Description
The 9QXL2001C is an enhanced-performance 9QXL2001B with
ultra-low-additive phase jitter for PCIe Gen5, Gen6 and UPI
applications. The 9QXL2001C also reduces propagation delay by
approximately 50% with respect to the 9QXL2001B.
PCIe Clocking Architectures
▪ Common Clocked (CC)
▪ Independent Reference (IR) – SRNS, SRIS
Typical Applications
▪ Servers, Storage, Networking, Accelerators
Key Specifications
▪ Output-to-output skew: < 50ps
▪ PCIe Gen5 additive phase jitter: 6fs RMS
▪ PCIe Gen6 additive phase jitter: 4fs RMS
▪ DB2000Q additive phase jitter: 10fs RMS
▪ 12kHz–20MHz additive jitter: 23fs RMS at 156.25MHz
▪ Propagation delay: 1.4ns typical

Features
▪ 8 OE# pins provide hardware control of 8 outputs
▪ SMBus allows software control of each output
▪ 25MHz Side-Band Interface allows real-time control of all 20
outputs
▪ Outputs remain Low/Low when powered up with floating input
clock
▪ Power Down Tolerant (PDT) inputs
▪ 85Ω Low-Power HCSL (LP-HCSL) outputs:
• Eliminate 80 resistors, saving 130mm2 of area
• Power consumption reduced by 50%
▪ 9 selectable SMBus addresses
▪ Spread spectrum compatible
▪ 6 × 6 mm dual-row 80-GQFN
▪ -40° to +105°C, 3.3V ±10% operation
Output Features
20 Low-Power HCSL (LP-HCSL) 85Ω output pairs