CY25811/12/14
Spread Spectrum Clock Generator
Features
■
■
■
■
Applications
■
■
■
■
■
■
■
■
■
4 to 32 MHz input frequency range
4 to 128 MHz output frequency range
Accepts clock, crystal, and resonator inputs
1x, 2x, and 4x frequency multiplication:
❐
CY25811: 1x; CY25812: 2x; CY25814: 4x
Center and down spread modulation
Low power dissipation:
❐
3.3V = 52 mW - typ at 6 MHz
❐
3.3V = 60 mW - typ at12 MHz
❐
3.3V = 72 mW - typ at 24 MHz
Low cycle to cycle jitter:
❐
8 MHz = 480 ps-max
❐
16 MHz = 400 ps-max
❐
32 MHz = 450 ps-max
Available in 8-pin SOIC and TSSOP packages
Commercial and industrial temperature ranges
Printers and MFPs
LCD panels
Digital copiers
PDAs
CD-ROM, VCD, and DVD
Networking, LAN, and WAN
Scanners
Modems
Embedded digital systems
■
■
■
Benefits
■
■
■
Peak EMI reduction by 8 to 16 dB
Fast time to market
Cost reduction
■
■
Logic Block Diagram
300K
XIN
1
8pF
REFERENCE
DIVIDER
PD and
CP
LF
XOUT
8
8pF
MODULATION
CONTROL
VDD
7
VCO
COUNTE
R
VCO
VSS
2
6
INPUT
DECODER
LOGIC
3
4
COUNTER
and
MUX
5
SSCLK
FRSEL
S1
S0
Cypress Semiconductor Corporation
Document Number: 38-07112 Rev. *G
•
198 Champion Court
•
San Jose
,
CA 95134-1709
•
408-943-2600
Revised October 22, 2008
CYPRESS [ CYPRESS SEMICONDUCTOR ]
