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TA8865BN 2001-02-21 1/27 toshiba bipolar linear integrated circuit silicon monolithic TA8865BN pll multi pif / sif system for color tv and vcr the TA8865BN is a pif / sif with pll detection that is compatible with the pal, ntsc and l-secam systems. intercarrier pll detection system is adopted to realize high quality audio in l-secam. use of a 2-stage variable high-gain sif agc amplifier makes possible nicam compatibility. the TA8865BN combine these functions in a 36pin dual-in-line shrink type plastic package. features pif circuit pll type synchronous detector 2-stage variable-gain pif amplifier high-speed agc with dual time constant keyed agc with l-secam system ; peak agc with b / g system keyed apc with l-secam system synchronous separation circuit mute output (can be used to distinguish that signal is inputted or not.) adjustment free aft (bipolar) reverse rf agc sif circuit sif split input high-gain sif agc amplifier (compatible nicam system) quadrature-type fm audio detector (for b / g system) direct pll am detector (for l-secam system) note: handle with care as the static withstand voltage of this product is low. (mm : 150v hbm : 1750v) weight: 2.98g (typ.) toshiba is continually working to improve the quality and reliability of its products. nevertheless, semiconductor devices in ge neral can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. it is the responsibi lity of the buyer, when utilizing toshiba products, to comply with the standards of safety in making a safe design for the entire system, a nd to avoid situations in which a malfunction or failure of such toshiba products could cause loss of human life, bodily injury o r damage to property. in developing your designs, please ensure that toshiba products are used within specified operating ranges as set forth in the most recent toshiba products specifications. also, please keep in mind the precautions and conditions set forth in the ?handlin g guide for semiconductor devices,? or ?toshiba semiconductor reliability handbook? etc.. the toshiba products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). these toshiba products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfun ction o r failure of which may cause loss of human life or bodily injury (?unintended usage?). unintended usage include atomic energ y control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion cont rol instruments, medical instruments, all types of safety devices, etc.. unintended usage of toshiba products listed in this docume n t shall be made at the customer?s own risk. the products described in this document are subject to the foreign exchange and foreign trade laws. the information contained herein is presented only as a guide for the applications of our products. no responsibility is assume d b y toshiba corporation for any infringements of intellectual property or other rights of the third parties which may result from i ts use. no license is granted by implication or otherwise under any intellectual property or other rights of toshiba corporation o r others. the information contained herein is subject to change without notice. 000707 eba1
TA8865BN 2001-02-21 2/27 block diagram
TA8865BN 2001-02-21 3/27 terminal function pin no. pin name function interface circuit 1 aft output aft output pin ; polarity can be reversed by switching pin 23 (mode sel). when there is no signal, aft out is muted (approximately 4.5v) using pin 24 (lock filter) voltage (approximately 4v). 2 fm det generates a 90 degrees phase shifted signal for fm detection. if this terminal is set to 0.2v or below, audio out is muted (approximately 4v). 3 audio output audio output pin ; for a monaural audio circuit, connect a de-emphasis circuit. the maximum flew out current of this terminal is 4ma (minimum load : 1k ? ). 4 sif agc filter agc filter of the sif ; applies average-value agc. the l-secam am audio distortion can be improved by increasing the filter capacitance, but agc response is slowed down.
TA8865BN 2001-02-21 4/27 pin no. pin name function interface circuit 5 6 sif input a input pin for lower-side sif ; built-in 2-stage high-gain agc amplifier (agc range : approximately 55db) makes possible nicam compatibility. sif input a (pins 5 and 6) can be switched to sif input b (pins 8 and 9) depending on combination of pin 23 and 35 voltage. sif standard input level is 80dbv. 7 sif gnd ground for the sif circuit. ? 8 9 sif input b input pin for upper-side sif ; built-in 2-stage high-gain agc amplifier (agc range : approximately 55db). sif input b (pins 8 and 9) can be switched to sif input a (pins 5 and 6) depending on combination of pins 23 and 35 voltage. sif standard input level is 80dbv. 10 sif v cc v cc for the sif circuit. external signals could be mixed into the ic, causing various characteristics to be deteriorated. to prevent it, insert the following trap filters between the external power supply and this pin. : pif carrier frequency trap filter horizontal scanning frequency (f h ) trap filter (in the application circuit, a 68h coil is inserted. v cc = 9.0v (typ).) ? 11 pif gnd ground for the pif circuit ? 12 13 pif input input pin for pif ; built-in 2-stage, dual time-constant high-speed agc amplifier (agc range : approximately 60db). pif standard input level is 90dbv.
TA8865BN 2001-02-21 5/27 pin no. pin name function interface circuit 14 16 1st agc filter 2nd agc filter first and second agc filters of pif circuit. this ic uses keyed agc in l mode and peak agc in bg mode. 15 pif v cc v cc for the pif circuit. external signals could be mixed in to the ic, causing various characteristics to be deteriorated. to prevent it, insert the following trap filters between the external power supply and this pin. : pif carrier frequency trap filter horizontal scanning frequency (f h ) trap filter. (in the application circuit, a 68h coil is inserted. v cc = 9.0v (typ).) ? 17 mute filter the filter of the mute detector. performs sync detection between the input sync and f h generated in the ic. 18 h.afc filter afc filter of the horizontal-oscillation pll circuit. 32f h vco is controlled by this terminal voltage.
TA8865BN 2001-02-21 6/27 pin no. pin name function interface circuit 19 h. vco for connection of the 32f h ceramic oscillator. for keyed agc / apc in l mode and mute output, a horizontal countdown system is adopted. 20 mute output mute output pin ; when input sync. synchronize with f h generated in the ic, the output is low ( gnd). when not synchronize the output is high ( v cc ). use to distinguish that signal is inputted or not. the maximum flew out current of this terminal is 1.5ma. 21 sync input input pin for the horizontal sync signal separation circuit ; apply 2v p-p synchronous negative-polarity video signal through a filter. 22 video output pif detected signal output pin ; the standard output level is 2v p-p . apply v / c / d through a sound trap of 5.5 / 6.0 / 6.5mhz. it is recommended to insert buffer amplifier (emitter follower) between this terminal and sound trap to suppress intermodulation. the maximum flew out current of this terminal is 4ma (minimum load is 1.4k ? ).
TA8865BN 2001-02-21 7/27 pin no. pin name function interface circuit 23 mode sel for switching between sif inputs a and b in l mode (pin 35 : 3.5~6.5v), and switching aft output polarity. for details see the mode table on page 10. 24 lock filter pll synchronous detection circuit filter ; distinguishes that signal is inputted or not by detection of average of pif output signal. pin voltage is approximately 2v (narrow pull-in) when signal is inputted and approximately 4v (broad pull-in) with no signal. at no signal, pin voltage can be used to apply aft mute. 25 26 pif vco1 pif vco2 for pll vco tank coil for pif ; vco frequency is adjusted by changing the variable capacitance in the ic. when the resonance circuit has capacitor of 27pf the frequency should be adjusted to approximately 3mhz. 27 vco gnd ground for the vco circuit ? 28 loop filter pll loop filter of the pif detection ; this ic has a built-in circuit for changing the loop filter time constant. keyed apc is applied in l mode, full-time apc in bg mode.
TA8865BN 2001-02-21 8/27 pin no. pin name function interface circuit 29 vco v cc v cc for the vco circuit. external signals could be mixed into the ic, causing various characteristics to be deteriorated. to prevent it, insert the following trap filters between the external power supply and this pin. : pif carrier frequency trap filter. horizontal scanning frequency (f h ) trap filter. (in the application circuit 68h coil is inserted. v cc = 9.0v (typ).) ? 30 31 sif vco1 sif vco2 for pll vco tank coil for am sif in the l system ; vco frequency is adjusted by changing the variable capacitance in the ic. when the resonance circuit has capacitor of 27pf the frequency should be adjusted to approximately 3mhz. 32 sif apc filter apc filter for am sif detection in l systems ; sif vco frequency is controlled by this terminal voltage. 33 1st sif output fm sif detection output ; insert bpf between this pin and limiter input (pin 34). in application circuits, recommendation is to use together with sif converter ta8710s .
TA8865BN 2001-02-21 9/27 pin no. pin name function interface circuit 34 l / bg secam adj switching between l and bg modes ; in l mode, video output amplitude can be adjusted by varying pin voltage between 3.5 and 6.5v. 35 limiter input rf agc delay both limiter input pin and rf agc delay level adjustment pin ; inputted signal is divided into ac and dc components internally. standard limiter input level is 110dbv ; rf agc delay level should be used to adjust tuner gain in accordance with electric field strength. 36 rf agc output rf agc output pin (reverse type) ; to reduce noise, insert capacitor between this pin and gnd. if a resistor of 33k ? is connected to ground the output gain is reduces by 6db.
TA8865BN 2001-02-21 10/27 mode sw (pins 34 and 23) receiving system pin 34 (s-adj.) voltage pin 23 (mode sel) voltage sif input aft polarity receiving channel 5v (2.8~6.7v) pin 8, 9 + ? v l open pin 8, 9 ? v l v h , u l-secam 4.5v ~ 7.0v gnd (0~0.7v) pin 5, 6 ? v h , u ? others gnd (0~1.0v) ? pin 5, 6 ? all channels mute output pin 20 (mute output) f h lock low level ( gnd) f h unlock high level ( v cc )
TA8865BN 2001-02-21 11/27 maximum ratings (ta = 25c v cc = 9.0v) characteristic symbol rating unit supply voltage v cc 15 v power dissipation p d (note) 1666 mw input signal amplitude e in 4.0 v p-p input terminal voltage v in gnd ? 0.2 ~v cc + 0.2 v operating temperature t opr ? 20~65 c storage temperature t stg ? 55~150 c note: when using the device at above ta = 25c, decrease the power dissipation by 13.6mw for each increase of 1c. recommended operating conditions characteristic symbol min typ. max unit remarks sif power supply voltage v ccp 8.5 9.0 9.5 v pif power supply voltage v ccs 8.5 9.0 9.5 v vco power supply voltage v ccv 8.5 9.0 9.5 v pif input level v intyp ? 90 100 dbv sif input level v fintyp ? 80 100 dbv limiter input level v lintyp ? 110 ? dbv sync separation input level v spin ? 2.0 ? v p-p
TA8865BN 2001-02-21 12/27 electrical characteristics dc characteristics (unless otherwise specified v cc = 9v, ta = 253c) characteristic symbol test cir- cuit test conditions min typ. max unit i pif 18 28 38 i sif 20 30 40 power supply current i vco 1 pin 34-5v, pin 2-gnd, pin 4-3v, pin 16-3v, pin 23-open 9 16 21 ma v2 (*1) 2.4 2.7 3.0 v3 (*2) 3.8 4.0 4.2 v5 1.8 2.0 2.2 v6 pin 34-gnd, pin 2-gnd, pin 4-3v, pin 16-3v, pin 23-open 1.8 2.0 2.2 v8 1.8 2.0 2.2 v9 pin 34-5v, pin 2-gnd, pin 4-3v, pin 16-3v, pin 23-open 1.8 2.0 2.2 v12 1.8 2.0 2.2 v13 1.8 2.0 2.2 v17 0 0.1 0.2 v19 5.4 5.8 6.2 v20 8.8 9.0 ? v21 6.4 6.6 6.8 v22 4.2 4.5 4.8 v23 1.6 1.75 1.9 v25 7.5 7.7 7.9 v26 pin 34-gnd, pin 2-gnd, pin 4-3v, pin 16-3v, pin 23-open 7.5 7.7 7.9 v30 7.5 7.7 7.9 v31 pin 34-5v, pin 2-gnd, pin 4-3v, pin 16-3v, pin 23-open 7.5 7.8 7.9 terminal voltage v33 1 (*2) 3.8 4.1 4.4 v * 1: pin 34-gnd, pin 2-open, pin 4-3v, pin 16-3v, pin 23-open * 2: pin 34-gnd, pin 2-gnd, pin 4-3v, pin 16-3v, pin 23-open
TA8865BN 2001-02-21 13/27 ac characteristics (unless otherwise specified v cc = 9v, ta = 253c) pif circuit characteristic symbol test cir- cuit test condition min typ. max unit b / g video output amplitude v ob / g 1 (note 1) 1.8 2.0 2.2 v p-p b / g input sensitivity v inbmin 1 (note 2) ? 37 42 dbv b / g maximum input v inbmax 1 (note 3) 100 107 112 dbv b / g output level for no input v nosgb 1 (note 4) 4.0 4.3 4.6 v b / g sync tip level v syncb 1 (note 5) 1.9 2.2 2.5 v differential gain dg ? 2.0 5.0 % differential phase dp 1 (note 21) ? 2.0 5.0 video s / n s / n 1 (note 7) 51 56 61 db carrier suppression ratio cr 1 (note 8) 45 53 ? db 2nd harmonic suppression ratio hr 1 (note 9) 45 60 ? db intermodulation im 1 (note 10) 40 47 ? db video frequency characteristic f c 1 (note 11) 6 8 10 mhz l-secam max. video output amplitude v olmax 1 (note 12) 2.3 2.5 ? v p-p l-secam min. video output amplitude v olmin 1 (note 13) ? 0.5 1.0 v p-p l input sensitivity v inlmin 1 (note 14) ? 37 42 dbv l maximum input v inlmax 1 (note 15) 100 107 112 dbv l output level for no input v nosgl 1 (note 16) 2.2 2.5 2.8 v l sync tip level v syncl 1 (note 17) 2.1 2.4 2.7 v pif agc range r piag 1 (note 18) 63 70 77 db pif agc min. output v pimi 1 (note 19) 3.0 3.5 4.0 v pif agc max. output v pima 1 (note 20) 8.0 8.4 8.6 v rf agc min. output v rfmi ? 2 10 mv rf agc max. output v rfma 1 (note 21) 7.7 8.0 8.3 v aft min. output v l 1 (note 22) 0.3 0.5 0.7 v aft max. output v h 1 (note 23) 8.3 8.5 8.7 v aft center voltage v cent 1 (note 24) 4.4 4.5 4.6 v aft sensitivity ? f / ? v 1 (note 25) 19 22 25 khz / v p pull-in range, upper 1 f ppu1 600 1200 ? p pull-in range, lower 1 f ppl1 600 1200 ? p pull-in range, upper 2 f ppu2 1000 1500 ? p pull-in range, lower 2 f ppl2 1 (note 26) 1000 1500 ? khz p vco control sensitivity p 1 (note 27) 2.5 3.7 5.0 mhz / v
TA8865BN 2001-02-21 14/27 sif circuit characteristic symbol test cir- cuit test condition min typ. max unit b / g v 1sbg f s = 5.5mhz (note 28) 109 112 115 1st sif output amplitude l v 1sl 1 f s = 6.5mhz (note 29) 107 110 113 dbv s fm input sensitivity v fin 1 (note 28) ? 40 45 dbv sif agc range r siag 1 (note 30) 55 60 ? db 1st sif output level for no input v no1s 1 (note 31) 3.7 4.0 4.3 v fm detection output v ofm 575 675 775 mv rms fm limiting sensitivity v lim 1 (note 32) ? 40 50 dbv am suppression ratio amr 1 (note 33) 45 52 ? db fm audio s / n no fm 1 (note 34) 60 67 ? db fm audio distortion dl fm 1 (note 35) ? 0.3 1.0 % + ? f g 70 100 ? detection band width upper detection band width lower ?? f g 1 (note 36) ? 100 ? khz am detection output vo am 450 525 600 mv rms am input sensitivity v ain ? 37 42 am maximum input v ainmax 1 (note 37) 100 107 112 dbv am output level for no input v noam 1 (note 38) 4.5 4.8 5.1 v am audio s / n no am 1 (note 39) 57 62 ? db am audio distortion dl am 1 (note 40) ? 0.7 1.7 % pull-in range, upper f spu 1000 1500 ? pull-in range, lower f spl 1 (note 41) 1000 1500 ? khz vco control sensitivity s 1 (note 42) 2.5 3.7 5.0 mhz / v 32f h vco stage characteristic symbol test cir- cuit test condition min typ. max unit free-run frequency f h 1 (note 43) 15.300 15.600 15.900 khz pull-in range, upper f hpu 500 750 ? pull-in range, lower f hpl 1 (note 44) 500 750 ? hz f vhi 500 800 ? frequency control range f vlo 1 (note 45) 500 800 ? hz frequency control sensitivity h 1 (note 46) 1.8 2.3 2.8 khz / v v hvin ? 80 100 mv sync detection level v hlin 1 (note 47) ? 25 35 dbv
TA8865BN 2001-02-21 15/27 coil adjustment procedure before making measurements, adjust all coils in accordance with the following procedure : 1. pif vco coil : set pin 34 (l / bg) to ground. input sig1 to tp8 (pif input). while observing tp1 (aft output), adjust the pif vco coil. find the area at which tp1 voltage changes abruptly. within this range, further adjust the pif vco coil until tp1 voltage reaches 4.5v area voltage. 2. sif vco coil : set voltage of pin 34 (l / bg) to 5v and pin 23 (mode sel) to ground. in no-input state, set tp5 (agc filter) to 3v, and measure the tp22 (s apc fil.) voltage (vp1). then remove 3v from tp5 and input sig2 to tp7 (b / g sif input). adjust the sif vco coil so that the tp21 voltage reaches vp1. 3. sif coil : set pin 35 to ground and input sig3 to tp20 (limiter input). then set the sound mute switch to open and measure the tp2 (audio output) voltage. adjust the sif coil so that the audio output dc voltage reaches 4.0v.
TA8865BN 2001-02-21 16/27 test condition note 1: b / g video output amplitude (1) set sw6 to a and sw3 to a, and input sig4 to tp8. (2)measure tp16 output amplitude. note 2: b / g input sensitivity (1) same as above. (2) gradually lower the input level, and measure the input level at which tp16 output amplitude reached ? 3db. the reference value (0db) is the tp16 signal amplitude when input signal amplitude is 90dbv. note 3: b / g maximum input (1) same as above. (2) gradually raise the input level, and measure the input level at which tp16 output amplitude reaches ? 0.5db. the reference value (0db) is the tp16 signal amplitude when input signal amplitude is 90dbv. note 4: b / g no-signal level (1) set sw6 to a and sw3 to a, with no input, apply 3v to tp10. (2) measure the tp16 dc voltage. note 5: b / g sync tip level (1) set sw6 to a and sw3 to a, and input sig4 to tp8. (2) measure the sync tip dc level of tp16. note 6: dg / dp (1) same as above. (2) measure dg and dp using a vector scope. note 7: video s / n ratio (1) set sw6 to a and sw3 to a, and input sig5 to tp8. (2) measure the tp16 output amplitude using an rms meter. (v s / n1 ) (3) input sig1 (non-modulation) to tp8 measure the tp16 output amplitude. (v s / n2 ) (4) determine the video s / n ratio using the following equation : [db] 6 ] rms [mv n2 / s v ] rms [mv n1 / s v og 20 v n / s note 8: carrier suppression ratio (1) set sw6 to a and sw3 to a, and input sig5 to tp8. (2) measure the output amplitude of tp16. (v cr1 ) [rms] (3) input sig1 (non-modulation) to tp8 using a spectrum analyzer, measure the 38.9mhz component of tp16 output. (v cr2 ) [rms] (4) determine the carrier suppression ratio using the following equation : [db] ] rms [mv cr2 v ] rms [mv cr1 v og 20 cr
TA8865BN 2001-02-21 17/27 note 9: 2nd harmonic suppression ratio (1) set sw6 to a and sw3 to a, and input sig5 to tp8. (2) measure the output amplitude of tp16. (v i1 ) [rms] (3) input sig1 (non-modulation) to tp8 using a spectrum analyzer, measure the 77.8mhz component of tp16 output. (v i2 ) [rms] (4) determine the 2nd harmonic suppression ratio using the following equation : [db] ] rms [mv i2 v ] rms [mv i1 v og 20 hr note 10: intermodulation (1) set sw6 to a and sw3 to a, input sig7 to tp8, and apply an external voltage to tp10. adjust dc voltage applied to tp10 so that output signal bottom level of tp16 reaches v syncb . (2) using a spectrum analyzer, measure the 1.07mhz component (v im ) [dbv], and 4.43mhz (v chr ) [dbv] component. (3) determine the intermodulation using following equation : im = v chr ? v im note 11: video frequency characteristic (1) set sw6 to a and sw3 to a, input sig5 to tp8, and set f2 to 37.9mhz. (2) while observing tp16, apply an external voltage to tp10. adjust dc voltage applied to tp10 so that bottom level of tp16 output signal reaches v syncb . (3) gradually lower f2 until the output amplitude of tp16 reaches ? 3db. the reference value (0db) is tp16 signal amplitude when f2 is 37.9mhz. the difference between f2 and f1 is fc. note 12: l-secam max. video output amplitude (1) apply 4.0v (sw5-a) to pin 35, set sw3 to a, and input sig8 to tp8. (2) measure the output amplitude of tp16. note 13: l-secam min. video output amplitude (1) apply 7.0v (sw6-b) to pin 35, set sw3 to a, and input sig8 to tp8. (2) measure the output amplitude of tp16. note 14: l input sensitivity (1) set to sw3-a and input sig8 tp8, and adjust pin 35 voltage using vr (sw6-b) so that output amplitude of tp16 is 2v p-p . (2) gradually lower the input level and measure the input level at which tp16 output amplitude reaches ? 3db. the reference value (0db) is the tp16 output amplitude when input signal amplitude is 90dbv.
TA8865BN 2001-02-21 18/27 note 15: l maximum input (1) same as above. (2) gradually raise the input level and measure the input level at which tp16 output amplitude reaches ? 0.5db.the reference value (0db) is the tp16 signal amplitude when input signal amplitude is 90dbv. note 16: l no-signal level (1) apply 3v to tp10 with no input, and measure the dc voltage on tp16. note 17: l sync tip level (1) set sw-3 to a and input sig8 to tp8, and adjust pin 35 voltage using vr (sw6-b) so (2) measure the sync tip dc level of the tp16 output. note 18: pif agc range (1) (pif agc range) = (b / g-maximum input) ? (b / g-input sensitivity) [db] note 19: pif agc min. output (1) set sw6 to a and sw3 to a, with no input to tp8. (2) measure tp10 voltage. note 20: pif agc max. output (1) set sw6 to a and sw3 to a, and input sig9 to tp8. (2) same as above. note 21: rf agc min. output (1) set sw6 to a and sw3 to a, and input sig9 to tp8. (2) adjust pin 35 (rf agc delay) voltage to 7.0v using vr. (3) measure tp21 voltage. note 22: rf agc max. output (1) set sw6 to a and sw3 to a, with no input to tp8. (2) adjust pin 35 (rf agc delay) voltage to 1.0v using vr. (3) measure tp21 voltage. note 23: aft min. output (1) set sw6 to a and sw3 to a, input sig10 to tp8, and set f0 to 39.4mhz. (2) measure tp1 voltage. note 24: aft max. output (1) set sw6 to a and sw3 to a, input sig10 to tp8, and set f0 to 38.5mhz. (2) measure tp1 voltage. (3) v cent is tp1 voltage with no input. note 25: aft sensitivity (1) set sw6 to a and sw3 to a, and input sig10 to tp8. (2) measure the input frequency (f af1) when tp1 reaches 3v and the input frequency when tp1 reaches 6v (f af2). (3) determine the aft sensitivity using the following equation : / v] [khz [v] 3.0 [khz] faf2) faf1 ( ? f / ? / ? f
TA8865BN 2001-02-21 19/27 note 26: pif vco pull-in range (1) same as above. (2) set tp17 (lock filter) to 2v and, while observing tp16 (video output), gradually decrease input frequency until pll locks. the difference between this frequency and 38.9mhz is f ppu1 . in the same way, gradually increase input frequency until pll locks. the difference between this frequency and 38.9mhz is f ppl1 . (3) set tp17 to 6v, and make the same measurement as in (2) above with f ppu2 and f ppl2 as the differences. note 27: pif vco control sensitivity (1) set sw6 to a and sw3 to a, with no input, apply 3v to tp10. (2) measure tp18 voltage (v p). (3) using a spectrum analyzer, measure the frequency of p-vco leaking to tp16. set the tp18 voltage to (v p+0.2v) and measure p-vco frequency (f 1), set the tp18 voltage to (v p ? 0.2v) and measure p-vco frequency (f 2). determine p using the following equation : / v] [mhz [mv] 400 [khz] | f | f | | p note 28: 1st sif output amplitude (bg), sif fm input sensitivity (1) set sw6 to a, input sig1 to tp8, and input sig16 to tp7. (2) measure tp19 output amplitude (v 1s ). (3) gradually lower the input level and measure the input level at which tp19 output amplitude reaches ? 6db. the reference value (0db) is the v 1s . note 29: 1st sif output amplitude (l) (1) apply 5v to pin 34 (sw6-b). input sig1 to tp8. input sig2 to tp7 (2) measure tp19 output amplitude (v 1sl ). note 30: sif agc range (1) (sif agc range) = 100 ? (s-fm input sensitivity) [db] note 31: 1st sif no-signal level (1) set sw6 to a, input sig1 to tp8, and no signal to tp7, apply 3v to tp5. (2) measure tp3 voltage. note 32: fm limiting sensitivity (1) set sw1 to b, sw2 to a and sw6 to a, input sig11 to tp20 (sw5-b), and set f0 to 6.0mhz. (2) measure tp3 output amplitude (v ofm [mv rms ]) (3) gradually lower the input level and measure the input level at which tp3 output amplitude v ofm reaches ? 6db. the reference value (0db) is the tp3 output amplitude when input signal amplitude is 110dbv.
TA8865BN 2001-02-21 20/27 note 33: am suppression ratio (1) set sw1 to b, sw2 to a and sw6 to a, and input sig11 to tp20 (sw5-b). (2) measure tp3 output amplitude (v amr). determine the am suppression ratio using the following equation. [db] ] rms [mv v amr ] rms [mv ofm v og 20 amr note 34: fm audio s / n (1) set sw1 to b, sw2 to a and sw6 to a, and input sig3 to tp20 (sw5-b). (2) measure tp3 output amplitude (v snf). determine the fm audio s / n using the following equation. [db] ] rms [mv snf v ] rms [mv ofm v og 20 fm no note 35: fm audio distortion (1) set sw1 to b, sw2 to a, sw2 to a and sw6 to a, input sig11 to tp20 (sw5-b), and set f0 to 6.0mhz. (2) measure distortion in tp3 output. note 36: detection band width (1) set sw1 to b, sw2 to a and sw6 to a, and input sig11 to tp20 (sw5-b). (2) gradually increase input frequency from 6.0mhz and measure the input frequency (+ ? fg) at which tp3 output amplitude reaches ? 3db. the reference value (0db) is the tp3 output amplitude when f0 is 6.0mhz. note 37: sif am detection output, input sensitivity and maximum input (1) set sw1 to b, sw2 to b, and sw4 to c, and apply pin 35 to 5v (sw6-b) and input sig13 to tp7. (2) measure the tp4 output amplitude (v oam ). (3) gradually lower the input level and measure the input level (v ain ) at which tp4 output amplitude reaches ? 3db. the reference value (0db) is the tp4 output amplitude when input signal amplitude is 90dbv. (4) gradually raise the input level and measure the input level (v ain max) at which tp4 output amplitude reaches ? 0.5db. the reference value (0db) is the tp4 output amplitude when input signal amplitude is 90dbv. note 38: am no-signal level (1) apply 5v to pin 35 (sw6-b), set sw2 to b and sw4 to c, and with no input, apply 3v to tp5. (2) measure tp2 dc voltage.
TA8865BN 2001-02-21 21/27 note 39: am audio s / n ratio (1) apply 5v to pin 35 (sw6-b), set sw2 to b and sw4 to c, and input sig2 to tp7. (2) measure tp4 output amplitude (v sna), and determine the am audio s / n using the following equation : [db] ] rms [mv snf v ] rms [mv oam v og 20 am no note 40: am audio distortion (1) apply 5v to pin 35 (sw6-b), set sw2 to b and sw4 to c, and input sig13 to tp7. (2) measure the distortion tp4 output. note 41: sif vco pull-in range (1) apply 5v to pin 35 (sw6-b), set sw2 to b and input sig7 to tp7. (2) while observing tp4, gradually decrease input frequency until pll locks. the difference between this frequency and 32.4mhz is f spu . in the same way, gradually increase input frequency until pll locks. the difference between this frequency and 32.4hmz is f spl . note 42: s vco control sensitivity (1) apply 5v to pin 35 (sw6-b), set sw2 to b and input sig7 to tp7. (2) measure tp22 voltage (v s). (3) using a spectrum analyzer, measure the frequency of s-vco leaking to tp2. set the tp22 voltage to (v s+0.2v) and measure s-vco frequency (f 3), set the tp22 voltage to (v s ? 0.2v) and measure s-vco frequency (f 4). determine s using the following equation : / v] [mhz [mv] 400 [khz] | 4 f 3 f | s note 43: h free-run frequency (1) set sw5 to b and with no input to tp15, measure tp12 voltage (v hf ). (2) input sig17 to tp15. changing input frequency and measure the input frequency at which tp12 voltage reaches v hf . note 44: h pull-in range (1) set sw3 to b, sw6 to a, input sig17 to sync input (tp15), and apply 9v to tp11. (2) while observing tp13, gradually decrease input frequency (f h ) until tp13 output voltage change from 9v to 0v. the difference between this frequency and 15.625khz is f hpu . (3) while observing tp13, gradually increase input frequency (f h ) until tp13 output voltage change from 9v to 0v. the difference between this frequency and 15.625khz is f hpl .
TA8865BN 2001-02-21 22/27 note 45: h frequency control range (1) apply 8.7v to pin 35 (sw6-a), set sw2 to b, apply 2v to tp17, v cc to tp with no input. (2) apply 8.5v to tp12, and measure the frequency of tp9 output. the difference between this frequency and 15.625khz is f vhi . (3) apply 6.5v to tp12, and measure the frequency of tp9 output. the difference between this frequency and 15.625khz is f vlo . note 46: h frequency control sensitivity (1) same as above. (2) measure tp12 voltage (v h) (3) set the tp12 voltage to (v h+0.2v) and measure the frequency of tp9 output (f 5) set the tp12 voltage to (v h ? 0.2v) and measure the frequency of tp9 output (f 6). determine h using the following equation : / v] [khz [mv] 400 [khz] | 6 f 5 f | h note 47: sync detection level (1) set sw3 to b sw6 to a, input sig17 to tp15, and set f h to 15.625khz. (2) gradually lower the input amplitude and measure the amplitude (v hvin ) at which tp13 voltage changes from 0v to 9v. (3) set sw3 to a and sw6 to a, and input sig4 to tp8. (4) gradually lower the input level and measure the level (v hlin ) at which tp13 output voltage changes from 0v to 9v.
TA8865BN 2001-02-21 23/27 sg input signal (terminating resistance : 50 ? ) sig1 f0 = 38.9mhz, 90dbv, cw sig2 f0 = 32.4mhz, 80dbv, cw sig3 f0 = 6.0mhz, 110dbv, cw sig4 f0 = 38.9mhz, 5-stair bar (v / s = 10 : 4), 87.5% am, 90dbv, sig5 f0 = 38.9mhz, fm = 15.63khz, 30% am, 90dbv sig6 f0 = 38.9mhz, fm = 15.63khz, 78% am, 90dbv sig7 f1 = 38.9mhz, 90dbv f2 = 34.47mhz, 80dbv mixed signal f2 = 33.4mhz, 80dbv sig8 f0 = 38.9mhz, 5-stair bar (v / s = 10 : 4), positive modulation 97% am, 90dbv sig9 f0 = 38.9mhz, fm = 15.63khz, 30% am, 110dbv sig10 f0 = 38.9mhz5mhz, 90dbv, cw sig11 f0 = 6.0mhz2mhz, fm = 400hz, 50khz / devi fm, 110dbv sig12 f0 = 6.0mhz, fm = 400hz, 30% am, 110dbv sig13 f0 = 32.4mhz, fm = 1khz, 80% am, 90dbv sig14 f0 = 32.4mhz5mhz, fm = 1khz, 80% am, 90dbv sig15 f1 = 38.9mhz, 90dbv f2 = 27.9~37.9mhz, 80dbv mixed signal sig16 f0 = 33.4mhz, 80dbv, cw sig17 fh = 15.625mhz2.0khz, amplitude 0.6v p-p , duty 90%
TA8865BN 2001-02-21 24/27 test circuit 1
TA8865BN 2001-02-21 25/27 application circuit
TA8865BN 2001-02-21 26/27 peripherals (1) tank coils pif vco coil: 292ges-6589bs (toko) sif vco coil: 292ges-6589bs (toko) fm coil : f292xns-3392bs (toko) (2) saw filters pif saw filters f1054e for b, g sif saw filters f328fm for d, k, l (3) ceramic resonators csb503f30 (murata mfg. co., ltd)
TA8865BN 2001-02-21 27/27 package dimensions weight: 2.98g (typ.)

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