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9UM709

Ultra Low Power Programmable Main Clock for VIA VX900 Chipset

Ultra low power main clock for VIA VX900 chipset

Features

  • Features/Benefits:
    • Supports programmable spread percentage and frequency 
    • Uses external 14.318MHz crystal, external crystal load caps are required for frequency tuning
    • Low power differential clock outputs (No 50Ω resistor to GND needed) 
    • Programmable output skew
    • Programmable watchdog safe frequency
    • Integrated 33ohm series resistor on all differential outputs
    • Low power supply voltage support for differential outputs 
    • Meets PCIEX Gen2 specifications
    • Uses 1.5V core voltage for ultra low power design
    • Output programmable slew rate controls
  • Key Specifications:
    • CPU output cycle-cycle jitter < 85ps
    • PCIEX output cycle-cycle jitter < 125ps
    • +/- 100ppm frequency accuracy for all output clocks
    • CPU-AGP skew ~ 1.1ns typical 
    • AGP-PCIA skew ~ 1.06ns typical
    • AGP-PCIB skew ~ 1.46ns typical
    • CPU1-PCIA skew ~ 2.16ns typical
    • CPU1-PCIB skew ~ 2.46ns typical

Product Specification

Outputs (#)Output TypeOutput Freq Range (MHz)Input Freq (MHz)Core Voltage (V)Output Voltage (V)Chipset ManufacturerChipset Name
17HCSL14.318000 - 300.00000014.3181801.50.7, 1.5, 3.3ViaVX900

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
9UM709BGILFActivePAG48TSSOP48IYesTubeCheck Availability
9UM709BGILFTActivePAG48TSSOP48IYesReelCheck Availability
9UM709BGLFActivePAG48TSSOP48CYesTubeCheck Availability
9UM709BGLFTActivePAG48TSSOP48CYesReelCheck Availability

Documents

Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
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9UM709B Datasheet Datasheet PDF 302 KB Jan 29, 2014
PCNs & PDNs
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PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 14, 2016
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PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 15, 2016
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PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 28, 2016
show all (6)
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PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 13, 2015
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PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 22, 2015
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PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB Jul 21, 2015