CXA1797 Просмотр технического описания (PDF) - Sony Semiconductor

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CXA1797

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

Sony Semiconductor 

CXA1797Q

Pin Description

Pin

Symbol

No.

(Ta = 25°C, dual-power supply configuration, VCC = 5.5 V, VEE = 5.5 V, DVCC = 5.0 V)

Typical pin voltage

I/O Z (in)

DC AC

Equivalent circuit

Description

VCC

1 BUFFER OUT1

0.0V –10dBv O —

51 BUFFER OUT2

6.5k

VEE

Recording volume

147

input buffer output

VCC

2 VOLUME OUT1

0.0V –10dBv O —

50 VOLUME OUT2

VEE

6.5k

147

Recording volume

output

3 REC IN1

49 REC IN2

–26dBv

0.0V

I 40kΩ

(–25dBm)

147

VCC

VCT

Recording input

VEE

4 DOLBY TCH 1 VEE

———

48 DOLBY TCH2 +0.4V

147

—4—

VCC

Time constant for

the HLS

VEE

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