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CK-SSCD Spread Spectrum Differential Clock
Specification
CY25823
Cypress Semiconductor Corporation • 3901 North First Street • San Jose, CA 95134 • 408-943-2600
Document #: 38-07579 Rev. *C Revised September 02, 2004
Features
• 3.3V operation
• 96- and 100-MHz frequency support
• Selectable slew rate control
• 200-ps jitter
•I
2
C programmability
•250-µA power-down current
• Lexmark Spread Spectrum for best electromagnetic
interference (EMI) reduction
• 16-pin TSSOP package
Block Diagram
Pin Configuration
Freq. Phase
Modulating
VCO
Post
CLKOUT
Detector
Charge
Pump
Waveform
DividersDivider
Feedback
Divider
PLL
VSS
VDD
Σ
M
N
Clock Input
(SSCG Output)
REFOUT
Logic
Control
SDATA
SCLK
PWRDWN
16 pin TSSOP
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VDDA
VSSA
IREF
VSSIREF
CLKOUT
CLKOUT#
VSS
VDD
CLKIN
S3
S2
S1
PWRDW N
REFOUT/SEL
SCLK
SDATA
VDDA
CLKOUT#
VSSA
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