9VRS4339BKLFT集成電路（IC）的應用特定時鐘/定時規(guī)格書PDF中文資料

General Description

The 9VRS4339B is a 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.

Output Features

? 2 – 0.8V push-pull differential CPU pairs

? 5 – 0.8V push-pull differential SRC pairs

? 1 – 0.8V push-pull differential SATA pair

? 1 – 0.8V push-pull differential DOT96/SRC pair

? 1 – 0.8V push-pull differential LCD100 pair

? 1 – 0.8V push-pull differential CPU_ITP/SRC pair

? 2 – PCI (33MHz)

? 1 – PCI_F, (33MHz) free-running

? 1 – USB_48MHz

? 1 – 48MHz

? 1 – 25MHz

? 1 – 27MHz/PCI

? 1 – 14.318MHz

Features/Benefits

? Supports Wake_On_LAN (see pin55 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 powe

? Integrated 33 ohm series resistors on all differential

outputs; reduced board space

Key Specifications

? CPU outputs cycle-to-cycle jitter <85ps

? SRC cycle-to-cycle jitter <85ps

? SRC meets PCIEX Gen2 specifications

? SATA outputs cycle-to-cycle jitter <125ps

? PCI outputs cycle-to-cycle jitter <500ps

? ±100ppm frequency accuracy on all clocks