CXA1821M 데이터 시트보기 (PDF) - Sony Semiconductor

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CXA1821M

RF Amplifier for CD Players

Sony Semiconductor 

CXA1821M

Center Voltage Generation Circuit

This circuit provides the center potential when this IC is used at single power supply. The maximum current is

approximately ±3mA. The output impedance is approximately 147Ω. Connect this circuit to GND when used at

dual power supply.

VCC

VCC

30k

30k

VEE

VC BUFFER

33µ/6.3V

VC

12

VC

147

33µ/6.3V

15k

VEE

Notes on Operation

Power supply

The CXA1821M can be used either at dual power supply or single power supply. The table below shows the

connection of power supply for each case.

VCC

VEE

Dual power supply +power supply –power supply

Single power supply Power supply

GND

VC

GND

OPEN

–9–

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