CY28SRC04 Datasheet, PDF (1/10 Pages) Cypress Semiconductor – PCI-Express Clock Generator

PRELIMINARY
CY28SRC04
PCI-Express Clock Generator
Features
• Four 100-MHz differential SRC clocks
• 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
• 24-pin TSSOP package
Block Diagram
XIN
XOUT
XTAL
OSC
PLL Ref Freq
PLL
Divider
Network
IREF
SDATA
SCLK
I²C
Logic
VDD_SRC
SRCT[2:1],SRCC[2:1]
Pin Configuration
Cypress Semiconductor Corporation • 3901 North First Street • San Jose, CA 95134 • 408-943-2600
Document #: 001-00043 Rev. *A
Revised June 20, 2005