Electronically Tuned Radio Front End

The MC13025 is the complementary ETR® Electronically Tuned Radio front–end for the second generation MC13022 C–QUAM® AM stereo IF and decoder. The MC13025 provides a high dynamic range mixer, voltage controlled oscillator, and first IF that with the MC13022 and synthesizer form a complete digitally controlled AM stereo tuner system. This system in turn may drive a dual channel audio processor and high power amplifiers for car radio or home stereo applications. Other applications include portable radio “boom boxes”, table radios and component stereo systems.

• Operates Over a Wide Range of Supply Voltages: 6.0 VCC to 10 VCC
• Wideband AGC Voltage to RF Amp for Extended Dynamic Range
• Buffered VCO Output to Frequency Synthesizer
• No External RF Amp Needed for Most Home Stereo and Portable Radios
• IF Drive Output Matches the MC13022 for Optimum Performance
• VCO Operates at Four Times Local Oscillator Injection Frequency