GL3361

1

Low Power Narrow Band FM IF

Description

The GL3361 is designed for use in FM dual conversion

communications equipment. This device contains an Os-

cillator, Mixer, Limiting Amplifier, Filter Amplifier and

Squelch circuitry.

Features

• Operating Voltage : 2.0 ~ 8.0 V

• Low Power Consumption (2.6mA typical @ Vcc=4.0Vdc)

• Excellent Input Sensitivity (-3dB limiting=2.6§ Åtypical)

• Minimum Number of External Parts Required

• Full ESD Protection

• Package Type : 16 DIP/SOP

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

OSC1

OSC2

MIXOUT

VCC

DEC1

DEC2

QUAD

LIMIN

MIXIN

GND

MUTE

SCAN

SQIN

FLTOUT

FLTIN

AFOUT

Pin Configurations

Block Diagram

The information in this document is subject to change without notice.

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

Oscillator

Mixer

Squelch Trigger with Hysteresis

Filter

Amp

Demodulator

Limiter

Amp

Crystal OSC

Mixer

output

Vcc

Limiter

input

Decoupling

Quad

coil

IF

input

GND

Mute

Scan

control

Squelch

input

Filter

output

Filter

input

Audio

output

-

+

GL3361