A two-chip receiver for short haul links up to 3.5 Gb/s with PIN-preamp module and CDR-DMUX

For short-haul applications, the authors present a two-chip receiver, which consists of a high-gain preamp and a high-sensitivity clock and data recovery-demultiplexer (CDR-DMUX). If the high-gain preamp is integrated into the metal can of the PIN-diode (resulting in a PIN-preamp) the space saving due to this ´autoshielding´ is significant. The gain bandwidth product of the amplifier is restricted by the coupling inside the metal can. The sensitivity of the CDR-DMCTX is possibly dependent on second-order effects like coupling to outputs (direct or via common mode).