The 28G BER Receiver is for R&D or production testing of emerging high speed protocols from 13 to 28 Gbps, including 100 Gigabit Ethernet, 40G Differential Quadrature Phase Shift Keying (DQPSK), 14G Fibre Channel, and 100G Dual-Polarization Quadrature Phase Shift Keying (DP-QPSK). The reference design helps to accelerate time-to-market for Test & Measurement vendors designing next generation 28G test platforms. For high speed data links, BER testing is the most fundamental test at the physical layer, as it measures whether the data bits are correctly transmitted across the link. BERT systems for speeds up to 12.5 Gbps are well established. The Inphi 28G BER Receiver reference design addresses the challenge of designing a high speed front-end at 28 Gbps, and integrates an Inphi chipset in a proven, high performance, and reliable design