CXA1202R 查看數據表（PDF） - Sony Semiconductor

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CXA1202R

REC/PB Amplifier for VCR

Sony Semiconductor 

CXA1202Q-Z/CXA1202R

No. Symbol

Voltage

I/O

DC

AC resistance

Equivalent circuit

31 PB IN 2N 2.4V — 1.3kΩ Same as for Pin No. 30

32 PB IN 2P

2.4V

90 to

900

µVp-p

33

REC2 OUT 15mA

13

mAp-p

1.3kΩ

34 Vcc 2CH 5.0V —

—

Same as for Pin No. 29

Same as for Pin No. 28

—

35 MT Q

2.5V —

—

Same as for Pin No. 26

36 REC2 IN

1.8V

92µA

(Y signal)

~– 0

Same as for Pin No. 25

37 MIX2 OUT

2.5V

203

mVp-p

Emitter

follower

(IE = 1mA)

—

(2.5V

38 MT 2

at

—

OPEN

100kΩ

of pin)

Same as for Pin No. 24

Same as for Pin No. 23

—

39 RF SWP (Open: —

"L")

40kΩ

Same as for Pin No. 1

40 GND 2CH 0V

—

—

—

—

41 PCM SEL (Open: —

"L")

40kΩ

Same as for Pin No. 1

—

(2.1V

42 ME LEVEL at

—

OPEN

of pin)

100kΩ

2.1V

18k

24k

VCC

42

76k

GND

Description

CH2 Head AMP Inverter phase

input pin (decoupling with

capacitance).

CH2 Head AMP positive phase

input pin (PB signal input pin).

CH2 REC AMP output pin.

Power supply pin for CH2 REC

AMP and CH2 Head AMP.

Q adjusting pin for medium range

frequency compensation circuit.

Controls Q through current value

by connecting resistance between

GNDs; Mutually effected by MT

Fφ. Do not connect capacitance.

CH2 REC AMP input pin.

Mix circuit output pin for CH2.

Boost level adjusting pin for CH2

medium range frequency

compensation circuit; variable

between 0 and +12dB at 4.2 to 0.8V.

RF switching pulse input pin for

CH switchover.

GND pin for CH2 REC AMP and

CH2 head AMP.

PCM AREA input pin;

High: PCM REC period

During High period after recording,

MUTE is applied to PB VIDEO

output.

Level of low range REC signals

(Chroma, AFM, ATF rec. with

VIDEO) can be boosted by 0 to

3dB by voltage (0 to 5V) applied

to this pin.

–7–

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