The 40 Gbit/s transceiver chipset (MUX+FIFO and CDR+DEMUX) provide highly integrated SerDes (SERializer-DESerializer) functionality with a 1:16 ratio. The 16 times 2.5 Gbit/s data signals are multiplexed to a single serial 40 Gbit/s data stream and vice versa. The devices support datarates from 39.8 Gbit/s up to 43 Gbit/s (OC-768/STM-256) with optional FEC (Forward Error Correction). All four chips are manufactured in Infineon's leading-edge Silicon-Germanium B7HF technology enabling low power consumption.

FEATUREs
■ Supports data rates from 39.8 Gbit/s to 43 Gbit/s
■ Infineon's leading-edge SiGe B7HF technology
■ 1:16 (= 1:2 and 2:16) and 16:1 multiplexing ratio
■ On-chip VCO, external VCO input available
■ 622 MHz or 2.5 GHz reference clock
■ Adjustable sampling threshold and phase
■ Integrated pre-amplifier with high input sensitivity
■ Selectable 20 GHz and 40 GHz output clock
■ FIFO depth of 6 Bits

Typical Applications
■ Fiber optics telecom and datacom applications
■ SONET/SDH OC-768/STM-256 with and without FEC

Main Advantages
■ Data rate from 39.8 Gbit/s up to 43 Gbit/s
■ SiGe chipset providing complete functionality: CMU, CDR, FIFO and VCO
■ Single supply voltage of 5.5 V
■ High CDR sensitivity with adjustable sampling
■ On-chip VCO together with external VCO input MUX Evaluation Board