BA7207

更新时间： 2024-11-18 22:39:23

品牌	Logo	应用领域
罗姆 - ROHM		录像机
页数	文件大小	规格书
17页	250K
描述
SECAM chroma signal processor for VHS VCRs

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数据手册

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BA7207 数据手册

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.

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

SECAM chroma for the PB / REC system output.

2) Built-in chroma killer circuit.

Absolute maximum ratings (Ta = 25°C)

•

Parameter

Symbol

V^CC

Limits

Unit

Power supply voltage

BA7207AS

BA7207AK

BA7207AS

BA7207AK

1400 (SDIP32)

850 (QFP44)

– 25 ~ + 75

Power dissipation

Operating temperature

Storage temperature

Topr

Tstg

°C

– 25 ~ + 65

– 55 ~ + 125

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

Operating power supply voltage

Symbol

V^CC

Min.

4.5

Typ.

5.0

Max.

5.5

Unit

12 3 4 5 6 7...17

中文翻译

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