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GENERALDESCRIPTION

The ICS83905I is a low skew, 1-to-6 LVCMOS / LVTTL Fanout Buffer and a member of the HiPerClockS™ family of High Performance Clock Solutions from ICS. The low impedance LVCMOS/LVTTL outputs are designed to drive 50W series or parallel terminated transmission lines. The effective fanout can be increased from 6 to 12 by utilizing the ability of the outputs to drive two series terminated lines.

FEATURES

• 6 LVCMOS / LVTTL outputs

• Outputs able to drive 12 series terminated lines

• Crystal oscillator interface

• Crystal input frequency range: 10MHz to 40MHz

• Output skew: 80ps (maximum)

• RMS phase jitter @ 25MHz, (100Hz - 1MHz): 0.26ps (typical) (VDD = VDDO = 2.5V)

Phase noise:

Offset Noise Power

100Hz..............-129.7 dBc/Hz

1kHz..............-144.4 dBc/Hz

10kHz ..............-147.3 dBc/Hz

100kHz ..............-157.3 dBc/Hz

• 5V tolerant enable inputs

• Synchronous output enables

• Operating power supply modes:

Full 3.3V, 2.5V and 1.8V,

mixed 3.3V core/2.5V output operating supply,

mixed 3.3V core/1.8V output operating supply,

mixed 2.5V core/1.8V output operating supply

• -40°C to 85°C ambient operating temperature

• Lead-Free package fully RoHS compliant