CXA3117AN 查看數據表（PDF） - Sony Semiconductor

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CXA3117AN

IF Amplifier for M-ary FSK Pagers

Sony Semiconductor 

CXA3117AN

Pin

No.

Symbol

Pin

voltage

Equivalent circuit

15 L.C. OUT

—

19 NRZ OUT —

20 LVA OUT

—

15

19

72

20

GND

VCC

16 AUDIO

0.2V

72

16

72

GND

17 B.S.

17

72

20k

—

140k

GND

Description

Level comparator, NRZ comparator

and LVA comparator outputs. They are

open collectors.

(Applied voltage range: –0.5V to +7.0V)

Level comparator and NRZ comparator

inputs. The filter circuit output is

connected.

Controls the battery saving.

Setting this pin low suspends the

operation of IC.

(Applied voltage range: –0.5V to +7.0V)

18 CHARGE

—

21

REG

CONT

—

22 REG OUT 1.0V

23 GND

—

20k

18

100k

72

21

Controls the speed of the quick charge

circuit. Set this pin high to execute the

quick charge.

(Applied voltage range: –0.5V to +7.0V)

GND

VCC

Output for internal constant-voltage

source amplifier. Connect the base of

PNP transistor.

(Current capacity: 100µA)

GND

VCC

78k 1k

22

22k

GND

–4–

Constant-voltage source output.

Controlled to maintain 1.0V.

Ground

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