CXA1702AR 查看數據表（PDF） - Sony Semiconductor

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CXA1702AR

4-channel REC/PB Amplifier for 8 mm VCR

Sony Semiconductor 

Pin

Symbol

No.

52 VREG

Pin voltage

DC

AC

4.15V

—

CXA1702AR

Equivalent circuit

52

Description

Output pin for 4.15 V regulator.

Connect decoupling capacitance

between this pin and GND. Up to

0.5 mA current can be led outside

IC.

53 VPPCMIN

2.45V

200mVp-p

(recording

PCM

signal)

input

20µ

53

140

50K

2.45V

40µ

VPSW input pin for recording

PCM path. Input Pin 54

(RECPCM) signal after cutting

DC component with external

capacitance.

54 RECPCM 2.4V 200mVp-p

(recording

25µ

PCM

signal)

output

8K

220µ

180µ

55 VPVTRIN

2.45V

200mVp-p Same as for Pin 53.

(recording

Y signal)

input

56 RECVTR 2.4V 200mVp-p

40µ

(recording

Y signal)

output

57 GND

0V

—

8K

220µ

300µ

—

Output pin for recording PCM

path. Outputs signal obtained by

mixing recording PCM signal and

recording ATF signal.

54

VPSW input pin for recording

video path. Input Pin 56

(RECVTR) signal after cutting DC

component with external

capacitance.

Output pin for recording video

path. Outputs signal obtained by

mixing recording Y signal,

recording chroma signal,

56

recording AFM signal and

recording ATF signal.

GND pin for main blocks

excluding recording and head

amplifiers.

—9—

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