Product Summary

The MC13028A is a third generation C–QUAM stereo decoder targeted for use in low voltage, low cost AM/FM E.T.R. radio applications. Advanced features include a signal quality detector that analyzes signal strength,signal to noise ratio, and stereo pilot tone before switching to the stereomode. A "blend function" much like FM stereo has been added to improvethe transition from mono to stereo. The audio output level is adjustable toallow easy interface with a variety of AM/FM tuner chips. The external components have been minimized to keep the total system cost low.

Parametrics

MC13028A absolute maximum ratings: (1)Power Supply Input Voltage: 14Vdc; (2)Operating Junction Temperature: 150℃; (3)Operating Ambient Temperature: -25 to +70℃; (4)Storage Temperature Range: -55 to +150℃; (5)LED Indicator Current: 10mA.

Features

MC13028A features: (1)Adjustable Audio Output Level; (2)Stereo Blend Function; (3)Stereo Threshold Adjustment; (4)Operation from 2.2 V to 12 V Supply; (5)Precision Pilot Tone Detector; (6)Forced Mono Function; (7)Single Pinout VCO; (8)IF Amplifier with IF AGC Circuit; (9)VCO Shutdown Mode at Weak Signal Condition.

Diagrams

MC13028A Representative Block Diagram

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MC13028A
MC13028A

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