9UM709

描述

Ultra low power main clock for VIA VX900 chipset

特性

• 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

产品对比

应用