Overview
The ADSP-21489BSWZ-3B, produced by Analog Devices Inc., is a high-performance digital signal processor (DSP) from the fourth generation of the SHARC (Super Harvard Architecture Single-Chip Computer) processor family. This processor is designed to deliver exceptional performance and is particularly suited for high-demand applications such as automotive audio, industrial control, and various other high-performance audio and signal processing tasks.
The ADSP-21489 features a 450 MHz core clock speed, achieving 2700 MFLOPs, and includes advanced processing blocks like FIR, IIR, and FFT accelerators. It also supports both 32-bit fixed-point and 32-/40-bit floating-point arithmetic formats, making it highly versatile for different application requirements.
Key Specifications
| Specification | Details |
|---|---|
| Core Clock Speed | 450 MHz |
| Performance | 2700 MFLOPs |
| On-chip RAM | 5 Mbits |
| External Memory Interface | 16-bit wide SDR SDRAM |
| Accelerators | FIR, IIR, FFT |
| Serial Ports | 8 (SPORTs) supporting I2S, left-justified sample pair, DSP Serial and TDM modes |
| SPI Ports | 2 (SPI-compatible, master and slave modes) |
| UART and Two-Wire Interface | Yes |
| PWM Channels | 16 |
| Timers | 3 full-featured timers |
| Package Options | 176 ld LQFP EPAD, 100 ld LQFP EPAD, 88 ld LFCSP |
| Temperature Ranges | Commercial and Industrial |
Key Features
- High Performance Core: The ADSP-21489 operates at a 450 MHz core clock speed, providing 2700 MFLOPs of performance.
- Advanced Processing Blocks: Includes FIR, IIR, and FFT accelerators to enhance system performance.
- Variable Instruction Set Architecture (VISA): Allows for a 20% to 30% reduction in code size and increased memory availability.
- External Memory Interface: Supports a 16-bit wide SDR SDRAM external memory interface.
- Digital Applications Interface (DAI): Enables user-definable access to peripherals, including S/PDIF Tx/Rx and an 8-channel asynchronous sample rate converter.
- Enhanced DMA Engine: Features scatter/gather DMA, delay line DMA, and direct DMA from SPORTs to external memory.
- Peripheral Support: Includes UART, Two-Wire Interface, SPI, and 16 PWM channels.
- Package Options: Available in 176 ld LQFP EPAD, 100 ld LQFP EPAD, and 88 ld LFCSP packages.
Applications
- Automotive Audio: Ideal for high-performance automotive audio systems due to its advanced audio processing capabilities.
- Industrial Control: Suitable for industrial control applications requiring high computational power and precision.
- Medical Imaging: Can be used in medical imaging applications that require high-speed signal processing.
- Communications: Applicable in various communication systems that demand robust signal processing.
- Speech Recognition and 3D Graphics: Supports applications in speech recognition and 3D graphics due to its high computational throughput.
Q & A
- What is the core clock speed of the ADSP-21489?
The core clock speed of the ADSP-21489 is 450 MHz.
- What kind of arithmetic formats does the ADSP-21489 support?
The ADSP-21489 supports 32-bit fixed-point and 32-/40-bit floating-point arithmetic formats.
- What are the key accelerators included in the ADSP-21489?
The ADSP-21489 includes FIR, IIR, and FFT accelerators.
- What type of external memory interface does the ADSP-21489 support?
The ADSP-21489 supports a 16-bit wide SDR SDRAM external memory interface.
- How many serial ports does the ADSP-21489 have?
The ADSP-21489 has 8 serial ports (SPORTs) supporting various modes such as I2S, left-justified sample pair, DSP Serial, and TDM.
- What is the Variable Instruction Set Architecture (VISA) feature in the ADSP-21489?
VISA allows for a 20% to 30% reduction in code size and increased memory availability.
- What are the package options available for the ADSP-21489?
The ADSP-21489 is available in 176 ld LQFP EPAD, 100 ld LQFP EPAD, and 88 ld LFCSP packages.
- What are the primary applications of the ADSP-21489?
The primary applications include automotive audio, industrial control, medical imaging, communications, and other high-performance signal processing tasks.
- Does the ADSP-21489 support DMA operations?
Yes, the ADSP-21489 features an enhanced DMA engine with scatter/gather DMA, delay line DMA, and direct DMA from SPORTs to external memory.
- What is the temperature range for the ADSP-21489?
The ADSP-21489 is available in both commercial and industrial temperature ranges.
