Geneva, SwitzerlandSTMicroelectronics reports that it has released the industry's first system-on-chip (SoC) baseband processor for pico-cell base-station modems, the STW51000, with multi-standard software libraries, optimized for GSM, EDGE, W-CDMA, and WiMAX networks.
Designed as an extendable and cost-effective product, the STW51000 includes hardware, software, and integration tools. The device combines two quad-MAC ST140 DSP cores, a standard ARM926-EJS RISC processor core providing a total of 29000 Mops, 7500 Mips, 4800MMacs/s, 16Mb of embedded SRAM memory, dedicated turbo decoding engine (TDE) for data error correction, and convolutional decoding engine (CDE) for voice error correction for 2.5G and 3G standards, with a complete set of peripherals.
The company reports that the product results in the lowest cost-per-channel and offers channel density of 20 voice users for the 3GPP WCDMA Release 4 with a single device. And, two STW51000 can handle as many as 16 HSDPA (High-Speed Downlink Packet Access) users sharing a 14.4-Mbps throughput, while a single-device implementation can address up to two-carrier GSM/EDGE and a complete WiMAX 802.6e 10MHz PHY, set up in the TDD (Time-Division-Duplexing) mode
One chip delivers up to 1.2 GHz of quad-MAC DSP core performance and 300 MHz of ARM926 processing power. Both DSPs only run the signal processing tasks, which they are optimized for, and thus no DSP cycles are used for the control tasks. The ARM926 handles all control tasks including protocol stacks, memory management, RTOS, and drivers.
STW51000 samples, evaluation boards and tools, as well as optimized software libraries are available now. Delivered in the PBGA 569 package, the device costs $50 in volume. Click here for the data sheet.
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