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CXA1538 Datasheet

  • CXA1538

  • FM STEREO/AM RADIO

  • 15頁

  • SONY   SONY

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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.
Features
鈥?/div>
Low current consumption
(In FM mode I
D
=11.0 mA, in AM mode 8.5 mA,
V
CC
=6.0 V)
鈥?/div>
Built-in LED drive circuit for tuning
鈥?/div>
Built-in LED drive circuit for stereo indicator
鈥?/div>
Built-in muting circuit for the FM band
鈥?/div>
Few external parts
Absolute Maximum Ratings
(Ta=25 擄C)
鈥?/div>
Supply voltage
V
CC
14
V
鈥?/div>
Operating temperature Topr
鈥?0 to +60
擄C
鈥?/div>
Storage temperature
Tstg 鈥?5 to +150 擄C
鈥?/div>
Junction temperature
Tjmax
125
擄C
鈥?/div>
Allowable power dissipation
P
D
CXA1538M
500
mW
CXA1538N
410
mW
CXA1538S
1050
mW
CXA1538M
30 pin SOP (Plastic)
CXA1538S
30 pin SDIP (Plastic)
CXA1538N
30 pin SSOP (Plastic)
Recommended Operating Conditions
Supply voltage
V
CC
2 to 9
Structure
Bipolar silicon monolithic IC
V
Block Diagram
GND
30
PLL
LPF 2
29
MPX
REG
28
VCO
27
FM
DISCRI MUTE
26
25
AM
OSC
24
AFC
23
FM
OSC
22
REG
21
FM
RF
20
AM RF FM RF
IN
IN
19
18
FM/AM
FE
GND FE OUT
17
16
VCO
MULTIPLEX
REGULATOR
REGULATOR
FM FE
AM FE
PD 1
MUTING
1/2 COUNTER
PD 2
AUTO
BLEND
BU
AMP
BU
AMP
DC
AMP
FM IF/
DISCRI
AM IF/DET
DECODE AMP
M/ST
SW
ST
IND
RIPPLE FILTER
DC
AMP
DETUNE
MUTING
CONTROL
TUNING IND
1
PLL
LPF1
2
PILOT
DET
LPF2
3
PILOT
DET
LPF2
4
ST
IND
VCO
CHECK
5
Rch
OUT
6
Lch
OUT
7
V
CC
8
9
10
AGC
AFC 2
11
GND
12
TUNE
IND
13
FM IF
IN
14
15
RIPPLE AGC
FILTER AFC 1
AM IF BAND
IN
SELECT
DET : DETECTOR
IND : INDICATOR
PD : PHASE DETECTOR
BU : BUFFER
FE : FRONT END
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.
鈥?鈥?/div>
E93313D8X

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