概览
描述
The 9VRS4339 is an Intel CK-NET compatible main clock for Intel Netbooks, conforming to the CK-NET specification. It is driven with a 25MHz crystal and generates a variety of clocks, including an LCD clock. An SMBus interface allows full control of the device.
特性
- Supports Wake_On_LAN (see pin 55 pin description)
- Selectable spread % on CPU, SRC, PCI; Supports margining
- Uses external 25MHz crystal, external crystal load caps are required for frequency tuning
- CLKREQ# pins; Support SRC power management
- Low power differential clock outputs driving 100 ohm differential traces; reduced power
- Integrated 33ohm series resistors on all differential outputs; reduced board space
- CPU outputs cycle-to-cycle jitter <85ps
- SRC cycle-to-cycle jitter <85ps
- SRC meets PCIEX Gen 2 specifications
- SATA outputs cycle-to-cycle jitter <125ps
- PCI outputs cycle-to-cycle jitter <500ps
- ±100ppm frequency accuracy on all clocks
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| 指南 | PDF 296 KB | |
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