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MC3372 - Low Power Narrowband FM IF

Description

OPERATING CONDITIONS VCC = 4.0 Vdc, RFIn = 100 µV, fmod = 1.0 kHz, fdev = 3.0 kHz.

MC3371 at fRF = 10.7 MHz (see Figure 11).

Pin 1 Symbol OSC1 Internal Equivalent Circuit Description The base of the Colpitts oscillator.

Features

  • C Quadrature Tuning Coil. Composite (not yet demodulated) 455 kHz IF signal is present. The typical level is 500 mVpp. 10 50 µA 6.

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Datasheet preview – MC3372

Datasheet Details

Part number MC3372
Manufacturer Motorola
File Size 387.83 KB
Description Low Power Narrowband FM IF
Datasheet download datasheet MC3372 Datasheet
Additional preview pages of the MC3372 datasheet.

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Full PDF Text Transcription

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Order this document by MC3371/D Low Power Narrowband FM IF 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.
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