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CY25100SXC-061

Description
Clock Generators u0026 Support Products PREMIS SSCG EMI Reduction
Categorysemiconductor    Analog mixed-signal IC   
File Size2MB,18 Pages
ManufacturerCypress Semiconductor
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CY25100SXC-061 Overview

Clock Generators u0026 Support Products PREMIS SSCG EMI Reduction

CY25100SXC-061 Parametric

Parameter NameAttribute value
Product CategoryClock Generators & Support Products
ManufacturerCypress Semiconductor
TypeProgrammable Clock Generators
Maximum Input Frequency30 MHz
Max Output Freq200 MHz
Number of Outputs2 Output
Operating Supply Voltage3.1 V to 3.4 V
Operating Supply Current35 mA
Maximum Operating Temperature+ 70 C
Minimum Operating Temperature0 C
Mounting StyleSMD/SMT
Package / CaseSOIC-8
PackagingTube
Unit Weight0.019048 oz
CY25100
Field and Factory Programmable
Spread Spectrum Clock Generator for EMI Reduction
Field and Factory Programmable Spread Spectrum Clock Generator for EMI Reduction
Features
Functional Description
The CY25100 is a Spread Spectrum Clock Generator (SSCG) IC
used to reduce EMI found in today’s high speed digital electronic
systems.
The device uses a Cypress proprietary PLL and Spread
Spectrum Clock (SSC) technology to synthesize and modulate
the frequency of the input clock. By frequency modulating the
clock, the measured EMI at the fundamental and harmonic
frequencies are greatly reduced. This reduction in radiated
energy can significantly reduce the cost of complying with
regulatory agency (EMC) requirements and improve
time-to-market without degrading system performance.
The CY25100 uses a factory or field-programmable
configuration memory array to synthesize output frequency,
spread percentage, crystal load capacitor, reference clock output
on/off, spread spectrum on/off function, and PD#/OE options.
The spread percentage is programmed to either center spread
or down spread with various spread percentages. The range for
center spread is from ±0.25% to ±2.50%. The range for down
spread is from –0.5% to –5.0%.
The input to the CY25100 can either be a crystal or a clock
signal. The CY25100 has two clock outputs: REFCLK and
SSCLK. The non-spread spectrum REFCLK output has the
same frequency as the input of the CY25100.
For a complete list of related documentation, click
here.
Wide Operating Output (SSCLK) Frequency Range
3 MHz to 200 MHz
Programmable Spread Spectrum with nominal 31.5 kHz
Modulation Frequency
Center Spread: ±0.25% to ±2.5%
Down Spread: –0.5% to –5.0%
Input frequency range
External Crystal: 8 to 30 MHz Fundamental Crystals
External Reference: 8 to 166 MHz Clock
Integrated Phase-Locked Loop (PLL)
Field Programmable devices available
Programmable Crystal Load Capacitor Tuning Array
Low Cycle-to-cycle Jitter
Spread Spectrum on/off function
Powerdown or Output Enable function
Commercial and Industrial temperature ranges
3.3 V operation
8-pin TSSOP and SOIC packages
Logic Block Diagram
R FB
3
XIN
C
XIN
2
XOUT
C
XOUT
P LL
w ith
M O D U LA TIO N
C O N TR O L
PR O G R A M M A B LE
C O N FIG U R A TIO N
O U TP U T
D IVID E R S
and
MUX
6
R E FC LK
7
4
P D # or O E
8
S SO N #
SS C LK
1
VD D
5
V SS
Cypress Semiconductor Corporation
Document Number: 38-07499 Rev. *L
198 Champion Court
San Jose
,
CA 95134-1709
408-943-2600
Revised November 10, 2016
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