This part is a kind of semiconductor called LC72130.

Function of this product has AM/FM PLL Frequency Synthesizer.

Manufacturers : Sanyo Semicon Device

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Ordering number : EN4973A CMOS LSI LC72130, 72130M AM/FM PLL Frequency Synthesizer Overview The LC72130 and LC72130M are PLL frequency synthesizers for use in tuners in radio cassette recorders and other products. Package Dimensions unit: mm 3067-DIP24S [LC72130] Applications PLL frequency synthesizer Functions • High-speed programmable dividers FMIN: 10 to 160 MHz ..pulse swallower (built-in divide-by-two prescaler) AMIN: 2 to 40 MHz ..pulse swallower 0.5 to 10 MHz ...direct division • IF counter IFIN: 0.4 to 12 MHz ...AM/FM IF counter • Reference frequencies Twelve selectable frequencies (4.5 or 7.2 MHz crystal) 1, 3, 5, 9, 10, 3.125, 6.25, 12.5, 15, 25, 50 and 100 kHz • Phase comparator Dead zone control Unlock de [ ... ]

LC72130 PDF Datasheet Download