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CXA1597M

Recording Equalizer Amplifier for Stereo Cassette Decks

Sony Semiconductor 

CXA1597M/P

Pin

No.

Symbol

Typical pin voltage

I/O Z (in)

DC AC

14 REC CAL 2.5V —

I 54k 14

15 REC MUTE —

—

I

—

15

Equivalent circuit

54k

30k

Description

2.5V

54k

DGND

∗ Recording level

calibration pin.

High =

Recording level

gain increased

Low =

Recording level

gain reduced

∗ Leave this pin

open when not

using the

recording level

calibration

function.

2.5V

54k

DGND

Recording mute

ON/OFF selection

pin.

∗ Recording mute

is controlled

with DC

voltages of 0 to

5V.

High =

Recording mute

OFF

Low =

Recording mute

ON

∗ Soft mute and

fader can be

switched over

by changing the

time constant of

the external

time constant

circuit.

16 Gp CAL

2.5V —

16

I 54kΩ

54k

2.5V

54k

DGND

High frequency

calibration pin.

∗ Controlled with

DC voltages of

0 to 5V

High = High

frequency level

gain increased

Low = High

frequency level

gain reduced

∗ Leave this pin

open when not

using the high

frequency

calibration

function.

–4–

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