CXA1991N Datasheet, PDF (1/12 Pages) Sony Corporation – FM Pager/FM Multiplex Tuner

CXA1991N
FM Pager/FM Multiplex Tuner
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Description
The CXA1991N is a tuner IC designed for use in
20 pin SSOP (Plastic)
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
(ID = 1.2 mA for FM; ID = 0.8 mA for AM; VCC = 3 V)
• LED drive circuit for tuning
• Battery save function
• Few external parts
Applications
• Tuners for FM multiplex broadcasting
• FM pagers
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage
VCC
14
V
• Operating temperature Topr –20 to +75 °C
• Storage temperature Tstg –65 to +150 °C
• Allowable power dissipation
PD
400 mW
Operating Conditions
Supply voltage
VCC 1.8 to 4.5 V
Block Diagram
20
19
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17
16
15
14
13
12
11
FM FRONT END
REG
METER
AM FRONT END
AGC BUFF
AM IF, IF DET
AGC
FM IF DET
BATTERY
SAVE CONT
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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.
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E95925B8Y