CY28409
CY28409 is Clock Synthesizer manufactured by Cypress.
Clock Synthesizer with Differential SRC and CPU Outputs
Features
- Supports Intel® Pentium® 4-type CPUs
- Selectable CPU frequencies
- 3.3V power supply
- Ten copies of PCI clocks
- Five copies of 3V66 with one optional VCH
- Two copies 48-MHz USB clocks
- Three differential CPU clock pairs
- One differential SRC clock
- I2C support with readback capabilities
- Ideal Lexmark Spread Spectrum profile for maximum EMI reduction
- 56-pin SSOP and TSSOP packages
3V66
48M x3 x1 x 5 x 10 x 2 x 2
Block Diagram
XIN XOUT
CPU_STP# PCI_STP#
FS_[A:B] VTT_PWRGD#
IREF
~
XTAL OSC
PLL Ref Freq
PLL1
Divider Network
PLL2
PD#
SDATA SCLK
I2C Logic
Pin Configuration[1]...
