Specifications | Temperature | I |
| Voltage | 3.3 V |
| Package | TSSOP 16 |
| Speed | NA |
| Spread Spectrum | Yes |
| VCXO | No |
| Output Style | SE |
| Input Style | Crystal |
| Max. Output Frequency | 200 MHz |
| Min. Output Frequency | 0.314 MHz |
| Max. Input Frequency | 150 MHz |
| Min. Input Frequency | 3 MHz |
| Temp. Grade | C |
| Core Supply Voltage (VDD) | 3.3V |
| Output Supply Voltage (VDDO) | 1.8V - 3.3V |
| No. of Outputs | 3 |
| No. of Inputs | |
DescriptionTRIPLE PLL FIELD PROGRAMM
The ICS281 field programmable spread spectrum clock synthesizer generates up to three high-quality, high-frequency clock outputs including multiple reference clocks from a low-frequency crystal input. 281PGIT is designed to replace crystals, crystal oscillators and stand alone spread spectrum devices in mostelectronic systems.
Using IDT's VersaClock? software to configure PLLs and outputs, the ICS281 contains a One-Time Programmable (OTP) ROM for field programmability. 281PGIT programming features include input/output frequencies, spread spectrum amount and eightselectable configuration registers.
Using Phase-Locked Loop (PLL) techniques, 281PGIT runs from a standard fundamental mode, inexpensive crystal, or clock. It can replace multiple crystals and oscillators, saving board space and cost.
The ICS281 is also available in factory programmed custom versions for high-volume applications.
Packaged as 16-pin TSSOP
Eight addressable registers
Replaces multiple crystals and oscillators
Output frequencies up to 200 MHz at 3.3 V
Configurable Spread Spectrum Modulation
Input crystal frequency of 5 to 27 MHz
Input clock frequency of 3 to 166 MHz
Up to three reference outputs
Operating voltages of 3.3 V
VDDO output control from 1.8 V to 3.3 V
Controllable output drive levels
Advanced, low-power CMOS process
Available in Pb (lead) free packaging
click here for VersaClock Software page
281PGIT Data Sheet
