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CXA1538 View Datasheet(PDF) - Sony Semiconductor

Part NameDescriptionManufacturer
CXA1538 FM Stereo / AM Radio Sony
Sony Semiconductor Sony
CXA1538 Datasheet PDF : 15 Pages
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CXA1538M/N/S
FM Stereo/AM Radio
For the availability of this product, please contact the sales office.
Description
The CXA1538M/N/S is high performance one-chip
bipolar ICs designed for FM stereo/AM radios.
These include an FM/AM front end, FM/AM IF
amplifier, FM/AM detection output and FM stereo
demodulator output.
CXA1538M
30 pin SOP (Plastic)
CXA1538S
30 pin SDIP (Plastic)
Features
Low current consumption
(In FM mode ID=11.0 mA, in AM mode 8.5 mA,
VCC=6.0 V)
Built-in LED drive circuit for tuning
Built-in LED drive circuit for stereo indicator
Built-in muting circuit for the FM band
Few external parts
CXA1538N
30 pin SSOP (Plastic)
Absolute Maximum Ratings (Ta=25 °C)
Supply voltage
VCC
14
V
Operating temperature Topr –10 to +60 °C
Storage temperature Tstg –55 to +150 °C
Junction temperature Tjmax
125
°C Recommended Operating Conditions
Allowable power dissipation
Supply voltage
VCC
2 to 9
V
PD CXA1538M 500
mW
CXA1538N 410
mW Structure
CXA1538S 1050 mW
Bipolar silicon monolithic IC
Block Diagram
GND
30
PLL
LPF 2
29
MPX
REG
28
FM
VCO DISCRI MUTE
27
26
25
AM
OSC
24
AFC
23
FM
OSC
22
REG
21
FM AM RF FM RF FE FM/AM
RF
IN
IN GND FE OUT
20
19
18
17
16
VCO
M/ST
SW
ST
IND
MULTIPLEX
REGULATOR
REGULATOR
FM FE
AM FE
1/2 COUNTER
PD 1
PD 2
DECODE AMP
MUTING
DC
AMP
AUTO
BLEND
BU
AMP
BU
AMP
FM IF/
DISCRI
AM IF/DET
RIPPLE FILTER
DETUNE
DC
AMP
MUTING
CONTROL
TUNING IND
1
2
3
4
5
PLL
LPF1
PILOT
DET
LPF2
PILOT ST
DET IND
LPF2 VCO
CHECK
Rch
OUT
6
Lch
OUT
7
8
9
10
11
12
13
14
15
VCC RIPPLE AGC AGC GND TUNE FM IF AM IF BAND
FILTER AFC 1 AFC 2
IND IN
IN SELECT
PD : PHASE DETECTOR
BU : BUFFER
FE : FRONT END
DET : DETECTOR
IND : INDICATOR
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1—
E93313D8X
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