CXA1538 Sony Corporation, CXA1538 Datasheet - Page 4

• Manufacturer Part Number: CXA1538
• Description: FM STEREO/AM RADIO
• Manufacturer: Sony Corporation

No.
21
23
22
24
26
27
28
30
REG
AFC
FM OSC
AM OSC
FM DISCRI
VCO
MPX REG
GND
Symbol
1.25 1.25 1.25 1.25
1.25 1.25 1.25 1.25
1.25 1.25 1.25 1.25
2.30 2.70 3.60 4.00
1.65 1.65 1.65 1.65
V
FM AM FM AM
0
CC
Pin Voltage (V)
=3 V V
0
0
CC
=6 V
0
22
24
23
—4—
1k
Equivalent circuit
26
21
30
27
28
MPX REG
1.25V
REG
REG
REG
Regulator output
Variable capacitance for AFC
FM local oscillation circuit
AM local oscillation circuit
Phase shift circuit to connect
to ceramic discriminator
VCO control pin for stereo
demodulation
Regulator for MPX
GND of MPX block
Description
CXA1538M/N/S