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Sony Semiconductor Electronic Components Datasheet

CXA1884N Datasheet

Low-voltage FM IF Amplifier

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Low-voltage FM IF Amplifier
CXA1884N
Description
The CXA1884N is designed for FM communication
devices. They incorporate a paging system, mixer, IF
limiter, FM detector, operational amplifier, comparator,
and others.
20 pin SSOP (Plastic)
Features
Low operating voltage
1.0 to 4.0V
Low power consumption
2mA at 1.5V
Built-in power source voltage monitor
Applications
IF Amplifier for Paging System Receiver
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings (Ta = 25°C)
Supply voltage Vcc 7
Operating temperature Topr –20 to +75
Storage temperature Tstg –65 to +150
V
°C
°C
Recommended Operating Conditions
Supply voltage
Vcc 1.0 to 4.0
V
Block Diagram and Pin Configuration
20 19 18 17 16 15 14 13 12 11
MIXER
OSC
REG.
ERR.
AMP
A2
IF LIM.
QUAD
DET.
A1
1 2 3 4 5 6 7 8 9 10
Note)
DET. : DETECTOR
LIM. : LIMITER
REG. : REGURATOR
ERR. : ERROR CORRECTION
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–
E97Z05A8Y


Sony Semiconductor Electronic Components Datasheet

CXA1884N Datasheet

Low-voltage FM IF Amplifier

No Preview Available !

Pin Description
Pin
No.
Symbol
1 OSC1
2 OSC2
3 MIX OUT
4 VCC
5 IF IN
6 IF P1
7 IF P2
8 QD
Equivalent circuit
VCC
1
2
GND
VCC
3
GND
VCC
5
6
GND
VCC
7
GND
VCC
8
GND
CXA1884N
Description
Those pins are connected to the external
parts of an oscillating circuit.
The oscillator is an internally-biased Colpitts
type with the collector, base, and emitter
connections at Vcc, pins 1 and 2
respectively.
Mixer output pin. Connect a 455kHz ceramic
filter between this pin and the IF IN pin.
Vcc pin.
Input pin for the IF limiter amplifier.
Connection pin of the bypass capacitor for
the IF limiter amplifier. Connect a capacitor of
about 0.047µF between this pin and ground
(or Vcc).
Connection pin of the bypass capacitor for
the IF limiter amplifier. Connect a capacitor of
about 0.047µF between this pin and ground
(or Vcc).
Connected to a quadrature detector phase
shifter.
–2–


Part Number CXA1884N
Description Low-voltage FM IF Amplifier
Maker Sony Corporation
Total Page 16 Pages
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Sony Corporation





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