GL3361
GL3361
Low Power Narrow Band FM IF
Description
Pin Configurations
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.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
OSC1
OSC2
MIXIN
GND
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
MIXOUT
VCC
MUTE
SCAN
SQIN
LIMIN
DEC1
DEC2
QUAD
FLTOUT
FLTIN
AFOUT
• Package Type : 16 DIP/SOP
Block Diagram
IF
input
16
Squelch Filter
Filter
input
Audio
output
Scan
control
13
GND
15
Mute
14
input
output
12
11
10
9
-
A m p
A F
Filter
Amp
+
Squelch Trigger with Hysteresis
Mixer
Demodulator
Limiter
Amp
Oscillator
1
6
8
2
3
4
5
7
Mixer
output
Vcc
Limiter
input
Quad
coil
Decoupling
Crystal OSC
The information in this document is subject to change without notice.
1