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LC72122V - PLL Frequency Synthesizer

Datasheet Summary

Description

Symbol Pin No.

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

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

The input frequency range is from 10 to 250 MH

Features

  • High-speed programmable frequency divider.
  • FMIN: 10 to 250 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 nine frequencies (crystal oscillator: 75 kHz) 1, 2.5, 3, 5, 3.125, 6.25, 12.5, 15, and 25 kHz.
  • Phase comparator.
  • Supports dead z.

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Datasheet preview – LC72122V

Datasheet Details

Part number LC72122V
Manufacturer Sanyo Semicon Device
File Size 346.73 KB
Description PLL Frequency Synthesizer
Datasheet download datasheet LC72122V Datasheet
Additional preview pages of the LC72122V datasheet.

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Full PDF Text Transcription

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Ordering number : ENN6113A CMOS IC LC72122V PLL Frequency Synthesizer for Portable Equipment Electronic Tuning Overview The LC72122V is a low-voltage (1.8 to 3.6 V) PLL frequency synthesizer IC that allows portable TV (VHF)/FM/AM tuners to be constructed easily. Features • High-speed programmable frequency divider — FMIN: 10 to 250 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 nine frequencies (crystal oscillator: 75 kHz) 1, 2.5, 3, 5, 3.125, 6.25, 12.
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