Description
The HDMP-0422 is a Single Port Bypass Circuit (PBC) with Clock and Data Recovery (CDR) capability included. This integrated circuit provides a low-cost, lowpower physical-layer solution for Fibre Channel Arbitrated Loop (FC-AL) disk array configurations. By using a PBC such as the HDMP- 0422, hard disks may be pulled out or swapped while other disks in the array are available to the system.

Features
• Supports 1.0625 GBd Fibre Channel operation
• Supports 1.25 GBd Gigabit Ethernet (GE) operation
• Single PBC/CDR in one package
• CDR location determined by choice of cable input/output
• Amplitude valid and data valid detection (Fibre channel rate only) on FM_NODE[0] input
• Equalizers on all inputs
• High-speed LVPECL I/O
• Buffered Line Logic (BLL) outputs (no external bias resistors required)
• 0.46 W typical power at VCC = 3.3 V
• 24 Pin, low-cost SSOP package

Applications
• RAID, JBOD, BTS cabinets
• One 2:1 muxes
• One 1:2 buffers
• 1 ≥ N Gigabit serial buffer
• N ≥ 1 Gigabit serial mux