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LC72131M - AM/FM PLL Frequency Synthesizer

Key Features

  • . This LSI adopts an 8-bit address format CCB. I/O mode Address B0 B1 B2 B3 A0 A1 A2 A3 Function 1 IN1 (82) 0 0 0 1 0 1 0 0.
  • Control data input mode (serial data input).
  • 24 data bits are input.
  • See the “DI Control Data (serial data input) Structure” item for details on the meaning of the input data. 2 IN2 (92).

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Ordering number : EN4921B CMOS LSI LC72131, 72131M AM/FM PLL Frequency Synthesizer Overview The LC72131 and LC72131M are PLL frequency synthesizers for use in tuners in radio/cassette players. They allow high-performance AM/FM tuners to be implemented easily. Package Dimensions unit: mm 3059-DIP22S [LC72131] 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.