CXA1538M View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

View to exact match

CXA1538M

FM Stereo / AM Radio

Sony Semiconductor 

CXA1538M/N/S

Pin Voltage (V)

No.

Symbol

VCC=3 V VCC=6 V

FM AM FM AM

Equivalent circuit

Description

21 REG

23 AFC

1.25 1.25 1.25 1.25

23

Regulator output

21

1.25V

REG

Variable capacitance for AFC

22 FM OSC

22

1.25 1.25 1.25 1.25

REG

FM local oscillation circuit

24 AM OSC

24

1.25 1.25 1.25 1.25

REG

AM local oscillation circuit

26 FM DISCRI 2.30 2.70 3.60 4.00

26

1k

Phase shift circuit to connect

to ceramic discriminator

27 VCO

28 MPX REG 1.65 1.65 1.65 1.65

30 GND

0000

27

28 MPX REG

VCO control pin for stereo

demodulation

Regulator for MPX

30

GND of MPX block

—4—

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