CXA1702AR データシートの表示（PDF） - Sony Semiconductor

部品番号

コンポーネント説明

メーカー

CXA1702AR

4-channel REC/PB Amplifier for 8 mm VCR

Sony Semiconductor 

CXA1702AR

Pin

Symbol

No.

Pin voltage

DC

AC

21 XHRFSWP H: 2.3V

—

or more

L: 0.6V or

less input

Equivalent circuit

35µ

Description

Input pin for 1/2RFSWP signal.

21

140

2.15V

22 RFSWP H: 2.3V

—

or more

L: 0.6V or

less input

23 REC2B H: 2.3V

—

or more

L: 0.6V or

less input

24 REC2A H: 2.3V

—

or more

L: 0.6V or

less input

25 REC1B H: 2.3V

—

or more

L: 0.6V or

less input

26 VCC 4.75V

—

Same as for Pin 21

Same as for Pin 21

Same as for Pin 21

Same as for Pin 21

—

27 REC1A H: 2.3V

—

or more

L: 0.6V or

less input

28 RAMP H: 2.3V

—

or more

L: 0.6V or

less input

29 MTQ 1.8V to

—

4.75V

input

Same as for Pin 21

Same as for Pin 21

270

29

140 37.5k 12.5k

Input pin for RFSWP signal.

Goes L during recording and

turns on 2Bch recording amplifier

output bias current.

Goes L during recording and

turns on 2Ach recording amplifier

output bias current.

Goes L during recording and

turns on 1Bch recording amplifier

output bias current.

Power supply pin for main blocks

excluding recording and head

amplifiers.

Goes L during recording and

turns on 1Ach recording amplifier

output bias current.

Goes H during after-recording

and turns on recording amplifier

output bias current.

EVR adjusting pin for middle tune

Q. Increasing the input voltage

increases Q.

40µ

40µ

2.9V 1.8V

—6—

Share Link: