Features
- Four 0.7V current-mode differential HCSL output pairs
- PCIe Gen 3 jitter < 0.6ps RMS in ZDB mode
- PCIe Gen 4 additive jitter < 0.1ps RMS in fanout mode
- SPS internal receiver bias network keeps the input clock parked when input is floating
- Supports both 85Ω and 100Ω output impedance with appropriate resistor selection
- OE# pins default to controlling outputs
- Supports zero delay buffer mode and fanout mode
- Selectable PLL bandwidth; minimizes jitter peaking in downstream PLLs
- Spread spectrum compatible
- Three selectable SMBus addresses
Description
The 9DB436 is a zero delay/fanout buffer for PCI Express™ clocking. It supports PCIe Gen 1–3 in zero delay mode and PCIe Gen 1–4 in fanout mode. The 9DB436 also features a Safe Power Sequence (SPS) clock input. The 9DB436 is a pin-compatible upgrade to the 9DB433 and 9DB434.
Applications
- Riser cards
- Storage
- Networking
- JBOD