932SQL456数据手册集成电路（IC）的应用特定时钟/定时规格书PDF

描述 Description

The 932SQL456 is a low power version of the CK420BQ synthesizer for Intel-based server platforms. It has 85 ohm Low-Power (LP) HCSL outputs that save 48 resistors and reduce power consumption by 50% compared to the standard CK420BQ. The 932SQL456 is driven with a 25MHz crystal for maximum performance. It generates CPU outputs of 100MHz. This device meets Separate- Reference-no-Spread (SRnS) PCIe requirements making it ideal for use in systems that need to communicate “outside the box”.

特性 Features

• Integrated 85 ohm differential terminations; saves 48 resistors compared to CK420BQ
• LP-HCSL outputs; up to 50% typical power savings compared to standard CK420BQ
• 64-pin TSSOP and VFQFPN packages; smallest board footprint
• CPU, SRC, NS_SRC and NS_SAS cycle-cycle jitter <50ps
• Output to output skew <50ps
• Phase jitter: PCIe Gen2 <2.2ps rms
• Phase jitter: PCIe Gen3 <0.7ps rms
• Phase jitter: QPI <0.3ps rms
• Phase jitter: NS-SAS <1.3ps rms using long period phase jitter method
• Available in -40° to +85°C industrial temperature range version; supports demanding operating environments