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componentes Descripción

Fabricante

SAA5284GP

Multimedia video data acquisition circuit

Philips Electronics 

Philips Semiconductors

Multimedia video data acquisition circuit

Objective specification

SAA5284

SYMBOL

PIN

OSCGND

9

SEL0

10

SEL1

11

BLACK

12

IREF

13

CVBS1

14

CVBS0

15

VDDA

16

VSSA

17

VSSD1

18

VSSD2

19

D7(1)

20

D6(1)

21

D5(1)

22

D4(1)

23

D3(1)

24

D2(1)

25

D1(1)

26

D0(1)

27

A0(1)

28

A1(1)

29

A2(1)

30

INT

31

RDY(1)

32

WR(1)

33

RD(1)

34

CS0

35

DMARQ

36

DMACK(1)

37

VPOIN0

38

VPOIN1

39

VSSD3

40

VDDD

41

LLC

42

LLC2

43

CS1

44

I/O

DESCRIPTION

−

oscillator ground

I

parallel interface format select 0

I

parallel interface format select 1

I/O

video black level storage; connected to VSSA via 100 nF capacitor

I

reference current input; connected to VSSA via 27 kΩ resistor

I

analog composite video input 1

I

analog composite video input 0

−

analog +5 V supply

−

analog ground supply

I

digital ground supply 1

I

digital ground supply 2

I/O

data bus 7/video data output 7

I/O

data bus 6/video data output 6

I/O

data bus 5/video data output 5

I/O

data bus 4/video data output 4

I/O

data bus 3/video data output 3

I/O

data bus 2/video data output 2

I/O

data bus 1/video data output 1

I/O

data bus 0/video data output 0

I

address input 0/video data input 7

I

address input 1/video data input 6

I

address input 2/video data input 5

O

interrupt request

O

ready/DTACK (data acknowledge)/VBI, open-drain

I

Intel bus Write/Motorola bus R/W/video data input 4

I

Intel bus Read/Motorola bus LDS/video data input 3

I

chip select 0; active LOW

O

DMA request

I

DMA acknowledge/video data input 2

I

video data input 0

I

video data input 1

−

digital ground supply 3

−

digital +5 V supply

I

full rate digital video clock input

I

half rate digital video clock input

I

chip select 1; active LOW

Note

1. These pins have two functions, depending on the interface mode.

1998 Feb 05

6

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