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TDA9874APS Datasheet(PDF) 7 Page - NXP Semiconductors |
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TDA9874APS Datasheet(HTML) 7 Page - NXP Semiconductors |
7 / 68 page 1999 Dec 03 7 Philips Semiconductors Preliminary specification Digital TV sound demodulator/decoder TDA9874A 5 PINNING SYMBOL PIN DESCRIPTION SDIP42 QFP44 EXTIR 1 39 external audio input right channel EXTIL 2 40 external audio input left channel Vref2 3 41 analog reference voltage for DAC and operational amplifiers P2 4 42 second general purpose I/O pin OUTM 5 43 analog output right VSSA4 6 44 analog ground supply 4 for analog back-end circuitry OUTL 7 1 analog output left OUTR 8 2 analog output right VDDA1 9 3 analog supply voltage 1; back-end circuitry 5 V VSSA1 10 4 analog ground supply 1; back-end circuitry VSSD1 11 5 digital ground supply 1; core circuitry VDDD1 12 6 digital supply voltage 1; core voltage regulator circuitry VSSD2 13 7 digital ground supply 2; core circuitry n.c. − 8 not connected TP2 14 9 additional test pin 2; connected to VSSD for normal operation NICAM 15 10 serial NICAM data output (at 728 kHz) TP1 16 11 additional test pin 1; connected to VSSD for normal operation PCLK 17 12 NICAM clock output (at 728 kHz) ADDR1 18 13 first I2C-bus slave address modifier input XTALO 19 14 crystal oscillator output XTALI 20 15 crystal oscillator input TP3 − 16 additional test pin 3; connected to VSSD for normal operation TEST2 21 17 test pin 2; connected to VSSD for normal operation Iref 22 18 resistor for reference current generation; front-end circuitry ADDR2 23 19 second I2C-bus slave address modifier input VSSA2 24 20 analog ground supply 2; analog front-end circuitry VDEC 25 21 analog front-end circuitry supply voltage decoupling TEST1 26 22 test pin 1; connected to VSSD for normal operation SIF2 27 23 sound IF input 2 Vref1 28 24 reference voltage; for analog front-end circuitry SIF1 29 25 sound IF input 1 CRESET 30 26 capacitor for Power-on reset VSSA3 31 27 digital ground supply 3; front-end circuitry VDDA3 32 28 analog front-end circuitry regulator supply voltage 3 (5 V) SCL 33 29 I2C-bus serial clock input SDA 34 30 I2C-bus serial data input/output SDO 35 31 I2S-bus serial data output WS 36 32 I2S-bus word select input/output |
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