Analog devices SHARC listing floating-point DSP "," fourth generation product

Analog devices SHARC listing floating-point DSP "," fourth generation product for in-car audio, etc.

The United States analog devices SHARC DSP "," series of fourth generation product "ADSP-2146x" series

Analog Devices DSP products division, Japan country manager Paul Wheeler

ADSP-2146x series chart. Analog data in miniature

ADSP-2146x series performance comparison table. Analog data in miniature
United States Simulator (Analog Devices) Japan Corporation-Japan analog devices on 2008-11-12, a press release, publishing its SHARC DSP "," series of 5 fourth generation "ADSP-2146x" series products (publications). The fourth generation of the kernel clock frequency up to 450MHz, floating point performance up to 2700MFLOPS. Prior to this (third generation) Max 2400MFLOPS.

The fourth generation of products, manufacturing process by 130nm micronized to 65nm, shrinking the DSP core area. Thus save space corresponding additional hardware, which improves performance. For example, for the three operations are equipped with a dedicated circuit (hardware accelerator). Chip SRAM thus increased to 5Mbit 3Mbit before. External memory connectivity using 16bit DDR2 SDRAM interface. Equipped with can 2 SHARC processor data between the high-speed transmission of chain Kou (Link Port).

In addition, equipped with a DSP kernel reduces the dimensions of the VISA program code (Variable Instruction Set Architecture). The fourth generation of the first batch of product is the 2008 listing of professional audio equipment "ADSP-21469" but this 5 products primarily intended for in-car AV equipment, digital home appliances, industrial equipment and measuring equipment, etc., has expanded its fourth generation product application scope.

In-car products working temperature range is-40 to + 105 ° c

This listing is for car audio use "ADSP-21469W/ADSP-21465W/ADSP-21462W", home theater, "" ADSP-21467 and industrial equipment and measuring instrument with the 5 product ADSP-21469. Operating temperature range in-vehicle audio system, respectively, with 3 products for the-40 to + 105 ° c,-40 ~ ADSP-21469 + 85 ℃, ADSP-21467 0 ~ + 70 ° c. Fourth generation products are equipped with finite impulse response (FIR), infinite impulse response (IIR) and fast Fourier transform (FFT) three operations using the hardware accelerator. The Accelerator can be processed in parallel with the DSP kernel three operations of any kind. Floating point performance up to 2250MFLOPS (450MHz products).

DSP kernel increased VISA function, you can order the previous execution of the same 48bit shortened to order 16/32bit, thereby reducing the code size. The actual size of the code used to decrease the 20 ~ 30%, thus saving memory capacity. Also available is not equipped with VISA function, blanket use 48bit code mode. This mode can be used in the serial interface and external memory directly between memory access (DMA) transport. Visit the company's products include: integrated 4Mbit ROM, the ROM on embedded support DTS-HD, Master Audio, Dolby Digital Plus and Dolby TrueHD decoding algorithm, such as products, has a digital transmission content protection (DTCP) functionality of the product, and is equipped with LAN to connect the car MOST of the MediaLB interface specifications.

For consumer product code common to in-car products

The product of most of the circuit and basic properties are accepted. In this connection, the company General DSP products division of Japan country manager Paul Wheeler said, "why is the use of the platform (Platform) development method". For example, for consumer audio device development introduces in-car audio algorithms landscape develops, if equipped with a memory capacity and so different, the program code may not run. But this product group regardless of what is envisaged uses and products are made by the same platform with the same code, so use DSP product manufacturers can reduce costs. On the clock frequency, Paul Wheeler said "because in-car products need to be guaranteed in the + 105¡æ, high temperature environment."

Core clock frequency, ADSP-21469W, ADSP-21465W, ADSP-21462W as 400MHz, ADSP-21467 and ADSP-21469 as 400MHz and 450MHz. Floating point performance, core clock frequency 400MHz product 2400MFLOPS, 450MHz product 2700MFLOPS. Package is 19mm x 324 Terminal PBGA. Plan in the first quarter of 2009 started sample service. 1000-volume purchase reference price, for example ADSP-21469 400 MHz products $ 28.5, $ 31.5 450MHz products.