Spread Spectrum Frequency Timing Generator

The W155 incorporates the latest advances in PLL-based spread spectrum Frequency Synthesizer technology. By fre- quency modulating the SYSCLK output with a low-frequency Carrier peak EMI CAN be greatly reduced in a system. Use of this technique allows systems to pass increasingly difficult EMI testing without resorting to costly shielding or redesign. In a system that uses the W155 not only is EMI reduced in the various Clock lines, but also in all signals which are synchro- nized to SYSCLK. Therefore, the benefits of using this tech- nique increase with the number of address and data lines in the system. The W155 is specifically targeted toward MIPS microproces- sor based systems where EMI is of particular concern. Each device uses a single 14.318-MHz crystal to generate a select- able spread spectrum output and an unmodulated 48-MHz USB Output. By Cypress Semiconductor Corp.
W155 's PackagesW155 's pdf datasheet

W155 Pinout, Pinouts
W155 pinout,Pin out
This is one package pinout of W155,If you need more pinouts please download W155's pdf datasheet.

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