CXA1704R 查看數據表（PDF） - Sony Semiconductor

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CXA1704R

2-channel REC/PB Amplifier for 8mm VCR

Sony Semiconductor 

Pin No. Symbol Pin voltage

5 LOW LEVEL —

6

YIN

2.4 V

CXA1704R

Equivalent circuit

143

5

21k

90µ 90µ

40µ

143

6

Description

EVR adjustment of recording RF

signal level.

Gain is small when the applied

voltage is large.

Adjusts both the VIDEO path and

the PCM path simultaneously.

VIDEO path:

Adjustment of C + AFM + ATF

PCM path: Adjustment of ATF

Recording Y signal input.

Input the signal with capacitor

coupling.

Input level is 500 mVp-p (typ.).

7

YLEVEL

—

8 RFAGCOUT 2.8 V

143

7

23k

90µ 90µ

EVR adjustment of recording Y

signal level.

The Y LEVEL is small when the

applied voltage is large.

40µ

600µ

Playback Y signal output.

Output level is 380 mVp-p (typ.).

8

—4—

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