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Broadcom Announces World's First CMOS 40G Serial Mux/Demux Chipset

6th March 2012

Broadcom

ES Admin

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Broadcom Corporation today introduced two new chipsets in its expanding line of 40 gigabit products. The two serial multiplex/demultiplex (mux/demux) chipsets are the world's first 40G CMOS-based solutions that enable tri-rate CFP (C-form pluggable) modules and VSR/DPSK applications (very short reach/differential phase shift keying). Both of the mux/demux chipsets take advantage of 40nm process nodes and are engineered to achieve best-in-class performance. They also deliver the industry's lowest power consumption — only two watts combined and 60 percent lower than the nearest competitor.

As demand increases for broadband consumer applications such as streaming video, and on-demand services, so does the need for advanced 40G chipsets. Further propelling 40G growth is the industry's increasing use of wave division multiplexing (WDM) and Sonet/SDH (synchronous digital hierarchy) solutions.(2) Broadcom's newest 40G chipsets are engineered to meet the demand for higher bandwidth and designed to handle a wider range of applications while reducing power consumption up to 60 percent less than the nearest competitor.

The Broadcom BCM84145 demux and BCM84146 mux chipset work together to receive and transmit data within 40G serial CFP modules. The BCM84147 demux and BCM84148 mux also receive and transmit 40G serial data and are targeted for VSR and DPSK applications. Both chipsets offer high-speed data rate support ranging from 39.8 to 44.6 Gbps. They are also available in standard 14mm x 14mm BGA (ball grid array) packages. Competing solutions require the use of ceramic packages and GPPO interfaces for high speed 40G I/Os. The use of standard BGA packaging results in a substantial decrease to the total system cost.

Key Features:

BCM84145 Demux

• Receives 40G serial data (40GbE, OC-768, or OTU-3), demultiplexes and transmits on a 4-lane system interface

• PRBS/OTU-3 frame pattern generation and detection

BCM84146 Mux

• Receives data on 4-lane system interface, multiplexes data into one transmit serial stream

• Programmable pre-emphasis and amplitude control on serial data output

• DPSK/duo-binary pre-recorders

BCM84147 Demux

• Enables replacement of older bipolar-based demux used in legacy VSR and 300-pin module market with advanced CMOS-based devices

• Equalizer for ISI compensation

• OIF compliant SFI-5.1 interface

BCM84148 Mux

• Enables replacement of older bipolar-based mux used in legacy VSR and 300-pin module market with advanced CMOS-based devices

• Programmable pre-emphasis and amplitude on serial data output

• DPSK/duo-binary pre-recorders

All chips are now sampling with production volume slated for the first half of 2012.

Market Drivers:

• 40G growth fueled by growing traffic demands and next-generation components(2)

• 40G demand is strong in routers and metro markets — spurred by 40G WDM growth(3)

• Increasing demand for 40G mux/demux CFP modules and VSR/DPSK applications