Targeted at enterprise gateway applications such as session border controllers and IP PBX gateways, Texas Instruments is offering developers a highly dense and scalable solution, including development software.
With TI’s KeyStone-based TMS320C665x multicore digital signal processors (DSPs), developers can meet the specialised gateway challenges of matching voice coding techniques, processing tone and signalling messaging, distinguishing facsimile from voice, converting legacy circuit switched connections to IP, and managing and reporting voice quality.
The DSPs provide a balanced alternative that scales for voice processing, signalling and system control. In the face of significant and unpredictable growth in SIP messaging, this can provide a highly efficient means to augment today’s solutions.
C665x multicore processors provide high scalability as well as a wide range of channel densities, making them well suited for the enterprise environment. The TMS320C6654 at 850 MHz supports up to 64 channels of G.729AB, while the TMS320C6655 at 1 GHz supports up to 128 channels of G.729AB. The TMS320C6657 at 1,25 GHz provides significant head room for applications requiring added density.
The C6657 features two 1,25 GHz DSP cores, delivering up to 80 GMACs and 40 GFLOPs, while the C6655 and C6654 single-core solutions deliver up to 40 GMACs and 20 GFLOPs and 27,2 GMACs and 13,6 GFLOPs, respectively. Under normal operating conditions, the C6657, C6655 and C6654 power numbers are at 3,5 W, 2,5 W and 2 W, respectively.
To ease application development, TI offers Telogy VoIP software modules, which are available as a free download on www.ti.com/tool/telecomlib. The company also offers easy-to-use, low-cost evaluation modules (EVMs) so developers can immediately get started designing with the DSPs.
The TMDSEVM6657L and the TMDSEVM6657LE, which includes a faster onboard emulator, include a free multicore software development kit, TI’s Code Composer Studio integrated development environment, and a suite of application/demo codes to allow programmers to quickly come up to speed on the new platform.
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