cxa1991n Sony Electronics, cxa1991n Datasheet

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cxa1991n

Manufacturer Part Number
cxa1991n
Description
Fm Pager/fm Multiplex Tuner
Manufacturer
Sony Electronics
Datasheet

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Block Diagram
Description
FM pagers and FM multiplex broadcasting. A
receiver system can be configured by using the
digital data output, in combination with a decoder. It
has a battery save function and ultra-low power
consumption.
Features
• Ultra-low power consumption
• LED drive circuit for tuning
• Battery save function
• Few external parts
Applications
• Tuners for FM multiplex broadcasting
• FM pagers
The CXA1991N is a tuner IC designed for use in
(I
D
FM Pager/FM Multiplex Tuner
= 1.2 mA for FM; I
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.
20
1
AGC BUFF
D
= 0.8 mA for AM; V
19
2
FM FRONT END
AM FRONT END
18
3
AM IF, IF DET
17
4
CC
AGC
= 3 V)
16
5
—1—
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage
• Operating temperature
• Storage temperature
• Allowable power dissipation
Operating Conditions
Supply voltage
15
FM IF DET
6
REG
CXA1991N
14
7
20 pin SSOP (Plastic)
13
8
V
Topr
Tstg
V
P
12
SAVE CONT
CC
9
CC
BATTERY
D
–65 to +150
–20 to +75
METER
1.8 to 4.5
11
10
400
14
E95925B8Y
mW
°C
°C
V
V

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