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SAA7128H

Digital video encoder

Philips Electronics 

Philips Semiconductors

Digital video encoder

Product specification

SAA7128H; SAA7129H

6 PINNING

SYMBOL PIN TYPE

DESCRIPTION

RES

1−

reserved pin; do not connect

SP

2I

test pin; connected to digital ground for normal operation

AP

3I

test pin; connected to digital ground for normal operation

LLC1

4I

line-locked clock input; this is the 27 MHz master clock

VSSD1

VDDD1

RCV1

5 supply digital ground 1

6 supply digital supply voltage 1

7 I/O raster control 1 for video port; this pin receives/provides a VS/FS/FSEQ signal

RCV2

8 I/O

raster control 2 for video port; this pin provides an HS pulse of programmable length or

receives an HS pulse

MP7

MP6

MP5

MP4

9I

10 I

11 I

12 I

double-speed 54 MHz MPEG port; it is an input for “ITU-R BT.656” style multiplexed

CB-Y-CR data; data is sampled on the rising and falling clock edge; data sampled on the

rising edge is then sent to the encoding part of the device; data sampled on the falling

edge is sent to the RGB part of the device (or vice versa, depending on programming)

MP3

13 I

MP2

14 I

MP1

15 I

MP0

16 I

VDDD2

VSSD2

RTCI

VDD(I2C)

SA

17 supply digital supply voltage 2

18 supply digital ground 2

19 I

real-time control input; if the LLC1 clock is provided by an SAA7111 or SAA7151B, RTCI

should be connected to the RTCO pin of the respective decoder to improve the signal

quality

20 supply sense input for I2C-bus voltage; connect to I2C-bus supply

21 I

select I2C-bus address; LOW selects slave address 88H, HIGH selects slave address

8CH

VSSA1

RED

C

22 supply analog ground 1 for RED (CR), C (CVBS) and GREEN (Y) outputs

23 O

analog output of RED (CR) signal

24 O

analog output of chrominance (CVBS) signal

VDDA1

GREEN

25 supply analog supply voltage 1 for RED (CR) and C (CVBS) outputs

26 O

analog output of GREEN (Y) signal

VBS

27 O

analog output of VBS (CVBS) signal

VDDA2

BLUE

CVBS

28 supply analog supply voltage 2 for VBS (CVBS) and GREEN (Y) outputs

29 O

analog output of BLUE (CB) signal

30 O

analog output of CVBS (CSYNC) signal

VDDA3

VSSA2

VSSA3

XTALO

31 supply analog supply voltage 3 for BLUE (CB) and CVBS (CSYNC) outputs

32 supply analog ground 2 for VBS (CVBS), BLUE (CB) and CVBS (CSYNC) outputs

33 supply analog ground 3 for the DAC reference ladder and the oscillator

34 O

crystal oscillator output

XTALI

35 I

crystal oscillator input; if the oscillator is not used, this pin should be connected to ground

VDDA4

36 supply analog supply voltage 4 for the DAC reference ladder and the oscillator

2000 Mar 08

6

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