CY25822-2 Datasheet, PDF (1/9 Pages) Cypress Semiconductor – CK-SSC Spread Spectrum Clock Generator

CY25822-2
CK-SSC Spread Spectrum Clock Generator
Features
• 3.3V operation
• 48- and 66-MHz frequency support
• Selectable slew rate control
• 350-pS jitter
• I²C programmability
• 500-µA power-down current
• Spread Spectrum for best electromagnetic interference
(EMI) reduction
• 8-pin SOIC package
Block Diagram
VDD
Clock Input
SDATA
SCLOCK
PWRDWN#
Freq.
Divider
M
Logic
Control
Phase
Detector
Charge
Pump
Σ
VCO
Post
Dividers
Feedback
Divider
N
Modulating
Waveform
PLL
REFOUT
CLKOUT
(SSCG Output)
Pin Configuration
GND
C LKIN 1
8 _{*PW RDW N#}
VDD ²
GND 3
C Y 258 22-2
7 SCLOCK
6 SDATA
CLKOUT 4
5 REFOUT
* 150 K Ω P u ll-u p
Cypress Semiconductor Corporation
Document #: 38-07531 Rev. **
• 3901 North First Street • San Jose, CA 95134 • 408-943-2600
Revised March 18, 2003