Overview
The ADSP-21488KSWZ-3B is a high-performance digital signal processor (DSP) from Analog Devices Inc., part of the fourth generation of SHARC (Super Harvard Architecture) processors. This processor is optimized for high-performance audio applications and industrial control segments, offering enhanced performance, hardware-based filter accelerators, and advanced peripherals. The ADSP-21488KSWZ-3B operates at a core clock speed of 400 MHz and supports both 32-bit fixed-point and 32-/40-bit floating-point arithmetic formats, making it particularly suitable for demanding audio processing tasks.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Clock Speed | 400 MHz |
| On-chip RAM | 3 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-Lead LQFP EPAD, 100-Lead LQFP EPAD |
| Temperature Range | Commercial and Industrial |
Key Features
- High-Performance Core: Single-instruction, multiple-data (SIMD) computational architecture supporting 32-bit fixed-point and 32-/40-bit floating-point arithmetic formats.
- Hardware Accelerators: FIR, IIR, and FFT accelerators to enhance system performance.
- 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: Includes scatter/gather DMA, delay line DMA, and direct DMA from serial ports to external memory.
- Peripheral Interfaces: SPI, UART, Two-Wire Interface, and 16 Pulse Width Modulation (PWM) channels.
- Variable Instruction Set Architecture (VISA): Reduces code size by 20% to 30% and increases memory size availability.
- Signal Routing Unit (SRU): Allows flexible routing amongst DAI blocks.
Applications
- Automotive Audio: Suitable for high-performance automotive audio systems, including surround-sound decoder algorithms.
- Industrial Control: Ideal for industrial control applications requiring high computational power and advanced peripherals.
- Audio Processing: Optimized for various audio processing tasks, including professional audio equipment and consumer electronics.
Q & A
- What is the core clock speed of the ADSP-21488KSWZ-3B?
The core clock speed is 400 MHz.
- How much on-chip RAM does the ADSP-21488KSWZ-3B have?
The ADSP-21488KSWZ-3B has 3 Mbits of on-chip RAM.
- What types of accelerators are included in the ADSP-21488KSWZ-3B?
The processor includes FIR, IIR, and FFT accelerators.
- How many serial ports does the ADSP-21488KSWZ-3B have?
The processor has 8 serial ports (SPORTs).
- What is the Digital Applications Interface (DAI) in the ADSP-21488KSWZ-3B?
The DAI enables user-definable access to peripherals including S/PDIF Tx/Rx and an 8-channel asynchronous sample rate converter.
- Does the ADSP-21488KSWZ-3B support direct DMA from serial ports to external memory?
Yes, it supports direct DMA from serial ports to external memory.
- What is the Variable Instruction Set Architecture (VISA) feature in the ADSP-21488KSWZ-3B?
VISA reduces code size by 20% to 30% and increases memory size availability.
- What are the package options for the ADSP-21488KSWZ-3B?
The package options include 176-Lead LQFP EPAD and 100-Lead LQFP EPAD.
- What are the typical applications of the ADSP-21488KSWZ-3B?
Typical applications include automotive audio, industrial control, and high-performance audio processing.
- Is the ADSP-21488KSWZ-3B compatible with previous SHARC processors?
Yes, it is code-compatible with all prior SHARC processors.
