CXA1991N 查看數據表（PDF） - Sony Semiconductor

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CXA1991N

FM Pager/FM Multiplex Tuner

Sony Semiconductor 

Pin

Pin voltage (V)

Symbol

No.

FM AM

8 BS

Equivalent circuit

160k

8

550k

CXA1991N

Description

Controls battery save via

microcomputer.

High = Active, Low = Save

10 AFC

1.0 0.7

10

200k

13 FM OSC 1.1 1.1

AFC varicap pin.

REG

13

FM local oscillation circuit.

11 TUNE

1.1 1.1

11

REG

12 AM OSC 1.1 1.1

12

VCC

AM/FM tuning indicator drive

circuit.

AM local oscillation circuit.

14 REG

1.1 1.1

VCC

14

Regulator output pin.

—3—

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