ics557-05a Integrated Device Technology, ics557-05a Datasheet
ics557-05a
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ics557-05a Summary of contents
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... QUAD DIFFERENTIAL PCI-EXPRESS CLOCK SOURCE Description The ICS557-05A is a spread-spectrum clock generator that supports PCI-Express requirements used embedded systems to substantially reduce electro-magnetic interference (EMI). The device provides four differential HCSL or LVDS high-frequency outputs with spread spectrum capability. The output frequency and spread type are selectable using external pins ...
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... Down Spread Not Applicable IDT™ / ICS™ QUAD DIFFERENTIAL PCI-EXPRESS CLOCK SOURCE 20 CLKA 19 CLKA 18 CLKB 17 CLKB 16 GNDODA 15 VDDODA 14 CLKC 13 CLKC 12 CLKD 11 CLKD Output Frequency 100 100 100 100 200 200 200 200 2 PCIE SSCG ICS557-05A REV H 092407 ...
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... Powers down all PLL’s and tri-states outputs when low. Internal pull-up resistor. Provides output on, tri-states output (High = enable outputs; Low = disable outputs). Internal pull-up resistor. Connect to digital ground. Connect to +3.3 V analog supply. Connect to analog ground. 3 Pin Description ICS557-05A PCIE SSCG REV H 092407 ...
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... ICS557-05A are open source drivers and require an external series resistor and a resistor to ground. These resistor values and their allowable locations are shown in detail in the PCI-Express Layout Guidelines section. The ICS557-05A can also be configured for LVDS compatible voltage levels. See the LVDS Compatible Layout Guidelines section. =crystal ...
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... Other signal traces should be routed away from the ICS557-05A.This includes signal traces just underneath the device layers adjacent to the ground plane layer used by the device. ...
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... Dimension or Value Unit 0.5 max inch 0.2 max inch 0.2 max inch 33 ohm 49.9 ohm Dimension or Value Unit 2 min to 16 max inch 1.8 min to 14.4 max inch Dimension or Value Unit 0. max inch 0.225 min to 12.6 max inch L4 L4’ PCI-Express Load or Connector ICS557-05A PCIE SSCG REV H 092407 ...
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... IDT™ / ICS™ QUAD DIFFERENTIAL PCI-EXPRESS CLOCK SOURCE L3’ L1’ L2’ 1250 mV 1150 mV 7 Dimension or Value Unit 0.5 max inch 0.2 max inch 100 ohm 100 ohm 150 ohm R P LVDS Device Load ICS557-05A PCIE SSCG REV H 092407 ...
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... QUAD DIFFERENTIAL PCI-EXPRESS CLOCK SOURCE Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS557-05A. These ratings are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can affect product reliability ...
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... Max. Units 25 MHz 200 MHz 100 MHz 660 700 850 mV -150 250 350 550 mV 140 31.5 33 kHz 175 332 700 ps 175 344 700 3.0 ms 3.0 ms Min. Typ. Max. Units ° C/W 93 ° C/W 78 ° C/W 65 ° C/W 20 ICS557-05A REV H 092407 ...
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... Unit 0.5 max inch 0.2 max inch 0.2 max inch 33 ohm 49.9 ohm Dimension or Value Unit 2 min to 16 max inch 1.8 min to 14.4 max inch Dimension or Value Unit 0. max inch 0.225 min to 12.6 max inch L4 L4’ PCI-Express Load or Connector t OF 0.52 V 0.175 V ICS557-05A PCIE SSCG REV H 092407 ...
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... C 20-pin TSSOP 0 to +70° C 20-pin TSSOP 0 to +70° C 20-pin TSSOP -40 to +85° C 20-pin TSSOP -40 to +85° C 20-pin TSSOP -40 to +85° C 20-pin TSSOP -40 to +85° C ICS557-05A PCIE SSCG Inches* Max 0.047 0.006 0.041 0.012 0.008 0.260 0.177 0.030 8° 0.004 ...
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... ICS557-05A QUAD DIFFERENTIAL PCI-EXPRESS CLOCK SOURCE Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales 800-345-7015 408-284-8200 Fax: 408-284-2775 Corporate Headquarters Integrated Device Technology, Inc. www.idt.com © 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc ...