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CXA1797

Dolby B-C Type Noise Reduction System with Recording Equalizer Amplifier

Sony Semiconductor 

CXA1797Q

Pin

Typical pin voltage

Symbol

I/O Z (in)

No.

DC AC

20 VEE

32 VCC

–5.5V

—I—

+5.5V

21 XRESET

22 LATCH

23 CLK

—

—I—

Equivalent circuit

Description

Negative power

supply (Connect to

ground when using

a single power

supply)

Positive power

supply

2k

DGND

VCC

2.5V

DGND

reference

Reset signal input

(active low)

Load signal input

Clock input

VEE

VCC

24 DATA

25 DGND

—

—I—

0V

—I—

4k

DGND

2.5V

DGND

reference

Data input

VEE

Logic and CAL

reference

VCC

26 REC LEVEL

0V

— I 100kΩ

147

DGND

VEE

Recording volume

adjustment

—8—

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