MIPs for telecomms

Analog Devices is now sampling two low cost ADSP-219x models – the 2195 and 2196, expanding its family of ADSP-21xx code compatible digital signal processors.

Analog Devices is now sampling two new low cost ADSP-219x models – the ADSP-2195 and ADSP-2196, expanding the family of ADSP-21xx code compatible digital signal processors (DSPs).

The ADSP-2195 integrates 32K words of on-chip SRAM and 16K words of on-chip program ROM. The ADSP-2196 integrates 16K words of on-chip SRAM and 16K words of on-chip program ROM.

Customers can arrange to have the ROM programmed with application-specific code eliminating the need for an external memory device. This feature greatly reduces system cost for modems, Internet protocol (IP) phones, integrated access devices (IADs), set top boxes, speakerphones, video conferencing and other client-side telecommunications applications.

Since the two devices are pin-compatible with ADI’s recently-announced ADSP-2191, designers can develop multiple end products using a common hardware platform for very fast transition to full-scale production. Furthermore, the ROM on the ADSP-2195 and ADSP-2196 DSPs is directly mapped into the program memory RAM region on the ADSP-2191.

This feature enables developers to create custom applications on the ADSP-2191 and deploy these applications to the on-chip ROM of the new devices, with confidence that the code will execute exactly as it was specified. This unique feature in the ADSP-219x family eliminates the risk of increased latency, which frequently impacts the performance of other ROM-based DSPs.

Both devices are 16-bit, fixed-point DSPs that include a ROM security option, three serial ports, two serial peripheral interface (SPI) ports, a direct memory access (DMA) controller, one UART port, general-purpose programmable flag pins, and a 16-bit parallel and 16-bit host port interface.

The ADSP-2195 and ADSP-2196 are both supported by CROSSCORE, Analog Devices’ range of DSP software and hardware development tools. Available immediately, the ADSP-2191 EZ-KIT Lite evaluation system includes an ADSP-219x DSP evaluation board and evaluation suite of VisualDSP++ release 2.0, making it easy to begin development with the ADSP-2195 and ADSP-2196.

The ADSP-2195 (Model ADSP-2195MKST-160X) is priced at $12.50 per unit in 10,000 unit volumes. The ADSP-2196 (Model ADSP-2196MKST-160X) is priced at $9.95 per unit in 10,000 unit volumes. Both products are currently available in both mini BGA and standard LQFP packages.

The ADSP-2191 EZ-KIT Lite for the ADSP-219x DSP family (Model ADDS-2191-EZLITE) evaluation system is priced at $295 and is available for delivery.

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