cxa1991n Sony Electronics, cxa1991n Datasheet

cxa1991n

Manufacturer Part Number

cxa1991n

Description

Fm Pager/fm Multiplex Tuner

Manufacturer

Sony Electronics

Datasheet

1.CXA1991N.pdf (12 pages)

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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

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.

AGC BUFF

= 0.8 mA for AM; V

FM FRONT END

AM FRONT END

AM IF, IF DET

AGC

= 3 V)

—1—

Absolute Maximum Ratings (Ta=25 °C)

• Supply voltage

• Operating temperature

• Storage temperature

• Allowable power dissipation

Operating Conditions

Supply voltage

FM IF DET

REG

CXA1991N

20 pin SSOP (Plastic)

Topr

Tstg

SAVE CONT

BATTERY

–65 to +150

–20 to +75

METER

1.8 to 4.5

400

E95925B8Y

°C

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