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CXA3117AN

E97220A8Z

IF Amplifier for M-ary FSK Pagers

Description

The CXA3117AN is a low current consumption FM

IF amplifier which employs the newest bipolar

process. It is suitable for M-ary FSK pagers.

Features

• Low current consumption: 1.1mA

• Small package 24-pin SSOP

• Second mixer and oscillator

• Needless of IF decoupling capacitor

• Reference power supply for operational amplifier

and comparator

• Bit rate filter with variable cut-off

• Misoperation prevention function for continuous data

• RSSI function

• Quick charge by the detector output sense method

Applications

• M-ary FSK pagers

• Double conversion pagers

Block Diagram and Pin Configuration

Structure

Bipolar silicon monolithic IC

Absolute Maximum Ratings

• Supply voltage

7.0

V

• Operating temperature

Topr

–20 to +75 °C

• Storage temperature

Tstg –65 to +150 °C

417

mW

Operating Condition

Supply voltage

1.1 to 4.0

V

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.

24 pin SSOP (Plastic)

OSC

IF_LIM

FILTER

MIX

QUAD_DET

LEVEL

COMP

REG

RSSI

CHARGE

GND

LVA

13

14

15

16

17

18

19

20

21

22

23

24

2

3

4

5

6

7

8

9

10

11

12

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