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Baseband processor runs 600MHz at <10W

Posted: 19 May 2010 ?? ?Print Version ?Bookmark and Share

Keywords:processor? baseband? base station? 3G? LTE?

Mindspeed Technologies Inc. has launched two new members of the Transcede family of wireless baseband processors designed for mobile networks, from picocells and enterprise femtocells to the largest macrocell implementations.

The expanded 3G/4G/LTE processor family includes the Transcede 3000, which is designed for small-cell 3G and 4G base stations supporting up to 32 users, and the Transcede 4005, which is designed for 3G and 4G macrocell developers who want to combine its high-performance Layer 1 (L1) PHY processing capabilities with an existing Layer Two (L2) media access control (MAC) processing solution. All other Transcede processors combine L1 PHY and L2 MAC functionality on the same device to deliver the lowest possible system latency.

"Next-generation 3G/4G/LTE mobile networks will require many different equipment platforms, from picocells and enterprise femtocells that might only support a handful of subscribers, to large macrocells capable of serving hundreds or even thousands of subscribers," said Alan Taylor, marketing director for Mindspeed's multiservice access business unit. "We have addressed this challenge with a comprehensive family of Transcede devices that enable designers to leverage a common software architecture and programming model so they can speed and simplify the development of a wide variety of platforms. Our two, compelling new application-specific SoCs serve two distinct new performance points for small picocells/enterprise femto and large macrocells."

Transcede family devices include the very latest Cortex A9 multi-core symmetric multiprocessing RISC processors from ARM, coupled with the latest DSPs from CEVA. Transcede family devices also include built-in hardware accelerators for important fixed functions such as 4G FEC, IPSec and radio ciphers, along with other key system features such as PCIe and dual gigabit Ethernet to further reduce system costs.

The devices are also designed to use the same open software architecture across many product family members, with different price and performance points. Software developed on one Transcede device can be ported to other family members across the full range of system platforms, including enterprise femtocell, picocell (indoor and outdoor), microcell and macrocell base stations.

In addition, Transcede processing cores are optimized for power efficiency and proven in wireless handset applications. Additionally, built-in power management capabilities clock down processing operations to reduce power consumption during low-traffic periods.

The Transcede 3000 combines five CEVA DSPs and a single ARM Quad Core Cortex A9 processor core, and runs at 600MHz with less than 10W typical power consumption. It is architected to meet the complete eNodeB processing needs of a small picocell. The high level of system integration included in the Transcede 3000 can dramatically reduce the system cost of such small base stations.

The Transcede 4005, with 10 CEVA DSPs and 10 Mindspeed application processors, runs at 750MHz and delivers the PHY processing performance needed in large 3G/4G/LTE macrocells. In addition, a rich set of high-performance I/O interfaces provides flexibility in overall system design.

Both the Transcede T3000 and T4005 SoCs will be available in sample quantities in July and are packaged in 31mm? high-performance flip-chip ball grid arrays (HFC-BGAs). Pricing in OEM volumes of 10,000 is $180 for the Transcede T3000 and $250 for the Transcede T4005.

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