TDA9875 Просмотр технического описания (PDF) - Philips Electronics

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производитель

TDA9875

Digital TV Sound Processor (DTVSP)

Philips Electronics 

Philips Semiconductors

Digital TV Sound Processor (DTVSP)

Preliminary specification

TDA9875

5 PINNING

SYMBOL

PCLK

NICAM

ADDR1

SCL

SDA

VSSA1

VDDA1

Iref

P1

SIF2

Vref1

SIF1

ADDR2

VSSD1

VDDD1

CRESET

XTALO

XTALI

Vtune

P2

SYSCLK

SCK

WS

SDO2

SDO1

SDI2

SDI1

TEST1

MONOIN

TEST2

EXTIR

EXTIL

SCIR1

SCIL1

VSSG

SCIR2

SCIL2

VDDA2

Vref(p)

Vref(n)

PIN

I/O

DESCRIPTION

1

O NICAM clock output at 728 kHz

2

O serial NICAM data output at 728 kHz

3

I first I2C-bus slave address modifier

4

I I2C-bus clock

5

I/O I2C-bus data

6

supply supply ground 1; analog front-end circuitry

7

supply analog supply voltage 1; analog front-end circuitry

8

− resistor for reference current generator; analog front-end circuitry

9

I/O first general purpose I/O pin

10

I sound IF input 2

11

− reference voltage; analog front-end circuitry

12

I sound IF input 1

13

I second I2C-bus slave address modifier

14 supply supply ground 1; digital circuitry

15 supply digital supply voltage 1; digital circuitry

16

− capacitor for power-on reset

17

O crystal oscillator output

18

I crystal oscillator input

19

O tuning voltage output for crystal oscillator

20

I/O second general purpose I/O pin

21

O system clock output

22

I/O I2S-bus clock

23

I/O I2S-bus word select

24

O I2S-bus data output 2

25

O I2S-bus data output 1

26

I I2S-bus data input 2

27

I I2S-bus data input 1

28

I first test pin; connected to VSSD1 for normal operation

29

I audio mono input

30

I second test pin; connected to VSSD1 for normal operation

31

I external audio input right channel

32

I external audio input left channel

33

I SCART 1 input right channel

34

I SCART 1 input left channel

35

− ground guards; audio analog-to-digital converter circuitry

36

I SCART 2 input right channel

37

I SCART 2 input left channel

38 supply analog supply voltage 2; audio analog-to-digital converter circuitry

39

− positive reference voltage; audio analog-to-digital converter circuitry

40

− reference voltage ground; audio analog-to-digital converter circuitry

1998 Feb 13

7

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