ADSP-21487: 高性能第四代DSP
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).
ADSP-21487 特点
- 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
- 400 MHz core clock speed
- 5 Mbits of on-chip RAM
- 4 Mbits of on-chip ROM with industry standard audio decoders
- FIR, IIR, and FFT accelerators
- 16-bit wide SDR SDRAM external memory interface
- Digital Applications Interface (DAI) enabling user-definable access to peripherals including an S/P DIF Tx/Rx, and 8-channel asynchronous sample rate converter
- Fully enhanced DMA engine including scatter/gather DMA, delay line DMA
- 8 serial ports (SPORTs) supporting I2S, left-justified sample pair, and TDM modes
- 2 SPI-compatible ports supporting master and slave modes
- UART and Two-Wire Interface
- 16 Pulse Width Modulation (PWM) channels
- 3 full-featured timers
- 176 ld LQFP EPAD package
- Commercial temperature range
ADSP-21487 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
ADSP-21487 市场与应用
- 消费级AVR
- 消费类音频设备
- 汽车音响
- 高清电视音频
- Consumer AVR
- Consumer Audio
- Automotive Audio
- HDTV Audio
ADSP-21487 功能框图
ADSP-21487 型号选项
| 产品型号 | 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 产品状态: 联络ADI | 176 ld LQFP-EP (24X24 w/5.8 ep) | 176 | 商业 | Tray, 40 | - | - | 是 |
| ADSP-21487KSWZ-3B 产品状态: 联络ADI | 176 ld LQFP-EP (24X24 w/5.8 ep) | 176 | 商业 | Tray, 40 | - | - | 是 |
| ADSP-21487KSWZ-4A 产品状态: 停产 | LQFP 1.4 MM W/ THERMAL PAD | 100 | 商业 | Tray | - | - | 是 |
| ADSP-21487KSWZ-4B 产品状态: 联络ADI | 176 ld LQFP-EP (24X24 w/5.8 ep) | 176 | 商业 | Tray, 40 | - | - | 是 |
ADSP-21487 评估版和开发套件
| 产品型号 | 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 产品状态: 量产 | 评估板 | - | 1 | $ 495.00 | $ 495.00 | 是 | |
| ADZS-21489-EZBRD 产品状态: 量产 | 评估板 | - | 1 | $ 350.00 | $ 350.00 | 是 |