CY25562_08 Datasheet, PDF (1/8 Pages) Cypress Semiconductor – Spread Spectrum Clock Generator

CY25562
Spread Spectrum Clock Generator
Features
■ 50 to 200 MHz Operating Frequency Range
■ Wide range of spread selections: 9
■ Accepts Clock and Crystal Inputs
■ Low Power Dissipation
❐ 70 mW Typ (Fin = 65 MHz)
■ Frequency Spread Disable Function
■ Center Spread Modulation
■ Low Cycle-to-cycle Jitter
■ 8-pin SOIC Package
Applications
■ High resolution VGA controllers
■ LCD panels and monitors
■ Workstations and servers
Benefits
■ Peak EMI reduction by 8 to 16 dB
■ Fast time to market
■ Cost reduction
Logic Block Diagram
Xin/
CLK
1
Xout 8
VDD 2
VSS 3
300K
REFERENCE
DIVIDER
PD CP
Loop
Filter
MODULATION
CONTROL
FEEDBACK
DIVIDER
vco
INPUT
DECODER
LOGIC
VDD
20 K
VDD
20 K
20 K
20 K
VSS
VSS
5
67
SSCC
S1 S0
DIVIDER
&
MUX
4 SSCLK
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 38-07392 Rev. *C
• San Jose, CA 95134-1709 • 408-943-2600
Revised September 15, 2008
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