CXA1202Q-Z View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXA1202Q-Z

REC/PB Amplifier for VCR

Sony Semiconductor 

CXA1202Q-Z/CXA1202R

No. Symbol

Voltage

I/O

DC

AC resistance

4.25V

9 AGC TC (Load: —

—

150kΩ

Equivalent circuit

VCC

500

200

9

200

Description

Pin to apply time constant of

envelope detection for RF AGC.

Optimum load resistance across

Vcc is 150kΩ.

10 AGC OUT

2.5V

100

mVp-p

Emitter

follower

(IE = 1mA)

10

GND

VCC

200

17

AGC output pin for PB VIDEO

signal (Max. gain of AGC AMP is

about 7dB).

1mA

11 HCHG

—

(Open: —

"L")

50kΩ

50k

11

GND

VCC

Control signal input pin for RF SW

switching:

High (over 3V): selects RF IN A

Low (under 0.3V):

selects RF IN B

GND

VCC

150

12

12 RF IN A

2.5V

100

mVp-p

—

20k

Input pin for RF switch and 12dB

AMP.

5

13

DOC

PULSE

14 RF IN B

15 DOC TC

H: 3.2V

L: 0V

—

Emitter

follower

(H: IE =

1mA)

2.5V

100

mVp-p

20kΩ

2.5V —

—

GND

VCC

100

80k 3.5k

13

GND

Same as for Pin No. 12

VCC

90

15

8k 3.3k

Dropout detection signal output

pin; High upon dropout.

Input pin for RF switch and 12dB

AMP.

Pin to connect time constant of

dropout detection.

GND

–4–

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