Serial Programmable Triple PLL Spread Spectrum VersaClock™ Synthesizer

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. The ICS309 default for non-programmed start-up are buffered reference Clock outputs on all Clock output pins. IDTs VersaClock programming software allows the user to configure up to 9 outputs with target frequencies, spread spectrum capabilities or buffered reference Clock outputs. The VersaClock software automatically configures the PLLs for optimal overall performance. Packaged in 20-pin SSOP (QSOP) Available in Pb (lead) free package 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 need for custom quartz Oscillators Input crystal frequency of 5 - 27 MHz Input Clock frequency of 3 - 50 MHz Output Clock frequencies up to 200 MHz Operating voltage of 3.3 V Up to 9 reference Clock outputs Power down tri-state mode Very low jitter click here for VersaClock Software page By Integrated Device Technology
ICS309 's PackagesICS309 's pdf datasheet

ICS309 Pinout, Pinouts
ICS309 pinout,Pin out
This is one package pinout of ICS309,If you need more pinouts please download ICS309's pdf datasheet.

ICS309 Application circuits
ICS309 circuits
This is one application circuit of ICS309,If you need more circuits,please download ICS309's pdf datasheet.

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