CXA2556Q Ver la hoja de datos (PDF) - Sony Semiconductor

Número de pieza

componentes Descripción

Fabricante

CXA2556Q

RF Amplifier for CD Player/CD-ROM

Sony Semiconductor 

Pin

No.

Symbol

I/O

20 VCC

21 RFO 2 O

22 RFO 1 O

23 MODE 2 I

24 MODE 1 I

25 APC ON I

CXA2556Q

Equivalent circuit

3k

147

21

147

22

Description

Power supply.

Buffer switch output for the RF

time constant setting for Pin 21.

ON when Pins 23 and 24 are

connected to GND.

RF equalizer output.

147 10k

23

40k

147 10k 40k

24

147

25

100k

Double-speed mode switching

input.

×1

×N

× 1.5N

× 2.0N

Mode 1

GND

VCC

GND

VCC

Mode 2

GND

GND

VCC

VCC

N is varied according to the

external resistor connected to

Pin 26.

Switching pin for APC amplifier

ON/OFF.

OFF when connected to Vcc;

ON when connected to GND.

26 FC C

I

5k

5k 5k

147

26

Input to set the RF equalizer

LPF cut-off frequency.

–5–

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