
Clock Generator for IntelCrestline Chipset
CY28548
........................ Document #: 001-08400 Rev ** Page 1 of 30
400 West Cesar Chavez, Austin, TX 78701
1+(512) 416-8500
1+(512) 416-9669
www.silabs.com
Features
Compliant to Intel CK505
Low power push-pull 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
Low-voltage frequency select input
I2C support with readback capabilities
Ideal Lexmark Spread Spectrum profile for maximum
electromagnetic interference (EMI) reduction
3.3V Power supply
64-pin QFN/TSSOP packages
CPU
SRC
PCI
REF DOT96 USB_48 LCD
27M
x2 / x3 x7/11
x6
x 1
x1
x2
Block Diagram