CXA1704R 查看數據表（PDF） - Sony Semiconductor

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CXA1704R

2-channel REC/PB Amplifier for 8mm VCR

Sony Semiconductor 

CXA1704R

Pin No. Symbol Pin voltage

9

RFAGCTC

—

Equivalent circuit

Description

RF AGC time constant.

143

9

25µ 25µ 25µ

10 RFAGCIN

—

11

DOCDET

2.5 V

13p 143

10

50µ

143

11

50µ

RF AGC input of playback Y level.

The playback video signal output

from Pin 14 (MTOUT) passes

through an external ATF TRAP,

AFM TRAP, and C TRAP, and is

then input to Pin 10 (RFAGCIN)

again.

DC is cut off by internal capacitor.

When not used, connect this pin to

Vcc.

Determines the dropout detection

level.

12

DOP

H: 3.1 V

L: 0 V

Dropout detection signal output.

Goes high when a dropout is

detected.

12

—5—

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