9ZXL1252E

12-Output DB1200ZL Derivative for PCIe Gen1–4 and UPI with 9ZXL1232E / 9ZXL1252E Write Lock Datasheet Description The 9ZXL1232E / 9ZXL1252E are second-generation, enhanced-performance DB1200ZL differential buffers. The parts are pin-compatible upgrades to the 9ZXL1232A and 9ZLX1252A, while offering a much improved phase jitter performance and an SMBus Write Lock feature for increased system security. A fixed external feedback maintains low drift for critical QPI/UPI applications. The 9ZXL1232E and 9ZXL1252E have an SMBus Write Lockout pin for increased device and system security. PCIe Clocking Architectures Supported ▪ Common Clocked (CC) ▪ Independent Reference (IR) with and without spread spectrum Typical Applications ▪ Servers ▪ Storage ▪ Networking ▪ SSDs Output Features ▪ 12 Low-Power (LP) HCSL output pairs (1232E) ▪ 12 Low-Power (LP) HCSL output pairs with 85Ω Zout (1252E) Block Diagram VDDR VDDA Features ▪ SMBus write lock feature; increases system ...