Product Details

The ML3371 and ML3372 perform single conversion FMreception and consist of an oscillator, mixer, limiting IF amplifi-er, quadrature discriminator, active filter, squelch switch, andmeter drive circuitry. These devices are designed for use in FMdual conversion communication equipment.

The ML3371/ML3372are similar to the Motorola MC3361/MC3357 FM IFs, exceptthat a signal strength indicator replaces the scan function control-ling driver which is in the MC3361/MC3357. The ML3371 isdesigned for the use of parallel LC components, while theML3372 is designed for use with either a 455 kHz ceramic dis-criminator, or parallel LC components. These devices also require fewer external parts than earlierproducts. The ML3371 and ML3372 are available in dual–in–lineand surface mount packaging.

Product Features

​•  Wide Operating Supply Voltage Range: VCC= 2.0 to 9.0 V

•  Input Limiting Voltage Sensitivity of –3.0 dB

•  Low Drain Current: ICC= 3.2 mA, @ VCC= 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

•  Operating Temperature Range TA= –30° to +70°C

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