ICST ICS557-05A
The ICS557-05A is a spread-spectrum clock generator that supports PCI-Express requirements. It is used in PC or embedded systems to substantially reduce electro-magnetic interference (EMI). The device provides four differential HCSL or LVDS high-frequency outputs with spread spectrum capability.| Part No. | ICS557-05A |
|---|---|
| Datasheet | ICS557-05A Download |
| Manufacturer |  ICST |
| Description | Quad Differential PCI-Express Clock Source |
| Buy | Stock & Price |
DESCRIPTION
The output frequency and spread type are selectable using external pins.FEATURES
●●
●
●
●
●
●
●
●
●
● Packaged in 20-pin TSSOP Available in Pb (lead) free package Supports PCI-Express applications Four differential spread spectrum clock outputs Spread spectrum for EMI reduction Uses external 25 MHz clock or crystal input Power down pin turns off chip OE control tri-states outputs Spread and frequency selection via external pins Spread Bypass option available Industrial temperature range available Block Diagram VDD 2 PD OE SEL[2:0] 3 Spread Spectrum/ Output clock selection Spread Spectrum Circuitry CLKOUTA 25 MHz crystal or clock X1 Clock Oscillator X2 CLKOUTA CLKOUTB PLL Clock Synthesis CLKOUTB CLKOUTC CLKOUTC CLKOUTD CLKOUTD 2 GND Rr(IREF) Optional tuning crystal capacitors MDS 557-05A E Integrated Circuit Systems, Inc.
● 1 525 Race Street, San Jose, CA 95126
● Revision 011606 tel (408) 297-1201
● ICS557-05A Quad Differential PCI-Express Clock Source Pin Assignment VDDXD...
