Date: 09/10/2008

Floating point DSP processor with DDR2 SDRAM memory interface

Analog Devices launched the fourth generation of SHARC digital signal processors, the ADSP-21469. The new device provides more than 60% increase in on-chip memory and doubles previous SHARC performance with inclusion of hardware accelerators and audio-application boosting features.

The key features are listed below:

1. High-speed DDR2 SDRAM external memory interface.
2. Offers link ports that enable data transfers between two SHARC processors, and provide a parallel command interface for faster data movement than is enabled by the processors' serial peripheral interface (SPI).
3. Operates at up to 450 MHz/2700 MFLOPS.
4. Optimized for pro audio applications such as studio recording equipment, high-end effects processors, commercial audio, and modeling applications.
5. Addition of hardware accelerators for signal processing operations like FIR, IIR and FFT.
6. 5Mbits of on-chip SRAM enables faster, more efficient execution of effects processing.
7. A reduction in instruction opcode size frees up as much as 30% of the on-chip memory for application code storage.
8. Code-compatible with prior generation SHARC processors.
9. Development tools such as ADI's CROSSCORE software and hardware tools can be used.

Availability: The SHARC ADSP-21469 will be available to sample in Q1 2009.

Pricing: Per-unit pricing is $31.50 in quantities of 1K.

To learn more, visit: http://www.analog.com/2146x