ADSP-21486: 高性能第四代DSP
第四代SHARC® 处理器系列, 现在包括 ADSP-21486, ADSP-21487, ADSP-21489具有更高的性能，提供硬件型滤波器加速器、音频和应用专用外设，其新型存储器配置可支持最新环绕声解码器算法。所有器件均相互引脚兼容，且与以前的所有SHARC处理器全代码兼容。第四代SHARC处理器系列的这些最新成员基于一款单指令多数据(SIMD)内核制成，支持32位定点和32/40位浮点算法格式，是高性能音频应用的理想选择。
ADSP-21486提供最高性能——400 MHz/2400 MFLOP——采用LQFP封装，是第四代SHARC处理器系列中的一员。这一性能水平使ADSP-21486成为消费音频应用的理想之选。ADSP-21486不但拥有较高的内核性能，而且内置了FIR、IIR和FFT加速器等额外的处理模块，可以大幅提升系统的整体性能。可变指令集架构(VISA)是其特色新功能之一，可使代码减少20%至30%，从而提高存储器的可用性。ADSP-21486是无需添加外部DRAM存储器组件的应用的理想选择。
第四代SHARC处理器同时集成应用专用外设，有利于简化硬件设计、减少设计风险并最终缩短上市时间。这些功能模块被称为数字应用接口(DAI)，可以相互连接，也可连接通过软件可编程信号路由单元(SRU)连接至外部引脚。SRU是一种新型架构，可在DAI模块间实现完全、灵活路由。可通过SRU连接的外设包括但不限于串行端口、IDP、S/PDIF Tx/Rx和8通道异步采样速率转换器模块。第四代SHARC可将来自串行端口的数据通过DMA控制器直接传输到外部存储器。SPI、UART、双线接口等其他外设通过数字外设接口(DPI)路由。
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-21486 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-21486 particularly well suited to address the consumer audio segment. In addition to its high core performance, the ADSP-21486 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 ADSP-21486 is ideal for applications that do not need the burden of adding an external DRAM memory component.
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-21486 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
- 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、DSP串行和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和100 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
- 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, DSP Serial 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 and 100 ld LQFP EPAD packages
- Commercial temperature range
ADSP-21486 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-21486 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-21486 功能框图
ADSP-21486 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-21486KSWZ-2B 产品状态: 联络ADI | 176 ld LQFP-EP (24X24 w/5.8 ep) | 176 | 商业 | Tray, 40 | - | - | 是 |
| ADSP-21486KSWZ-3A 产品状态: 联络ADI | 100 Ld LQFP(14x14 w_6mm_heatsink) | 100 | 商业 | Tray, 90 | - | - | 是 |
| ADSP-21486KSWZ-3B 产品状态: 联络ADI | 176 ld LQFP-EP (24X24 w/5.8 ep) | 176 | 商业 | Tray, 40 | - | - | 是 |
| ADSP-21486KSWZ-4A 产品状态: 联络ADI | 100 Ld LQFP(14x14 w_6mm_heatsink) | 100 | 商业 | Tray, 90 | - | - | 是 |
| ADSP-21486KSWZ-4B 产品状态: 停产 | LQFP 1.4 MM W/ THERMAL PAD | 176 | 商业 | Tray, 40 | - | - | 是 |
ADSP-21486 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 |