Renesas 9ZXL1951D

The 9ZXL1951D is a second-generation, enhanced performance DB1900ZL derivative buffer. The part is a pin-compatible upgrade to the 9ZXL1951A, offering a much improved phase jitter performance. It has 8 OE# pins that can be configured via SMBus to control up to 16 of the device's 19 outputs, and is packaged in a 6 x 6 mm QFN package for maximum space savings. A fixed external feedback maintains low drift for critical QPI/UPI applications.

Key features

• 19 outputs in a 6 mm x 6 mm package
• 1 to 400 MHz fanout buffer mode
• <200 fs rms PCIe Gen4 ZDB mode
• <100 fs rms 12k-20M additive jitter @156.25 MHz as fanout buffer
• PCIe jitter cleaner mode
• LP-HCSL outputs
• Multiple SMBus addresses
• SMBus security feature – some family members
• -40C to +85C temperature range

Applications

• Server
• Instrumentation

Block diagram