CXA1737R 데이터 시트보기 (PDF) - Sony Semiconductor

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CXA1737R

AFM Stereo Signal Processor for 8 mm VCR

Sony Semiconductor 

CXA1737R

Pin

No.

Symbol

Pin voltage

DC

AC

Equivalent circuit

Description

27 MUTETC

2.43V

—

27

Time constant pin for

during DOC

0.6µ

determining the MUTE OFF

VCC1 delay time.

MUTE ON when drop out (T)

1k

during DOC

2.5µ

continues approximately 1ms

(during 680pF externally).

10k

10µ

Pin 22 input

GND Pin 27

T

VTH

MUTE ON

28 NTSC/ PAL —

—

28

50k

VCC1

40µ

NTSC/PAL switching pin

during parallel mode.

L (0 to 1V)

PAL

1.5V

GND

H (2V to VCC)

NTSC

29 FSCIN

1.68V

Reference 29

input

200mVp-p

147

40k

VCC – 1.4V

VCC2

20µ

GND

fsc input pin.

The input level is

approximately 200mVp-p.

During NTSC: 3.579545MHz

During PAL: 4.433619MHz

30 NC

—

—

—

31 RFSWP

31

—

Reference

input

30Hz

147 50k

110k

VCC1

RFSWP input pin.

1.2V

GND

H (2V to Vcc)

L (0 to 1V)

30Hz

– 10 –

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