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Multimedia ICs

Color TV Signal Encoder

BA7232FS

The BA7232FS converts analog RGB signals into color TV signals in the NTSC and PAL formats. From inputs of

analog RGB signals, a composite synch signal, burst pulses and a color carrier, this IC generates a color TV signal,

and can be adapted for either NTSC or PAL standards, which are selected externally. When set to PAL, the

BA7232FS changes chroma phase according to the burst flag pulses.

The chroma signals and luminosity signals can be combined into a color TV signal or output separately, making this

IC suitable for S pins. Also, this IC comes with an output pin for the analog RGB signal. Each output has a built-in

75

Ω driver.

TV peripherals

1) Can be adapted for NTSC and PAL formats.

2) Internal flip-flop for PAL phase switching.

3) Separate Y / C output pins.

4) Analog RGB signal output pins.

5) Internal 75

Ω driver. (outputs color TV signals, lumi-

nosity signals, chroma signals and analog RGB sig-

nals)

6) Adaptable for color subcarrier pulse input.

1

BIN

2

GIN

3

RIN

4

5

SYNCIN

6

BFPIN

7

NT / PAL

8

SCIN

9

GND1

10

COUT

20

BOUT

19

GOUT

18

ROUT

17

16

SYNCOUT

15

YOUT

14

N.C.

13

VOUT

12

N.C.

11

GND2

GND

GND

FILTER

BFP

BFP

BFP

MATRIX

SYNC

75

Ω

75

Ω

75

Ω

75

Ω

75

Ω

75

Ω

CLAMP

CLAMP

CLAMP