design -40 dbc 2ndh_l* the 2 nd harmonic referenced with the fundamental signal at low power mode with reference filter design -30 dbc 3rdh_l* the 3 rd harmonic referenced with the fundamental signal at low power mode with reference filter design -40 dbc * all with proper match at the pa output, before fu rther ceramic filtering. www..net
RTC6701 preliminary data sheet dec 2005 www.richwave.com.tw specifications subject to change without notice pre liminary confidential proprietary rev v.004 6 (3) transmitter specifications (continued) symbol parameter condition min. typ. max. unit video zin_video video input impedance (as reference design) 75 vin_video video peak to peak input voltage (as reference design) 75 ohm load 1 vpp audio vtaa video carrier to audio carrier ratio (as reference design) no video and audio signal in 24 27 30 dbc fau audio carrier frequency left sound right sound 6 6.5 mhz vin_audio audio peak to peak voltage at audio vtune pin @1khz tone input with 25khz frequency deviation 30 mvpp thd total harmonic distortion measurement by rtc6711 receiver @1khz tone input with 25khz frequency deviation 0.6 0.9 % f_corner 3db corner frequency of pre-emphasis (as reference design) 4 khz snr_a audio snr (as reference design,) with pre-emphasis/ de-emphasis, @1khz tone input with 25khz frequency deviation 45 47 db www..net
RTC6701 preliminary data sheet dec 2005 www.richwave.com.tw specifications subject to change without notice pre liminary confidential proprietary rev v.004 7 (4) spi digital timing diagram 1st data 2nd data t 4 t 5 t 6 lsb control bit invalid data msb data clk le t 1 t 7 t 2 t 3 p a ra me t er m in. ty p. m a x. un it t1 20 - - ns t2 20 - - ns t3 30 - - ns t4 30 - - ns t5 100 - - ns t6 20 - - ns t7 100 - - ns note: 1.) on the rising edge of the clock, one bit of dat a is transferred into the shirt register. 2.) le should be *l* when the data is transferred i nto the shirt register. www..net
RTC6701 preliminary data sheet dec 2005 www.richwave.com.tw specifications subject to change without notice pre liminary confidential proprietary rev v.004 8 channel selection there are two principle modes for channel selection . spi_se (pin 7) high low mode spi mode easy channel selection mode (1) easy channel selection mode when pin 15 (spi_se) is set at low (0v), the chip o perates in easy channel selection mode. operation frequency can be selected by the pins 25( bx), 24(cs2), 23(cs1) and 22(cs0). the selected channel frequencies are listed in the tabl e below. bx=0 pin25 (bx) is pulled to low for normal ism band, an d operation frequency table show as following table. pin22/pin23/pin24 cs0/cs1/cs2 bx spi_se 011 101 110 111 0 0 2414mhz 2432mhz 2450mhz 2468mhz bx=1 reserved for alternative band selection (2) spi mode when pin 15 (spi_se) is set at high (3.3v), the chi p works as in the spi mode and the pins 24(spidata), 23(spile) and 22(spiclk) are used for ?spi? inputs for 3-wire programming interface. the bx is ?don?t care?. spi register definition address 00: synthesizer register a bits 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 name syn_rf_r_reg syn_rf_a_reg address pin r14 r13 r12 r11 r10 r9 r8 r7 r6 r5 r4 r3 r2 r1 r0 a6 a5 a4 a3 a2 a1 a0 default 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 1 1 1 1 0 0 0 0 syn_rf_r_reg : r counter divider ratio control regi ster [14:0] syn_rf_a_reg : a counter divider ratio control regi ster [6:0] r14=msb, r0=lsb for integer n synthesizer, the rf lo frequency is c alculated by (n*64+a)*f ref /r, where f ref is the frequency of external reference oscillator (8 mhz). ex for chann el 1 operation (f = 2414mhz) default: r=400; n=1885; a=60 2414mhz=(1885*64+60)*8mhz/400 www..net
RTC6701 preliminary data sheet dec 2005 www.richwave.com.tw specifications subject to change without notice pre liminary confidential proprietary rev v.004 9 address 01: synthesizer register b bits 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 name syn_rf_n_reg cp_rf sc _trl not used address pin n12 n11 n10 n9 n8 n7 n6 n5 n4 n3 n2 n1 n0 default 0 0 1 1 1 0 1 0 1 1 1 0 1 0 0 1 0 x x x x x 0 1 syn_rf_n_reg : n counter divider ratio control regi ster [12:0] (default r ratio=400) cp_rf [2:0] rf charge pump current control (from 50 ua to 6ma, default=100ua) sc_ctrl: external/internal sc_select control pin (l ow=internal). if set ?1? in rtc67 series then charg e pump will enter the testing mode ----only for internal testi ng address 10: synthesizer register c bits 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 name not used not used mout pre_control not used pa_bias address pin 8 7 6 5 4 3 2 1 0 1 0 2 1 0 1 0 default x x x x x x x x x x x x 0 0 1 0 1 x x x 1 0 1 0 mout : multi-function output select (00,01,11,10)=(gnd, lock in detect ,rf divider outp ut, reference clk output) pre_control[2:0]: prescalar current control (20~140 ua) pa_bias[1:0]: pa bias resistor selection address 11: synthesizer register d bits 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 name not used vcosc pa_ pd audio_div not use d acp address pin 1 0 7 6 5 4 3 2 1 0 default x x x x x x x x x x x 1 0 0 0 1 0 0 1 0 0 0 1 1 vcosc[1:0]: 2-bit rf vco switch capacitor control i n RTC6701 pa_pd 1: pa power down control, 0 for power on an d 1 for power down audio_div[5:0]: reference clock division ratio in a udio carrier frequency synthesizer. acp[1:0]: audio charge pump current control (defaul t 00:20ua, 01:50ua, 10: 110ua, 11: 140ua) www..net
RTC6701 preliminary data sheet dec 2005 www.richwave.com.tw specifications subject to change without notice pre liminary confidential proprietary rev v.004 10 package qfn 5x5 32 pins www..net
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