Clock Synthesizer Drives Intel Almador Chipset And Pentium IIIs November 2000 Issue Published Date: November 01, 2000
Claimed as the industry's first clock synthesizer for Intel's Almador chipset and Pentium III processor, the C9827 finds application in the design of servers, high-end and mainstream PCs and notebook PCs. The device meets the Almador chipset requirements and exceeds specifications by offering eight programmable spread-spectrum modes and the unique features of Dial-a-Frequency and Dial-a-dB. The chip exceeds the performance requirements for jitter and skew, allowing an additional 50 ps of system timing margin. The eight spread-spectrum modes are selected via an I2C interface and allow an engineer to pick the mode that gives their system the lowest possible EMI. Dial-a-Frequency is also programmed via I2C and allows for the selection of clock speeds above standard levels. The Dial-a-dB feature lets designers use the I2C interface to program the rate at which the spread-spectrum control sweeps its clock frequency back and forth. Pricing starts at $3.85 each/1,000 for the desktop version.
