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Advanced Digital Tuning System for Car Radio
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English
Abstract
New semiconductor chips have been developed that will allow radio designers to reduce the chip count and gain performance advantages. One chip, the uPD1713G, contains a four bit CMOS microprocessor controller, prescaler, PLL, IF counters, I/O capability and direct AM and FM input. The uPC1296G contains an RF amplifier, mixer, oscillator, IF amplifier, AGC circuitry and signal meter output. These chips can be combined to make a three chip, digitally tuned AM car radio.