Integration (September 1998) is available in HTML and
PDF format. - 462KB In This Issue Special Focus on DSP/Analog Seminars
Analog and Mixed-Signal
Memory
Networking
News Briefs
Resource Guide
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New DSPs combine low power dissipation with high performance in a small space
The devices are progressive evolutions of the same core code-compatible architecture. Each one has greater integration of on-chip memory, with 32K and 64K words of on-chip RAM, respectively. The roadmap for this generation has plans for DSPs with even more on-chip RAM. Both DSPs feature the lowest power dissipation of any DSP available today. At 100 MIPS, these devices dissipate only 0.45 mA/MIPS. With a core supply voltage of 2.5 V, the power dissipation is less than 115 mW using on-chip resources. The 'C549 and 'C5410 are well suited to applications such as computer telephony voice-processing equipment, voice-over internet protocol (VOiP) gateways, digital and small office/home office (SOHO) PBX systems, and wireless local loop, LAN and digital PBX systems. In addition, these DSPs can be used in space-constrained applications such as digital radios and portable information appliances, which require DSP performance at low power. The 'C5410 features two new peripherals: the Multi-Channel Buffered Serial Port (McBSP) and the DMA (direct memory access) controller. The McBSP enables full-duplex, bi-directional communication and direct interface to T1/E1 frames or H.100 telephony standards. It supports multi-channel transmit-and-receive up to 128 channels and data sizes from 8 bits to 32 bits. The six-channel DMA controller adds flexibility and enhanced performance. The peripherals operate independently of the CPU, maximizing the efficiency of the device. Samples and production quantities of the 'C549 are available now. Samples of the 'C5410 are planned for October 1998, and production quantities are scheduled to be available in 2Q99. Pricing for production quantities of 10,000 is $25* for the 100-MIPS 'C549 and expected to be $29.85 for the 100-MIPS 'C5410. Pricing in U.S. dollars. The 'C549 and 'C5410 are available in TQFP (thin quad flat pack) and microStar BGA™ packages.
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Two new digital signal processors (DSPs) from Texas Instruments combine the industry's lowest power dissipation with 100 MIPS of performance into a package the size of a thumbnail. These power-efficient, ultra-small DSPs, the TMS320C549 and the recently disclosed TMS320C5410, will allow designers of wireless and wireline communications systems to provide more channels per watt than any other DSPs on the market.