Integrated Circuit Systems ICS874002
The ICS874002 is a high performance Differentialto-LVDS Jitter Attenuator designed for use in PCI HiPerClockS™ Express™ systems. The ICS874002 has 3 PLL bandwidth modes: 200KHz, 400KHz, and 800KHz. The 200KHz mode will provide maximum jitter attenuation, but with higher PLL tracking skew and spread spectrum modulation from the motherboard synthesizer may be attenuated.| Part No. | ICS874002 |
|---|---|
| Datasheet | ICS874002 Download |
| Manufacturer |  Integrated Circuit Systems |
| Description | PCI EXPRESS JITTER ATTENUATOR |
| Buy | Stock & Price |
FEATURES
● (2) Differential LVDS output pairs● (1) Differential clock input
● CLK and nCLK supports the following input types: LVPECL, LVDS, LVHSTL, SSTL, HCSL
● Output frequency range: 98MHz - 160MHz
● Input frequency range: 98MHz - 128MHz
● VCO range: 490MHz - 640MHz
● Cycle-to-cycle jitter: 50ps (maximum) design target
● 3.3V operating supply
● 3 bandwidth modes allow the system designer to make jitter attenuation/tracking skew design trade-offs
● 0°C to 70°C ambient operating temperature
GENERAL DESCRIPTION
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. 400KHz provides an intermediate bandwidth that can easily track triangular spread profiles, while providing good jitter attenuation. 80...
