General Description
The ICS874001I-05 is a high performance Jitter Attenuator designed
for use in PCI Express™ systems. In some PCI Express systems,
such as those found in desktop PCs, the PCI Express clocks are
generated from a low bandwidth, high phase noise PLL frequency
synthesizer. In these systems, a jitter attenuator may be required to
attenuate high frequency random and deterministic jitter
components from the PLL synthesizer and from the system board.
The ICS874001I-05 has a bandwidth of 6MHz with <1dB peaking,
easily meeting PCI Express Gen2 PLL requirements.
The ICS874001I-05 uses IDT’s 3RD Generation FemtoClock®
PLL technology to achieve the lowest possible phase noise. The
device is packaged in a small 20-pin TSSOP package, making it
ideal for use in space constrained applications such as PCI Express
add-in cards.
Features
• One differential LVDS output pair
• One differential clock input
• CLK, nCLK supports the following input levels: LVPECL, LVDS,
LVHSTL, SSTL, HCSL
• Input frequency range: 98MHz to 128MHz
• Output frequency range: 98MHz to 640MHz
• VCO range: 490MHz - 640MHz
• Cycle-to-cycle jitter: 50ps (maximum)
• Full 3.3V operating supply
• PCI Express (2.5Gb/s) and Gen 2 (5 Gb/s) jitter compliant
• -40°C to 85°C ambient operating temperature
• Available in lead-free (RoHS 6) package