ADSP-21487:  高性能第四代DSP

ADSP-21487 功能框图The fourth generation of SHARC® Processors, now includes the ADSP-21486, ADSP-21487, ADSP-21489 and offers increased performance, hardware-based filter accelerators, audio and application-focused peripherals, and new memory configurations capable of supporting the latest surround-sound decoder algorithms. All devices are pin-compatible with each other and completely code-compatible with all prior SHARC Processors. These newest members of the fourth generation SHARC Processor family are based on a single-instruction, multiple-data (SIMD) core, which supports both 32-bit fixed-point and 32-/40-bit floating-point arithmetic formats making them particularly suitable for high-performance audio applications.

The ADSP-21487 offers the highest performance – 400 MHz/2400 MFLOPs – in an LQFP package within the fourth generation SHARC Processor family. This level of performance makes the ADSP-21487 particularly well suited to address the consumer audio segment. In addition to its high core performance, the ADSP-21487 includes additional processing blocks such as FIR, IIR, and FFT accelerators to increase the total performance of the system. There is a new feature called Variable Instruction Set Architecture (VISA) that allows the code size to be decreased by 20% to 30% and increase the memory size availability. The fourth generation DSP allows the ability to connect to external memory by providing a glueless interface to 16-bit wide SDR SDRAMs.Fourth-generation SHARC Processors also integrate application-specific peripherals designed to simplify hardware design, minimize design risks, and ultimately reduce time to market. Grouped together, and broadly named the Digital Applications Interface (DAI), these functional blocks may be connected to each other or to external pins via the software-programmable Signal Routing Unit (SRU). The SRU is an innovative architectural feature that enables complete and flexible routing amongst DAI blocks. Peripherals connected through the SRU include but are not limited to serial ports, IDP, S/PDIF Tx/Rx, and an 8-Channel asynchronous sample rate converter block. The fourth generation SHARC allows data from the serial ports to be directly transferred to external memory by the DMA controller. Other peripherals such as SPI, UART and Two-Wire Interface are routed through a Digital Peripheral Interface (DPI).

技术特性
  • 400 MHz内核时钟速度
  • 5 MB片内RAM
  • 4 Mb片内ROM集成行业标准音频解码器
  • FIR、IIR和FFT加速器
  • 16位宽SDR SDRAM外部存储器接口
  • 数字应用接口(DAI)可实现用户定制访问外设,包括1个S/P DIF Tx/Rx和1个8通道异步采样速率转换器
  • 全面增强的DMA引擎,包括分散/聚集DMA、延迟线DMA
  • 8个串行端口(SPORT),支持I2S、左对齐采样对和TDM模式
  • 2个SPI兼容端口,支持主机和从机模式
  • UART和双线接口
  • 16个脉冲宽度调制(PWM)通道
  • 3个全功能定时器
  • 176 ld LQFP EPAD封装
  • 商用温度范围
技术指标
  • Clock Speed (MHz): 400MHz
  • MMACs: 800
  • On-Chip SRAM (Mbits): 5Mbit
  • Serial Ports: 8
  • not relavant: X
  • DAI: X
  • Package: LQFP-EP
应用领域
  • 消费级AVR
  • 消费类音频设备
  • 汽车音响
  • 高清电视音频
订购型号
产品型号 产品状态 封装 引脚 温度范围 包装和数量 报价*(100-499) 报价*1000 pcs RoHS
ADSP-21487KSWZ-2B - 176 ld LQFP-EP (24X24 w/5.8 ep) 176 商业 Tray, 40 - -
ADSP-21487KSWZ-3B - 176 ld LQFP-EP (24X24 w/5.8 ep) 176 商业 Tray, 40 - -
ADSP-21487KSWZ-4A 停产 LQFP 1.4 MM W/ THERMAL PAD 100 商业 Tray - -
ADSP-21487KSWZ-4B - 176 ld LQFP-EP (24X24 w/5.8 ep) 176 商业 Tray, 40 - -
开发工具
产品型号 产品状态 封装 引脚 温度范围 包装和数量 报价*(100-499) 报价*1000 pcs RoHS
ADZS-21489-EZBRD 量产 评估板 -   1 $ 495.00 $ 495.00
ADZS-21489-EZBRD 量产 评估板 -   1 $ 350.00 $ 350.00
ADSP-21487 应用技术支持与电子电路设计开发资源下载
  1. ADSP-21487 数据手册DataSheet 下载 . pdf
  2. ADI 模拟器件公司比较器产品选型指南 . pdf
  3. Analog Devices, Inc. 美国模拟器件公司产品订购手册 .pdf
  4. ADSP-21367 / ADSP-21368 / ADSP-21369 / ADSP-21371 / ADSP-21375 硬件使用手册 . pdf
  5. SHARC 处理器进阶手册 . pdf