概览
描述
The 9SQ445 is a CK440Q Lite clock synthesizer for newer Intel-based server platforms. The 9SQ445 is a single-chip, PCIe Gen6 compliant device. It is designed to work as a complete clock solution, or in combination, with DB2000Q-compliant or other clock buffers to provide point-to-point clocks to multiple receiving agents.
特性
- PCIe Gen5 phase jitter < 50fs rms
- PCIe Gen6 phase jitter < 40fs rms
- 3.3V operation
- Three 100MHz dedicated output pairs with individual OE# pins
- Two MXCLK output pairs multiplexable between 100MHz and 25MHz
- One 25MHz dedicated output pair
- 85Ω differential Low-Power HCSL (LP-HCSL) outputs eliminate 24 resistors, saving 39mm2 of area
- Three selectable SMBus addresses
- Supports 0%, -0.3% and -0.5% spread-spectrum amounts
- Side-Band Interface allows real-time hardware control of all output enables
- 5 × 5 mm, 40-VFQFPN
- -40°C to +85°C operating temperature range
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视频和培训
Comparing PCI Express Gen3-7 Jitter Filters to a 12k-20M Jitter Filter
A brief comparison of PCI Express (PCIe) Gen3-7 common clock jitter filters vs. a typical 12k to 20MHz plot. Presented by Ron Wade, System Architect at Renesas.
For more information, visit the PCI Express Clocks page.
Video List
