CY25560_12 Datasheet, PDF (1/13 Pages) Cypress Semiconductor – Spread Spectrum Clock Generator

CY25560
Spread Spectrum Clock Generator
Features
■ 25 MHz to 100 MHz operating frequency range
■ Nine different spread select options
■ Accepts clock and crystal inputs
■ Low power dissipation:
❐ 56 mW at Fin = 25 MHz
❐ 89 mW at Fin = 65 MHz
❐ 139 mW at Fin = 100 MHz
■ Frequency spread disable function
■ Center spread modulation
■ Low cycle-to-cycle jitter
■ 8-pin SOIC package
■ Commercial and industrial temperature ranges
Applications
■ Desktop, notebook, and tablet PCs
■ VGA controllers
■ LCD panels and monitors
■ Printers and multifunction devices (MFP)
Benefits
■ Peak electromagnetic interference (EMI) reduction by 8 to
16 dB
■ Fast time to market
■ Cost reduction
Logic Block
250 K
Xin/
CLK
1
Xout 8
REFERENCE
DIVIDER
MODULATION
CONTROL
PD CP
FEEDBACK
DIVIDER
Loop
Filter
vco
VDD ₂
VSS 3
VDD
20 K
INPUT
DECODER
LOGIC
VDD
20 K
20 K
VSS
5
SSCC
67
S1 S0
20 K
VSS
DIVIDER
&
MUX
4 ^SSCLK
Cypress Semiconductor Corporation • 198 Champion Court
Document #: 38-07425 Rev. *G
• San Jose, CA 95134-1709 • 408-943-2600
Revised August 12, 2011