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E96Y06A8Z

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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.

Absolute Maximum Ratings

• Supply voltage

7.0

V

• Operating temperature

Topr

–20 to +75

°C

• Storage temperature

Tstg

–65 to +150

°C

• Allowable power dissipation

417

mW

Operating Condition

Supply voltage

1.1 to 4.0

V

Description

The CXA3179N is a low current consumption FM

IF amplifier which employs the newest bipolar

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

AFC.

Features

• Low current consumption : 1.1 mA

• 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

• AFC current output circuit

• RSSI function

• Maximum input frequency : 30 MHz

Applications

• M-ary FSK pagers

• Double conversion pagers

Structure

Bipolar silicon monolithic IC

Block Diagram and Pin Configuration

IF Amplifier for M-ary FSK Pagers (AFC Supported)

24 pin SSOP (Plastic)

CXA3179N

OSC

MIX

REG

LVA

IF_LIM

AFC

QUAD_DET

RSSI

FILTER

GND

LEVEL

COMP

20

19

18

17

16

15

14

13

24

23

22

21

1

2

3

4

5

6

7

8

9

12

11

10