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LC72137M - PLL Frequency Synthesizer

Description

Symbol Pin No.

Crystal oscillator connections (75 kHz) FMIN 13 (12) Local oscillator signal input

FMIN is selected when the serial data input DVS bit is set to 1.

Features

  • High-speed programmable frequency divider.
  • FMIN: 10 to 160 MHzPulse swallower (divide-by-two prescaler built in).
  • AMIN: 2 to 40 MHzPulse swallower 0.5 to 10 MHzDirect division.
  • IF counter IFIN: 0.4 to 12 MHzFor use as an AM/FM IF counter.
  • Reference frequency.
  • Selectable from one of eight frequencies (crystal oscillator: 75 kHz) 1, 3, 5, 3.125, 6.25, 12.5, 15, and 25 kHz.
  • Phase comparator.
  • Supports dead zone control.

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Datasheet preview – LC72137M

Datasheet Details

Part number LC72137M
Manufacturer Sanyo Semicon Device
File Size 351.94 KB
Description PLL Frequency Synthesizer
Datasheet download datasheet LC72137M Datasheet
Additional preview pages of the LC72137M datasheet.

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Full PDF Text Transcription

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Ordering number : EN5743 CMOS IC LC72137, 72137M PLL Frequency Synthesizer for Electronic Tuning Overview The LC72137 and LC72137M are PLL frequency synthesizers for use in radio/cassette players. They allow high-performance AM/FM tuners to be implemented easily. Package Dimensions unit: mm 3059-DIP22S [LC72137] Features • High-speed programmable frequency divider — FMIN: 10 to 160 MHz.....Pulse swallower (divide-by-two prescaler built in) — AMIN: 2 to 40 MHz.........Pulse swallower 0.5 to 10 MHz......Direct division • IF counter IFIN: 0.4 to 12 MHz................For use as an AM/FM IF counter • Reference frequency — Selectable from one of eight frequencies (crystal oscillator: 75 kHz) 1, 3, 5, 3.125, 6.25, 12.
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