MC3371

Features:

Wide Operating Supply Voltage Range: V_CC= 2.0 to 9.0 V
Input Limiting Voltage Sensitivity of 3.0 dB
Low Drain Current: I_CC= 3.2 mA, @ V_CC= 4.0 V, Squelch Off
Minimal Drain Current Increase When Squelched
Signal Strength Indicator: 60 dB Dynamic Range
Mixer Operating Frequency Up to 100 MHz
Fewer External Parts Required than Earlier Devices


Pinout




Specifications

Rating	Pin	Symbol	Value	Unit
Power Supply Voltage	4	VCC(max)	10	Vdc
RF Input Voltage (VCC  4.0 Vdc)	16	V16	1.0	Vrms
Detector Input Voltage	8	V8	1.0	Vpp
Squelch Input Voltage (VCC  4.0 Vdc)	12	V12	6.0	Vdc
Mute Function	14	V14	0.7to 10	Vpk
Mute Sink Current	14	l14	50	mA
Junction Temperature		TJ	150	°C
Storage Temperature Range		Tstg	65 to +150	°C

 

NOTES:
1. Devices should not be operated at these values. The "Recommended Operating Conditions" table provides conditions for actual device operation.
2. ESD data available upon request.

Description

The MC3371 and MC3372 perform single conversion FM reception and consist of an oscillator, mixer, limiting IF amplifier, quadrature discriminator,active filter, squelch switch, and meter drive circuitry. These devices are designed for use in FM dual conversion communication equipment. The MC3371/MC3372 are similar to the MC3361/MC3357 FM IFs, except that a
signal strength indicator replaces the scan function controlling driver which is in the MC3361/MC3357. The MC3371 is designed for the use of parallel LC components, while the MC3372 is designed for use with either a 455 kHz ceramic discriminator, or parallel LC components.

These devices also require fewer external parts than earlier products. The MC3371 and MC3372 are available in dualinline and surface mount packaging.