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d a t a sh eet preliminary speci?cation supersedes data of january 1993 file under integrated circuits, ic02 1995 mar 20 integrated circuits philips semiconductors TDA9845 tv and vtr stereo/dual sound processor with digital identification
1995 mar 20 2 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 features supply voltage 5 to 8 v source selector stereo matrix af input for mono source af outputs for main led operation mode indication (stereo and dual) high identification reliability. general description the TDA9845 is a stereo/dual sound processor for tv and vtr sets. its identification ensures safe operation by using internal digital pll technique with extremely small bandwidth, synchronous detection and digital integration (switching time maximum 2.1 s; identification concerning the main functions). quick reference data ordering information symbol parameter conditions min. typ. max. unit v p supply voltage (pin 18) 4.5 5 8.8 v i p supply current (pin 18) without led current 12 13 16.5 ma v i(rms) nominal input signal voltage (v i1 , v i2 , v i3 ) (rms value) 54% modulation b/g - 250 - mv l (only for v i1 ) - 500 - mv v o(rms) nominal output signal voltage (rms value) 54% modulation - 500 - mv v o(rms) clipping level of the output signal voltages (rms value) thd 1.5% v p = 5 v 1.4 1.6 - v v p = 8 v 2.4 2.65 - v i lon input current led on -- 12 ma v i pil input voltage sensitivity of pilot frequency unmodulated 5 - 100 mv s/n(w) weighted signal-to-noise ratio ccir468-3 6675 - db thd total harmonic distortion - 0.2 0.3 % t amb operating ambient temperature range 0 - +70 c f ident identi?cation window width stereo 2.2 - 2.2 hz dual 2.3 - 2.3 hz t ident on total identi?cation time on 0.35 - 2.1 s v i tuner identi?cation voltage sensitivity - 28 - db m v d f pil pull-in frequency range of pilot pll f w = 10.008 mhz lower side - 296 -- 296 hz upper side 302 - 302 hz type number package name description version TDA9845 dip20 plastic dual in-line package; 20 leads (300 mil) sot146-1 TDA9845t so20 plastic small outline package; 20 leads; body width 7.5 mm sot163-1
1995 mar 20 3 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 block diagrams fig.1 block diagram of the bipolar tv/vtr-stereo decoder. full pagewidth TDA9845 + + mute + digital pll oscillator v i 1 digital pll and demodulator digital pll and demodulator digital integrator digital integrator supply control logic 2 1 c1 14 15 11 12 main 500 mv rms 500 mv rms + w 5 k w 5 k 13 17 10 10 nf 10 nf 10 k w 10 k w 8 9 250 mv rms (am: 500 mv rms) 2.2 f 2.2 f 30 k w 47 pf 3.3 nf 2.5 mh 100 nf 10 f 10 nf 6 5 3 4 25 k w 25 k w v ref 19 7 18 16 100 m f/ 16 v 10 mhz dual bit stereo bit l r/b 250 mv rms l/a/mono 250 mv rms + 2.2 f 250 mv rms 250 mv rms c agc c lp c dcl v i pil c d1 c d2 1/2 v xtal c ref gnd leddu ledst p v i 2 v o 1 v i 3 v o 2 3 db v p c ref - 3 db 0 db a/mono 6 db 6 db w 50 k power-on reset l+r 2 , a r, b 0 db 15 k w 2.2 k w 2.2 k w 274 hz 117 hz 20 c2 c3 am - 6 db w 1 k v p stereo transmission dual transmission am 250 mv rms med644 - 1 15 k w 35 k w 35 k w - 6 db input and output levels are nominal values. they are related to the scart norm. (am: m = 0.54, fm: d f= 27 khz).
1995 mar 20 4 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 b ook, full pagewidth TDA9845 + + mute + digital pll oscillator v i 1 digital pll and demodulator digital pll and demodulator digital integrator digital integrator supply control logic 2 1 c1 14 15 11 12 main 500 mv rms 500 mv rms + w 5 k w 5 k 13 17 10 10 nf 10 nf 10 k w 10 k w 8 9 250 mv rms (am: 500 mv rms) 2.2 f 2.2 f 27 k w 180 pf 18 nf 2% 4.7 mh 5% 100 nf 10 f 10 nf 6 5 3 4 25 k w 25 k w v ref 19 7 18 16 100 f / 16 v 10 mhz dual bit stereo bit l r/b 250 mv rms l/a/mono 250 mv rms + 2.2 f 250 mv rms 250 mv rms c agc c lp c dcl v i pil c d1 c d2 1/2 v p v i 2 v o 1 v i 3 v o 2 3 db v p c xtal gnd ledst leddu ref - 3 db 0 db a/mono 6 db 6 db w 50 k power-on reset l+r 2 , a r, b 0 db 2.2 k w 2.2 k w 274 hz 117 hz 20 c2 c3 am - 6 db w 1 k v p stereo transmission dual transmission am 250 mv rms med645 - 1 15 k w 15 k w 35 k w 35 k w - 6 db the components of the external lc band-pass filter have the following order-no.: philips germany only no: 431202017525 or fastron sdn. bha., malaysia type smcc 472 j for l = 4.7 mhz ( 5%) philips components no: 2222 429 71802, c = 1.8 nf ( 2%) . fig.2 block diagram of the bipolar tv/vtr-stereo decoder with fixed coil (alignment-free). input and output levels are nominal values. they are related to the scart norm. (am: m = 0.54, fm: d f= 27 khz).
1995 mar 20 5 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 pinning symbol pin description c1 1 control input port c1 c2 2 control input port c2 c agc 3 agc capacitor of pilot frequency ampli?er c lp 4 identi?cation low-pass capacitor c dcl 5 dc loop capacitor v i pil 6 pilot frequency input voltage c ref 7 capacitor of reference voltage ( 1 2 v p ) v i1 8 af input signal voltage 1 (from sound carrier 1 or am sound (standard l) v i2 9 af input signal voltage 2 (from sound carrier 2) v i3 10 af input signal voltage 3 (mono sound) v o2 11 af output signal voltage 2 (main) v o1 12 af output signal voltage 1 (main) c d1 13 50 m s de-emphasis capacitor of af channel 1 leddu 14 led (dual) ledst 15 led (stereo) gnd 16 ground (0 v) c d2 17 50 m s de-emphasis capacitor of af channel 2 v p 18 supply voltage (+5 to +8 v) xtal 19 10 mhz crystal input c3 20 control input port c3 fig.3 pin configuration. lf page TDA9845 med646 1 2 3 4 5 6 7 8 9 10 c1 c2 c c c v c v v v 20 19 18 17 16 15 14 13 12 11 c3 xtal v c gnd ledst leddu c v v agc lp dcl i pil ref i 1 i 2 i 3 p d2 d1 o 1 o 2
1995 mar 20 6 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 functional description af signal handling the input af signals, derived from the two sound carriers, are processed in analog form using operational amplifiers. dematrixing uses the technique of two amplifiers processing the af signals. finally, a source selector provides the facility to route the mono signal through to the outputs (forced mono). de-emphasis is performed by two rc low-pass filter networks with internal resistors and external capacitors. this provides a frequency response with the tolerances given in fig.4. a source selector, controlled via the control input ports allows selection of the different modes of operation in accordance with the transmitted signal. the device was designed for a nominal input signal (fm: 54% modulation is equivalent to d f= 27 khz) of 250 mv rms (v i1 ,v i2 ) and for a nominal input signal (am: m = 0.54) of 500 mv rms (v i1 ), respectively 250 mv rms (v i3 ). a nominal gain of 6 db for v i1 and v i2 signals (0 db for v i1 signal (am sound)) and 6 db for v i3 signal is built-in. by using rail-to-rail operational amplifiers, the clipping level (thd 1.5%) is 1.60 v rms for v p = 5 v and 2.65 v rms for v p = 8 v at outputs v o1 , v o2 . care has been taken to minimize switching plops. also total harmonic distortion and random noise are considerably reduced. identi?cation the pilot signal is fed via an external rc high-pass filter and single tuned lc band-pass filter to the input of a gain controlled amplifier. the external lc band-pass filter in combination with the external rc high-pass filter should have a loaded q-factor of approximately 40 to 50 to ensure the highest identification sensitivity. by using a fixed coil ( 5%) to save the alignment (see fig.2), a q-factor of approximately 12 is proposed. this may cause a loss in sensitivity of approximately 2 to 3 db. a digital pll circuit generates a reference carrier, which is synchronized with the pilot carrier. this reference carrier and the gain controlled pilot signal are fed to the am-synchronous demodulator. the demodulator detects the identification signal, which is fed through a low-pass filter with external capacitor c lp (pin 4) to a schmitt-trigger for pulse shaping and suppression of low level spurious signal components. this is a measure against mis-identification. the identification signal is amplified and fed through an agc low-pass filter with external capacitor c agc (pin 3) to obtain the agc voltage for controlling the gain of the pilot signal amplifier. the identification stages consist of two digital pll circuits with digital synchronous demodulation and digital integrators to generate the stereo or dual sound identification bits which can be indicated via leds. a 10 mhz crystal oscillator provides the reference clock frequency. the corresponding detection bandwidth is larger than 50 hz for the pilot carrier signal, so that f p -variations from the transmitter can be tracked in the event of missing synchronization with the horizontal frequency f h . however the detection bandwidth for the identification signal is made small ( 1 hz) to reduce mis-identification. figure 2 shows an example of the alignment-free f p band-pass filter. to achieve the required q l of around 12, the q 0 at f p of the coil was chosen to be around 25 (effective q 0 including pcb influence). using coils with other q 0 , the rc-network (r fp , c fp ) has to be adapted accordingly. it is assumed that the loss factor tan d of the resonance capacitor is 0.01 at f p . copper areas under the coil might influence the loaded q and have to be taken into account. care has also to be taken in environments with strong magnetic fields when using coils without magnetic shielding. control input ports the complete ic is controlled by the three control input ports c1, c2 and c3 (ttl-level). with these ports the user can select between different af sources according to the transmitter status (see table 1). finally schmitt-triggers are added in the input port interfaces to suppress spikes from the control lines c1, c2 and c3. after a power-on reset, the logic is reset (mute mode for the af channel). after some time ( 1 ms), when the power-on reset is automatically deactivated, the switch position of the main channel is changed according to the control input port levels c1, c2 and c3. for standard l, the am sound is fed via the af input (v i1 ) to the two af outputs (v o1 ,v o2 ). this can also be achieved by feeding at af input v i3 . the logic level combination 111 of the control input ports (c3, c2 and c1) is not allowed (see table 1).
1995 mar 20 7 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 power supply the different supply voltages and currents required for the analog and digital circuits are derived from an internal band-gap reference circuit. the af reference voltage is 1 2 v p . for a fast setting to 1 2 v p an internal start-up circuit is added. a good ripple rejection is achieved with the external capacitor c ref = 100 m f/16 v in conjunction with the high ohmic input of the 1 2 v p pin (pin 7). no additional dc load on this pin is allowed. power-on reset when a power-on reset is activated by switching on the supply voltage or because of a supply voltage breakdown, the 117/274 hz dpll, the 117/274 hz integrator and the logic will be reset. the af channel (main) is muted ( 1 ms). esd protection all pins are esd protected. the protection circuits represent the latest state of the art. internal circuit the internal pin loading diagram is given in fig.7. limiting values in accordance with the absolute maximum rating system (iec 134). note 1. charge device model class a: discharging a 200 pf capacitor through a w series resistor. thermal characteristics symbol parameter conditions min. max. unit v p supply voltage (pin 18) - 0.3 10 v v i voltage at pins 1, 2 and 20 - 0.3 9.0 v v i voltage at pins 3 to 13, 17 and 19 - 0.3 v p v v i voltage at pins 14 and 15 - 0.3 10 v t stg storage temperature - 25 +150 c t amb operating ambient temperature 0 +70 c v esd electrostatic handling for all pins note 1 - 500 +500 v symbol parameter value unit r th j-a thermal resistance from junction to ambient in free air dip20 73 k/w so20 90 k/w
1995 mar 20 8 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 characteristics v p =5v; t amb = +25 c; nominal input signal v i1,2 = 0.25 v rms value (fm: 54% modulation is equivalent to d f= 27 khz); nominal input signal v i1 = 0.5 v rms value (am: m = 0.54); nominal input signal v i3 = 0.25 v rms value (am: m = 0.54); nominal output signal v o1,2 = 0.5 v rms value; f af = 1 khz; v i pil = 16 mv rms value; f pil = 54.6875 khz (identi?cation frequencies: stereo = 117.48 hz, dual = 274.12 hz), 50 m s pre-emphasis; noise measurement in accordance with ccir468-3 , working oscillator frequency f w = 10008 mhz; currents into the ic positive; measured in test circuit fig.5 unless otherwise speci?ed. symbol parameter conditions min. typ. max. unit supply v p supply voltage (pin 18) 4.5 5 8.8 v i p supply current (pin 18) without led current 12 13 16.5 ma p tot total power dissipation 54 65 145.2 mw v n(dc) dc voltage (pins 8 to 13 and 17) 1 2 v p - 0.1 1 2 v p 1 2 v p + 0.1 v v ref(dc) dc reference voltage (pin 7) 1 2 v p - 0.1 1 2 v p 1 2 v p + 0.1 v l l(dc) dc leakage current (pin 7) -- 1 m a af inputs; v i1 and v i2 (pins 8 and 9) v i(rms) nominal input signal voltage (rms value) 54% modulation b/g - 0.25 - v l (only v i1 ) - 0.5 - v v i(rms) clipping voltage level (rms value) thd 1.5% v p = 5 v; b/g 0.625 0.715 - v v p = 8 v; b/g 1.050 1.200 - v v p = 5 v; l (only v i1 ) 1.200 1.600 - v v p = 8 v; l (only v i1 ) 2.100 2.356 - v g v af signal voltage gain g = v o /v i ; note 1 b/g 567db l (only v i1 ) - 1 0 +1 db r i input resistance 40 50 60 k w r deem internal de-emphasis resistor (pins 13 and 17) see fig.4 4.25 5.0 5.75 k w additional af input pin (pin 10) v i(rms) nominal input signal voltage (rms value) 54% modulation - 0.25 - v v i(rms) clipping voltage level (rms value) thd 1.5% v p = 5 v 0.625 0.715 - v v p =8v 1.050 1.200 v g v af signal voltage gain g=v o /v i ; note 1 567db r i input resistance 40 50 60 k w
1995 mar 20 9 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 af outputs (pins 11 and 12) v o(rms) nominal output signal voltage (rms value) thd 0.3%; 54% modulation - 0.5 - v v o(rms) clipping voltage level (rms value) thd 1.5% v p = 5 v 1.4 1.6 - v v p = 8 v 2.4 2.65 - v r o output resistance 150 250 350 w c l load capacitor on output -- 1.5 nf r l load resistor on output (ac-coupled) 10 -- k w b frequency response (bandwidth) f i = 40 to 20000 hz; note 2 - 0.5 - +0.5 db b - 3db frequency response - 3 db; note 2 300 350 400 khz thd total harmonic distortion note 1 - 0.2 0.3 % s/n(w) weighted signal-to-noise ratio ccir468-3 (quasi-peak) 66 75 - db a cr crosstalk attenuation for notes 1 and 3 dual ? z s ? 1k w 70 75 - db stereo ? z s ? 1k w 40 45 - db a mute mute attenuation ? z s ? 1k w ; note 1 76 80 - db d v dc change of dc level output voltage between any two modes of operation after switching -- 10 mv psrr power supply ripple rejection f r = 70 hz; see fig.6 50 65 - db i o(dc) dc output current -- 20 m a 10 mhz crystal oscillator (pin 19) f r series resonant frequency of crystal (fundamental mode) c l = 20 pf 9.995 10.008 10.021 mhz f w working oscillator frequency (running in parallel resonance mode) over operating temperature range including ageing and in?uence of drive circuit 9.988 10.008 10.028 mhz r r equivalent crystal series resistance even at extremely low drive level ( < 1 pw) over operating temperature range with c 0 =6pf - 60 200 w r n crystal series resistance of unwanted mode 2 r r -- w c 0 crystal parallel capacitance with r r 2100 w- 610pf c 1 crystal motional capacitance - 25 50 ff p xtal level of drive in operation -- 5 m w v osc(p-p) oscillator operating voltage (peak-to-peak value) 500 550 600 mv symbol parameter conditions min. typ. max. unit
1995 mar 20 10 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 pilot processing v i pil(rms) pilot input voltage level at pin 6 (rms value) unmodulated 5 - 100 mv r i pil pilot input resistance 500 1000 - k w c i pil pilot input capacitance -- 3pf m modulation depth am 25 50 75 % d f pil pilot pll pull-in frequency range (referenced to f pil = 54.6875 khz) f w = 9.988 mhz lower side - 405 -- 405 hz upper side 192 - 192 hz f w = 10.008 mhz lower side - 296 -- 296 hz upper side 302 - 302 hz f w = 10.028 mhz lower side - 188 -- 188 hz upper side 411 - 411 hz t pil pilot pll pull-in time 0 - 1.7 ms f lp low-pass frequency response - 3 db 450 600 750 hz r 4 low-pass output resistance 18.75 25 31.25 k w v 4(rms) identi?cation threshold voltage (rms value) -- 70 mv q l loaded quality factor of resonance circuit high sensitivity; see fig.1 40 - 50 loaded quality factor of resonance circuit with ?xed coil sensitivity loss 2 to 3 db; see fig.2 - 12 - t acqui agc agc acquisition time v i pil(rms) switched from 0 to 100 mv rms value -- 0.1 s identi?cation (internal functions) v i tuner identi?cation voltage sensitivity note 4 - 28 - db m v c/n pilot carrier-to-noise ratio for start of identi?cation note 5 - 33 - db/hz h hysteresis note 4 -- 2db f det pull-in frequency range of identi?cation pll (referenced to f det stereo = 117.48 hz and f det dual = 274.12 hz) lower side stereo - 0.63 -- 0.63 hz dual - 0.69 -- 0.69 hz upper side stereo 0.63 - 0.63 hz dual 0.69 - 0.69 hz symbol parameter conditions min. typ. max. unit
1995 mar 20 11 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 notes 1. v o = 0.5 v rms value; f = 1 khz. 2. without de-emphasis capacitors with respect to nominal gain. 3. in dual mode: a (b)-signal into b (a) channel. in stereo mode: r-signal into left channel; l-signal = 0. 4. tuner input signal, measured with pcalh reference front end ( 1 2 emf, 75 w , 2t/20t/white bar, 100% video) and pc/sc 1 = 13 db; pc/sc 2 = 20 db. the pilot band-pass has to be aligned. 5. bandwidth of the pilot bp-filter b - 3db = 1.2 khz. v i2 input driven with identification-modulated pilot carrier and white noise. 6. identification window is defined as twice the pull-in frequency range (lower plus upper side) of identification pll (steady detection) plus window increase due to integrator (fluctuating detection). 7. the maximum total system identification time on is equal to t ident(on) plus t acqui agc . 8. the maximum total system identification time off is equal to t ident(off) . t det pull-in time of identi?cation pll (referenced to f det stereo = 117.48 hz and f det dual = 274.12 hz) stereo 0 - 0.8 s dual 0 - 0.8 s f ident identi?cation window frequency width (referenced to f det stereo = 117.48 hz and f det dual = 274.12 hz) stereo; note 6 2.2 - 2.2 hz dual; note 6 2.3 - 2.3 hz t integr integrator time constant 0.94 - 0.94 s t ident(on) total identi?cation time on stereo; note 7 0.35 - 2.0 s dual; note 7 0.35 - 2.0 s t ident(off) total identi?cation time off stereo; note 8 0.60 - 1.5 s dual; note 8 0.60 - 1.5 s led (pins 14 and 15) v l(off) output voltage led off -- 8.8 v v l(on) output voltage led on -- 0.7 v i l(off) input current led off -- 1 m a i l(on) input current led on -- 12 ma control input ports c1, c2 and c3 (pins 1, 2 and 20) v cl low level input voltage 0 - 0.8 v v ch high level input voltage 2.4 - 8.8 v i cl low level input current --- 1 m a i ch high level input current -- 1 m a symbol parameter conditions min. typ. max. unit
1995 mar 20 12 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 table 1 control input port matrix to select af inputs and af outputs notes 1. the combination 111 is not allowed . 2. in mute mode the content of the 117 hz/274 hz integrator will be reset. the leds are switched off. 3. the led show the identification status. 4. in external mode, in the combination 110 only the leds are switched off. input/output mode input signal output signal control input led st/ds/m ext main port (1) v i1 pin 8 v i2 pin 9 v i3 pin 10 v o1 pin 12 v o2 pin 11 c3 pin 20 c2 pin 2 c1 pin 1 dual pin 14 stereo pin 15 mute; note 2 - --- no signal 0 0 0 off off sound mute - --- no signal 1 0 0 note 3 note 3 mono m m -- m m 0 0 1 off off m -- m m 0 1 0 off off am -- am am 0 1 1 off off stereo st s r - l r 0 0 1 off on sr - s s 0 1 0 off on sr - s s 0 1 1 off on dual ds a b - a b 0 0 1 on off ab - a a 0 1 0 on off ab - b b 0 1 1 on off external; note 4 --- c c c 1 0 1 note 3 note 3 -- c c c 1 1 0 off off table 2 explanation of table 1 signal description r right l left s a and b dual sound a/b c external sound source am am sound (standard l) m mono sound ds dual sound st stereo sound lr + () 2 --------------------
1995 mar 20 13 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 fig.4 tolerance scheme of af frequency response; de-emphasis with c d1 , c d2 = 10 nf ( 5%), r internal =5k w ( 15%). - 2 + 1 + 2 - 1 10 5 med647 10 4 10 3 10 2 10 0 v oaf (db) f oaf (hz) r: - 15%; c: - 5% r: + 15%; c: + 5%
1995 mar 20 14 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 fig.5 test circuit of the stereo decoder TDA9845. handbook, full pagewidth med648 - 1 TDA9845 10 m f c agc 1 2 3 4 5 6 7 8 9 10 c1 c2 control input ports 3.3 nf 2.5 mh c lp c dcl 10 nf 100 nf 1/2 v p 3 x 2.2 m f 2.2 k w 2.2 k w 47 pf 30 k w v i 2 v i 1 v i 3 af from 5.5 mhz or from am demodulator (l) af from 5.742 mhz from external sound source 20 19 18 17 16 15 14 13 12 11 v o 2 v o 1 5% c d1 10 nf main 50 m s de-emphasis 1 k w v p stereo transmission dual transmission 50 m s de-emphasis 5% c d2 10 nf 10 m f c vp v p 10 mhz xtal c3 control input port fig.6 test circuit for measurement of ripple rejection. handbook, full pagewidth 100 f/ 16 v TDA9845 100 f 7 8 9 10 16 18 w 5 v modulated with 200 mv (p-p) 70 hz 100 f 10 k v b v p 11 12 measurements on outputs o 1 o 2 v v med650 - 1
1995 mar 20 15 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 internal circuitry fig.7 internal circuitry. handbook, full pagewidth w 2 k 25 k w 1 2 3 60 a 40 a 5 k w 5 k w 40 a 60 a 4 5 1/2 v p 1/2 v p 1/2 v p 1/2 v p 6 5 k w i 7 8 i b 9 i b 10 i b b w 2 k ? + w 5 k 3 pf 13 k w 20 19 18 ? + ? + w 5 k 17 16 ? + ? + 5 k w 15 200 a 200 a 14 13 12 11 TDA9845 af outputs af inputs v p gnd c1 c agc c lp c dcl c ref v i 1 v i 2 v i 3 v i pil leddu v o 1 v o 2 c d1 c d2 c3 xtal 25 k w 22.5 k w 25 k w 50 k w 50 k w 50 k w +5 v c2 ledst esd protection diode for pins 3 to 13, 17 and 19 zener diode protection for pins 1, 2, 14, 15, 18 and 20 v p 3 a w 2 k v p 3 a v p v p v p 3 a v p v p v p v p v p v p v p v p med649 - 1 5 k w 100 w 100 w
1995 mar 20 16 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 package outlines unit a max. 1 2 b 1 cd e e m h l references outline version european projection issue date iec jedec eiaj mm inches dimensions (inch dimensions are derived from the original mm dimensions) sot146-1 92-11-17 95-05-24 a min. a max. b z max. w m e e 1 1.73 1.30 0.53 0.38 0.36 0.23 26.92 26.54 6.40 6.22 3.60 3.05 0.254 2.54 7.62 8.25 7.80 10.0 8.3 2.0 4.2 0.51 3.2 0.068 0.051 0.021 0.015 0.014 0.009 1.060 1.045 0.25 0.24 0.14 0.12 0.01 0.10 0.30 0.32 0.31 0.39 0.33 0.078 0.17 0.020 0.13 sc603 m h c (e ) 1 m e a l seating plane a 1 w m b 1 e d a 2 z 20 1 11 10 b e pin 1 index 0 5 10 mm scale note 1. plastic or metal protrusions of 0.25 mm maximum per side are not included. (1) (1) (1) dip20: plastic dual in-line package; 20 leads (300 mil) sot146-1
1995 mar 20 17 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 unit a max. a 1 a 2 a 3 b p cd (1) e (1) (1) eh e ll p q z y w v q references outline version european projection issue date iec jedec eiaj mm inches 2.65 0.30 0.10 2.45 2.25 0.49 0.36 0.32 0.23 13.0 12.6 7.6 7.4 1.27 10.65 10.00 1.1 1.0 0.9 0.4 8 0 o o 0.25 0.1 dimensions (inch dimensions are derived from the original mm dimensions) note 1. plastic or metal protrusions of 0.15 mm maximum per side are not included. 1.1 0.4 sot163-1 92-11-17 95-01-24 10 20 w m b p detail x z e 11 1 d y 0.25 075e04 ms-013ac pin 1 index 0.10 0.012 0.004 0.096 0.089 0.019 0.014 0.013 0.009 0.51 0.49 0.30 0.29 0.050 1.4 0.055 0.42 0.39 0.043 0.039 0.035 0.016 0.01 0.25 0.01 0.004 0.043 0.016 0.01 0 5 10 mm scale x q a a 1 a 2 h e l p q e c l v m a (a ) 3 a so20: plastic small outline package; 20 leads; body width 7.5 mm sot163-1
1995 mar 20 18 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 soldering plastic dual in-line packages b y dip or wave the maximum permissible temperature of the solder is 260 c; this temperature must not be in contact with the joint for more than 5 s. the total contact time of successive solder waves must not exceed 5 s. the device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified storage maximum. if the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. r epairing soldered joints apply a low voltage soldering iron below the seating plane (or not more than 2 mm above it). if its temperature is below 300 c, it must not be in contact for more than 10 s; if between 300 and 400 c, for not more than 5 s. plastic small outline packages b ywave during placement and before soldering, the component must be fixed with a droplet of adhesive. after curing the adhesive, the component can be soldered. the adhesive can be applied by screen printing, pin transfer or syringe dispensing. maximum permissible solder temperature is 260 c, and maximum duration of package immersion in solder bath is 10 s, if allowed to cool to less than 150 c within 6 s. typical dwell time is 4 s at 250 c. a modified wave soldering technique is recommended using two solder waves (dual-wave), in which a turbulent wave with high upward pressure is followed by a smooth laminar wave. using a mildly-activated flux eliminates the need for removal of corrosive residues in most applications. b y solder paste reflow reflow soldering requires the solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the substrate by screen printing, stencilling or pressure-syringe dispensing before device placement. several techniques exist for reflowing; for example, thermal conduction by heated belt, infrared, and vapour-phase reflow. dwell times vary between 50 and 300 s according to method. typical reflow temperatures range from 215 to 250 c. preheating is necessary to dry the paste and evaporate the binding agent. preheating duration: 45 min at 45 c. r epairing soldered joints ( by hand - held soldering iron 4 or pulse - heated solder tool ) fix the component by first soldering two, diagonally opposite, end pins. apply the heating tool to the flat part of the pin only. contact time must be limited to 10 s at up to 300 c. when using proper tools, all other pins can be soldered in one operation within 2 to 5 s at between 270 and 320 c. (pulse-heated soldering is not recommended for so packages.) for pulse-heated solder tool (resistance) soldering of vso packages, solder is applied to the substrate by dipping or by an extra thick tin/lead plating before package placement.
1995 mar 20 19 philips semiconductors preliminary speci?cation tv and vtr stereo/dual sound processor with digital identi?cation TDA9845 definitions life support applications these products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify philips for any damages resulting from such improper use or sale. data sheet status objective speci?cation this data sheet contains target or goal speci?cations for product development. preliminary speci?cation this data sheet contains preliminary data; supplementary data may be published later. product speci?cation this data sheet contains ?nal product speci?cations. limiting values limiting values given are in accordance with the absolute maximum rating system (iec 134). stress above one or more of the limiting values may cause permanent damage to the device. these are stress ratings only and operation of the device at these or at any other conditions above those given in the characteristics sections of the speci?cation is not implied. exposure to limiting values for extended periods may affect device reliability. application information where application information is given, it is advisory and does not form part of the speci?cation.
philips semiconductors C a worldwide company argentina: ierod, av. juramento 1992 - 14.b, (1428) buenos aires, tel. (541)786 7633, fax. (541)786 9367 australia: 34 waterloo road, north ryde, nsw 2113, tel. (02)805 4455, fax. (02)805 4466 austria: triester str. 64, a-1101 wien, p.o. box 213, tel. (01)60 101-1236, fax. (01)60 101-1211 belgium: postbus 90050, 5600 pb eindhoven, the netherlands, tel. (31)40 783 749, fax. (31)40 788 399 brazil: rua do rocio 220 - 5 th floor, suite 51, cep: 04552-903-s?o paulo-sp, brazil. p.o. box 7383 (01064-970), tel. (011)821-2333, fax. (011)829-1849 canada: philips semiconductors/components: tel. (800) 234-7381, fax. (708) 296-8556 chile: av. santa maria 0760, santiago, tel. (02)773 816, fax. (02)777 6730 colombia: iprelenso ltda, carrera 21 no. 56-17, 77621 bogota, tel. (571)249 7624/(571)217 4609, fax. (571)217 4549 denmark: prags boulevard 80, pb 1919, dk-2300 copenhagen s, tel. (032)88 2636, fax. (031)57 1949 finland: sinikalliontie 3, fin-02630 espoo, tel. (9)0-50261, fax. (9)0-520971 france: 4 rue du port-aux-vins, bp317, 92156 suresnes cedex, tel. (01)4099 6161, fax. (01)4099 6427 germany: p.o. box 10 63 23, 20043 hamburg, tel. (040)3296-0, fax. (040)3296 213. greece: no. 15, 25th march street, gr 17778 tavros, tel. (01)4894 339/4894 911, fax. (01)4814 240 hong kong: philips hong kong ltd., 15/f philips ind. bldg., 24-28 kung yip st., kwai chung, n.t., tel. (852)424 5121, fax. (852)480 6960/480 6009 india: philips india ltd, shivsagar estate, a block , dr. annie besant rd. worli, bombay 400 018 tel. (022)4938 541, fax. (022)4938 722 indonesia: philips house, jalan h.r. rasuna said kav. 3-4, p.o. box 4252, jakarta 12950, tel. (021)5201 122, fax. (021)5205 189 ireland: newstead, clonskeagh, dublin 14, tel. (01)7640 000, fax. (01)7640 200 italy: philips semiconductors s.r.l., piazza iv novembre 3, 20124 milano, tel. (0039)2 6752 2531, fax. (0039)2 6752 2557 japan: philips bldg 13-37, kohnan 2 -chome, minato-ku, tokyo 108, tel. (03)3740 5028, fax. (03)3740 0580 korea: (republic of) philips house, 260-199 itaewon-dong, yongsan-ku, seoul, tel. (02)794-5011, fax. (02)798-8022 malaysia: no. 76 jalan universiti, 46200 petaling jaya, selangor, tel. (03)750 5214, fax. (03)757 4880 mexico: 5900 gateway east, suite 200, el paso, tx 79905, tel. 9-5(800)234-7381, fax. (708)296-8556 netherlands: postbus 90050, 5600 pb eindhoven, bldg. vb tel. (040)783749, fax. (040)788399 new zealand: 2 wagener place, c.p.o. box 1041, auckland, tel. (09)849-4160, fax. (09)849-7811 norway: box 1, manglerud 0612, oslo, tel. (022)74 8000, fax. (022)74 8341 pakistan: philips electrical industries of pakistan ltd., exchange bldg. st-2/a, block 9, kda scheme 5, clifton, karachi 75600, tel. (021)587 4641-49, fax. (021)577035/5874546 philippines: philips semiconductors philippines inc, 106 valero st. salcedo village, p.o. box 2108 mcc, makati, metro manila, tel. (02)810 0161, fax. (02)817 3474 portugal: philips portuguesa, s.a., rua dr. antnio loureiro borges 5, arquiparque - miraflores, apartado 300, 2795 linda-a-velha, tel. (01)4163160/4163333, fax. (01)4163174/4163366 singapore: lorong 1, toa payoh, singapore 1231, tel. (65)350 2000, fax. (65)251 6500 south africa: s.a. philips pty ltd., 195-215 main road martindale, 2092 johannesburg, p.o. box 7430, johannesburg 2000, tel. (011)470-5911, fax. (011)470-5494. spain: balmes 22, 08007 barcelona, tel. (03)301 6312, fax. (03)301 42 43 sweden: kottbygatan 7, akalla. s-164 85 stockholm, tel. (0)8-632 2000, fax. (0)8-632 2745 switzerland: allmendstrasse 140, ch-8027 zrich, tel. (01)488 2211, fax. (01)481 77 30 taiwan: philips taiwan ltd., 23-30f, 66, chung hsiao west road, sec. 1. taipeh, taiwan roc, p.o. box 22978, taipei 100, tel. (02)388 7666, fax. (02)382 4382 thailand: philips electronics (thailand) ltd., 209/2 sanpavuth-bangna road prakanong, bangkok 10260, thailand, tel. (662)398-0141, fax. (662)398-3319 turkey: talatpasa cad. no. 5, 80640 gltepe/istanbul, tel. (0 212)279 27 70, fax. (0212)282 67 07 united kingdom: philips semiconductors ltd., 276 bath road, hayes, middlesex ub3 5bx, tel. (0181)730-5000, fax. (0181)754-8421 united states: 811 east arques avenue, sunnyvale, ca 94088-3409, tel. (800)234-7381, fax. (708)296-8556 uruguay: coronel mora 433, montevideo, tel. (02)70-4044, fax. (02)92 0601 internet: http://www.semiconductors.philips.com/ps/ for all other countries apply to: philips semiconductors, international marketing and sales, building be-p, p.o. box 218, 5600 md eindhoven, the netherlands, telex 35000 phtcnl, fax. +31-40-724825 scd39 ? philips electronics n.v. 1995 all rights are reserved. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. no liability will be accepted by the publisher for any consequence of its use. publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. philips semiconductors printed in the netherlands 533061/50/02/pp20 date of release: 1995 mar 20 document order number: 9397 750 00107

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