Beijing, January 22, 2015 - Broadcom, Inc. (NASDAQ: BRCM), a global leader in innovative solutions for wired and wireless communications, today announced the industry's first high-speed 4th-order pulse-amplitude modulation (PAM-4) physical layer Transceivers (PHYs). The new PAM-4 physical layer transceivers enable 40/50 Gb (Gbps) per second transmission rates on a variety of physical media, including direct-attached cables (DACs) and fiber. For more news, please visit the Broadcom Press Room.
In response to rapidly growing video and data traffic, the demand for higher speed and higher bandwidth infrastructure is also growing. As a result, system-level OEMs are looking for solutions that optimize 40/100Gb Ethernet. Based on PAM-4 technology, Broadcom BCM82040 and BCM82004 are the first 40/50/100Gb Ethernet chips that have been specifically optimized to meet the above requirements.
Lorenzo Longo, vice president and general manager of the physical layer product division, said: "Broadcom's new PAM-4 physical layer chip provides an ideal solution for OEMs and data center operators seeking low cost and low power. The launch demonstrates Broadcom's commitment to exploring new technologies such as PAM-4 and further strengthens Broadcom's position as a leader in the wired physical layer device industry."
The BCM82040 and BCM82004 physical layer chips using the 28nm (nm) process can transfer more bits of data per symbol, enabling higher data throughput rates for existing low bandwidth channels. PAM-4 technology enables 40Gbps transmission speeds at 20Gbaud baud rates, improves signal integrity, and reuses existing channels to increase data throughput and enable low-cost cable and fiber applications. The PAM-4 line coding in the new physical layer chip requires only half the bandwidth of the non-return-to-zero (NRZ) line coding, which improves the data throughput and reduces the overall cost and power consumption of the system.
Compared to the 8 pairs of media used in existing 4x10G four-channel small form-factor pluggable (QSFP) cables, both chips are designed to transmit and receive 40/50G data over two pairs of media. In 40G fiber applications, the BCM82040 reduces the number of optical components and fibers required by a factor of four and eliminates the need for expensive components, further reducing cost and power consumption.
Main features:
Single 40/50Gb Ethernet physical layer transceiver for 40/50G serial transceiver on multiple media
Supports multiple digital-to-analog converters (DACs) from multiple vendors
Single mode (SMF) / multimode (MMF) fiber and silicon optoelectronic technology
Low power 28 nm (nm) CMOS design
7x7mm small package for QSFP+, cable assemblies and optical modules
Time to market:
The Broadcom PAM-4 physical layer is available in two chips. The BCM82040 is optimized for 40/50 Gbps transmission rates using fiber optics. The BCM82004 is optimized for 40/50 Gbps transmission rates using direct-attached cables (DACs). Both chips are currently sampling.
About Broadcom:
Broadcom Corporation (Nasdaq: BRCM), one of the Fortune 500 companies, is an outstanding technology innovator and leader in the global wireline and wireless communications semiconductor industry. Its products assist in the delivery of voice, video, data and multimedia throughout the home, business and mobile environments. Broadcom offers the industry's most complete line of advanced system-on-a-chip and embedded software solutions for manufacturers of information and networking equipment, digital entertainment and broadband access products and mobile devices. The corporate philosophy of Broadcom's "ConnecTIng Everything®" is changing the world.
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