Texas Instruments Develops Single-chip DSP Coupling Math and Logic Functions for Beyond 3G Cellular Infrastructure Applications
(Top News, 6 Feb 2008)
Texas Instruments Inc. (TI) has advanced the functionality of digital signal processors (DSPs) for complex, multiprocessing Beyond 3G cellular infrastructure applications such as HSPA/HSPA+, LTE and WiMAX Wave 2 by combining the math of PHY processing with the logic of MAC processing onto a new 65nm 1GHz single-core chip—the TMS320TCI6484. Built on the TMS320C64x+ core, the new DSP also doubles acceleration, delivering improved data throughput and reduced latency for better quality of service—and potentially eliminating the need for a costly RISC co-processor—giving basestation OEMs the opportunity to either lower their system cost through chip-reduction or increase their system density supporting more carriers or channels per card.
The 23x23mm TCI6484 DSP also includes additional accelerators and peripheral interfaces, which are optimized for cellular infrastructure products. The chip also have four times the Level 2 cache memory compared with the previous generations. The TCI6484 also supports symbol rate processing at 34Mbps, making it an ideal platform for higher-density, lower-cost base stations.