Silicon Labs CY28548ZXCT

Description
The CY28548 is a clock generator designed for Intel's Crestline chipset. It provides differential CPU clocks with selectable frequency, 100 MHz differential SRC clocks, 100 MHz differential LCD clock, 96 MHz differential DOT clock, 48 MHz USB clocks, 33 MHz PCI clock, 27 MHz video clocks, and a buffered reference clock of 14.318 MHz. The CY28548 also features lowpower pushpull type differential output buffers, integrated voltage regulator, integrated resistors on differential clocks, scalable low voltage VDD_IO (3.3V to 1.25V), lowvoltage frequency select input, I2C support with readback capabilities, and an ideal Lexmark Spread Spectrum profile for maximum electromagnetic interference (EMI) reduction.

Features
Compliant to Intel® CK505
Low power pushpull type differential output buffers
Integrated voltage regulator
Integrated resistors on differential clocks
Scalable low voltage VDD_IO (3.3V to 1.25V)
Differential CPU clocks with selectable frequency
100 MHz Differential SRC clocks
100 MHz Differential LCD clock
96 MHz Differential DOT clock
48 MHz USB clocks
33 MHz PCI clock
27 MHz Video clocks
Buffered Reference Clock 14.318 MHz
Lowvoltage frequency select input
I2C support with readback capabilities
Ideal Lexmark Spread Spectrum profile for maximum electromagnetic interference (EMI) reduction
3.3V Power supply
64pin QFN/TSSOP packages

Applications
Intel Crestline chipsetbased systems