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ICS308 - SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER

Description

The ICS308 is a versatile serially programmable, quad PLL clock source.

The ICS308 can generate any frequency from 250 kHz to 200 MHz, and up to 6 different output frequencies simultaneously.

The outputs can be reprogrammed on the fly, and will lock to a new frequency in 10 ms or less.

Features

  • Packaged in 20-pin SSOP (QSOP).
  • Operating voltage of 3.3 V.
  • Highly accurate frequency generation.
  • M/N Multiplier PLL: M = 1..2048, N = 1..1024.
  • Serially programmable: user determines the output frequency via a 3-wire interface.
  • Eliminates need for custom quartz oscillators.
  • Input crystal frequency of 5 - 27 MHz.
  • Optional programmable on-chip crystal capacitors.
  • Output clock frequencies up to 200 MHz.
  • Refe.

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Datasheet Details

Part number ICS308
Manufacturer Integrated Circuit Systems
File Size 134.18 KB
Description SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER
Datasheet download datasheet ICS308 Datasheet

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Full PDF Text Transcription

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ICS308 SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER Description The ICS308 is a versatile serially programmable, quad PLL clock source. The ICS308 can generate any frequency from 250 kHz to 200 MHz, and up to 6 different output frequencies simultaneously. The outputs can be reprogrammed on the fly, and will lock to a new frequency in 10 ms or less. Smooth transitions (in which the clock duty cycle remains roughly 50%) are guaranteed if the output divider is not changed. The device includes a PDTS pin which tri-states the output clocks and powers down the entire chip. The ICS308 default for non-programmed start-up are buffered reference clock outputs on all clock output pins. Features • Packaged in 20-pin SSOP (QSOP) • Operating voltage of 3.
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