Semtech ships 100G CFP Gearbox IC platform for 100G optical networks

Semtech Corp., a supplier of analog and mixed-signal semiconductors, shipped its first high-bandwidth, 100-Gbps gearbox chipset for 100-Gbps CFP MSA (multi-source agreement) applications.

Semtech Corp., a supplier of analog and mixed-signal semiconductors, shipped its first high-bandwidth, 100-Gbps gearbox chipset for 100-Gbps CFP MSA (multi-source agreement) applications.

The CFP (100G form-factor pluggable) transceiver MSA defines a hot-pluggable optical transceiver form factor for 100-Gbps, high-speed Ethernet applications for data and telecommunication networks. Semtech’s Theta SR SMI10021 multiplexer (MUX) and SMI10031 demultiplexer (DEMUX) gearbox ICs provide bandwidth of up to 113Gbps to support 100GbE and the optical transport network (OTN) systems.

Semtech’s leadership in 40G solutions provides the basis for launching solutions for the 100G space. As 100G adoption accelerates and with global IP traffic set to quadruple in the next three years, Semtech’s gearbox platform is well suited to 100GbE applications and 100GBase-LR4 running 10km.

“Our Theta SR CFP gearbox ICs are an essential block in 100G CFP-compliant transponders and with samples now shipping to several regions of the world, 100Gbps systems designers can shorten their design cycles and reduce costs for widespread 100GbE deployment via CFPs,” says Dharmesh Jani, director of product marketing for Semtech’s Transport and Data Communication Group.

Semtech’s Theta SR devices form a 10x4 gearbox with user-enabled, single- or dual-polarization DQPSK precoder/decoder functions for use in CFP-compliant transponders. On the line-side, the SMI10021 10:4 multiplexer translates 10x10-Gbps lanes of electrical data and maps the lanes to 4x28.3Gbps lanes. On the client-side, the SMI10031 4:10 demultiplexer translates 4x28.3-Gbps electrical lanes of data and maps it back to 10x10-Gbps lanes. Both devices feature CAUI/MLD-compatible client-side interfaces, SPI control interfaces and temperature-sense output voltage.

The SMI10021 includes high-speed differential clock outputs for highly stable clock-data skew and low jitter, along with reference clock clean-up PLL circuitry. The SMI10031 includes quad on-chip clock and data recovery units (CDRs), along with an optional line-side deskew function for CAUI or MLD applications and an optional preskew mode that is compatible with the OIF-defined SFI-S interface.

Both devices operate from +1.2V, +1.5V, and +2.8V power supply voltages and come in a low-cost, surface-mount, full BGA-style (ball grid array) package.

Theta SR gearbox IC evaluation kits are available now, priced at $50,000. Engineering samples of the Theta SR SMI10021 MUX and SMI10031 DEMUX devices are available now, and scheduled to enter volume production in the fourth quarter of 2011.

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