Sierra Monolithics, a supplier of ICs and modules for analog and RF applications, has extended its family of 40G serializer/deserializer (SerDes) components with the launch of the SMI4029 multiplexer with clock multiplier unit (CMU) and SMI4039 demultiplexer with clock and data recovery (CDR).
Sierra Monolithics claims it to be the first 40G differential quadrature phase shift keying (DQPSK) devices to be packaged in small-form-factor surface-mount technology (SMT).
The company also claims that its integrated Mux and Demux devices deliver data rates from 39.8Gbps to 44.6Gbps while also incorporating on-chip, user-enabled DQPSK precoding to make them resilient to impairments encountered in fiber and optical add-drop multiplexers in backbone and metro/regional networks.
The company said that the new devices are fabricated in IBM’s 8HP silicon germanium (SiGe) bipolar complementary metal oxide semiconductor (BiCMOS) process technology to reduce power consumption. They use compact surface-mount technology (SMT) to eliminate the cost of alternative metal packages with microwave connectors.
Craig Hornbuckle, vice president of systems engineering at Sierra Monolithics, said: “At half the power consumption of our previous-generation 40G DQPSK SerDes devices, the SMI4029 and SMI4039 solutions deliver breakthrough power efficiency, high performance and superior resiliency in a package that will enable rapid commercial deployment of significantly smaller, lower-cost 40G transponders.”
