BA7207AK View Datasheet(PDF) - ROHM Semiconductor

Part Name

Description

Manufacturer

BA7207AK

SECAM chroma signal processor for VHS VCRs

ROHM Semiconductor 

Video ICs

SECAM chroma signal processor for

VHS VCRs

BA7207AS / BA7207AK

The BA7207AS and BA7207AK are LSI components that incorporate the contain circuitry required for SECAM chro-

ma signal processing. The ICs have both recording and playback systems and each includes a bell filter, a band-

pass filter, a limiter amplifier, a multiply-by-four circuit, a divide-by-four circuit, and a sync-gate circuit.

•Applications

SECAM and VHS format video cassette recorders and

camcorders

•Features

1) All filters required for SECAM chroma signal pro-

cessing are provided.

2) Built-in chroma killer circuit.

3) Built-in switch circuit for selecting PAL chroma or

SECAM chroma for the PB / REC system output.

•Absolute maximum ratings (Ta = 25°C)

Parameter

Symbol

Limits

Unit

Power supply voltage

VCC

Power dissipation

BA7207AS

Pd

BA7207AK

7

V

1400 (SDIP32)∗1

mW

850 (QFP44)∗2

Operating temperature BA7207AS Topr

– 25 ~ + 75

°C

BA7207AK

– 25 ~ + 65

Storage temperature

Tstg

– 55 ~ + 125

°C

∗1 Reduced by 14mW for each increase in Ta of 1°C over 25°C .

∗2 When mounted on a 70mm × 70mm, t = 1.6mm glass epoxy board, reduced by 8.5W for each

increase in Ta of 1°C over 25°C.

•Recommended operating conditions (Ta = 25°C)

Parameter

Symbol Min. Typ. Max.

Unit

Operating power supply voltage VCC

4.5

5.0

5.5

V

1

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