BA7232 データシートの表示（PDF） - ROHM Semiconductor

部品番号

コンポーネント説明

メーカー

BA7232

Color TV signal encoder

ROHM Semiconductor 

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

75Ω driver.

•Applications

TV peripherals

•Features

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.

•Block diagram

5) Internal 75Ω driver. (outputs color TV signals, lumi-

nosity signals, chroma signals and analog RGB sig-

nals)

6) Adaptable for color subcarrier pulse input.

BIN 1

GIN 2

RIN 3

VCC1 4

SYNCIN 5

CLAMP

BFP

CLAMP

BFP

CLAMP

BFP

75Ω

20 BOUT

75Ω

19 GOUT

75Ω

18 ROUT

MATRIX

VCC

SYNC

17 VCC2

16 SYNCOUT

BFPIN 6

75Ω

15 YOUT

NT / PAL 7

SCIN 8

FILTER

14 N.C.

75Ω

13 VOUT

GND1 9 GND

COUT 10

75Ω

12 N.C.

GND 11 GND2

1

Share Link: