CY25811SCT Datasheet Download

Part No.:
CY25811SCT
Download:
Download Datasheet
Description:
[Spread Spectrum Clock Generator]
File Size:
307 K
Page:
11 Pages
Logo:
Manufacturer:
CYPRESS [ CYPRESS SEMICONDUCTOR ]
PCB Prototype
 CY25811SCT Datasheet Page:2CY25811SCT Datasheet Page:3CY25811SCT Datasheet Page:4CY25811SCT Datasheet Page:5CY25811SCT Datasheet Page:6CY25811SCT Datasheet Page:7CY25811SCT Datasheet Page:8CY25811SCT Datasheet Page:9 
CY25811/12/14
Spread Spectrum Clock Generator
Features
• 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 @ 6MHz
— 3.3V = 60 mW-typ @ 12MHz
— 3.3V = 72 mW-typ @ 24MHz
• Low cycle-to cycle jitter:
— 8 MHz = 450 ps-max
— 16 MHz = 225 ps-max
— 32 MHz = 150 ps-max
• Available in 8-pin SOIC and TSSOP packages
• Commercial and industrial temperature ranges
Applications
• Printers and MFPs
• LCD panels
• Digital copiers
• PDAs
• CD-ROM, VCD, and DVD
• Networking, LAN/WAN
• Scanners
• Modems
• Embedded digital systems
Benefits
• Peak EMI reduction by 8 to 16 dB
• Fast time to market
• Cost reduction
Block Diagram
300K
Pin Configuration
XIN
1
8pF
REFERENCE
DIVIDER
PD and
CP
LF
XIN/CLKIN
1
VSS
2
CY25811
CY25812
CY25814
8
7
6
5
XOUT
VDD
FRSEL
SSCLK
XOUT
8
8pF
MODULATION
CONTROL
VDD
7
VCO
COUNTE
R
VCO
S1
3
S0
4
VSS
2
6
INPUT
DECODER
LOGIC
3
4
COUNTER
and
MUX
5
SSCLK
8-pin SOIC/TSSOP
FRSEL
S1
S0
Cypress Semiconductor Corporation
Document #: 38-07112 Rev. *E
3901 North First Street
San Jose
,
CA 95134
408-943-2600
Revised June 03, 2004