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ICS309 - SERIAL PROGRAMMABLE TRIPLE PLL SS VERSACLOCK SYNTHESIZER

General Description

The ICS309 is a versatile serially-programmable, triple PLL with spread spectrum clock source.

The ICS309 can generate any frequency from 250kHz to 200 MHz, and up to 6 different output frequencies simultaneously.

Key Features

  • Packaged in 20-pin SSOP (QSOP).
  • 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.
  • Spread Spectrum frequency modulation for reduced system EMI.
  • Center or Down Spread up to 4% total.
  • Selectable 32 kHz and 120 kHz modulation.
  • Eliminates nee.

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Datasheet Details

Part number ICS309
Manufacturer Integrated Circuit Systems
File Size 132.64 KB
Description SERIAL PROGRAMMABLE TRIPLE PLL SS VERSACLOCK SYNTHESIZER
Datasheet download datasheet ICS309 Datasheet

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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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ICS309 SERIAL PROGRAMMABLE TRIPLE PLL SS VERSACLOCK SYNTHESIZER Description The ICS309 is a versatile serially-programmable, triple PLL with spread spectrum clock source. The ICS309 can generate any frequency from 250kHz 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. To reduce system EMI emissions, spread spectrum is available that supports modulation frequencies of 31 kHz and 120 kHz, as well as modulation amplitudes of +/-0.25% to +/-2.0%. Both center and down-spread options are available. The device includes a PDTS pin which tri-states the output clocks and powers down the entire chip.