12-Output DB1200ZL PCIe Zero-Delay/Fanout Clock Buffer with SMBus Write Protection

The 9ZXL1232E is a second-generation, enhanced-performance DB1200ZL differential buffer. The part is a pin-compatible upgrade to the 9ZXL1232A 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 has an SMBus Write Lockout pin for increased device and system security.