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 Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
9UM709BGILF Active PAG48 TSSOP 48 I Yes Tube Availability
9UM709BGILFT Active PAG48 TSSOP 48 I Yes Reel Availability
9UM709BGLF Active PAG48 TSSOP 48 C Yes Tube Availability
9UM709BGLFT Active PAG48 TSSOP 48 C Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
9UM709B Datasheet Datasheet PDF 302 KB Jan 28, 2014
PCNs & PDNs
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 13, 2016
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 14, 2016
PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 27, 2016
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 12, 2015
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 21, 2015
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB Jul 20, 2015