Overview
The ADSP-21489KSWZ-4A is a high-performance digital signal processor (DSP) from Analog Devices Inc., part of the fourth generation of the SHARC (Super Harvard Architecture) family. This processor is optimized for high-performance audio applications, featuring a single-instruction, multiple-data (SIMD) computational architecture. It is code-compatible with other members of the SHARC family, including the ADSP-2126x, ADSP-2136x, ADSP-2137x, ADSP-2146x, ADSP-2147x, and ADSP-2116x DSPs, as well as the first-generation ADSP-2106x SHARC processors in SISD mode. The processor includes unique audio-centric peripherals and is designed to eliminate I/O bottlenecks with multiple internal buses and a digital applications interface (DAI).
Key Specifications
| Parameter | Value |
|---|---|
| Core Clock Speed | 450 MHz |
| On-chip RAM | 5 Mbits |
| Package Type | 100-lead LQFP-EP |
| Temperature Range | 0°C to +110°C |
| Instruction Set Architecture | SIMD (Single-Instruction, Multiple-Data) |
| Arithmetic Formats | 32-bit fixed-point, 32-/40-bit floating-point |
| External Memory Interface | 16-bit wide SDR SDRAM |
| Interfaces | I2C, SPI, UART, S/PDIF Transceiver, TWI |
| Pulse Width Modulation (PWM) Channels | 16 |
| Timers | 3 full-featured timers |
Key Features
- High-Performance Audio Processing: Optimized for high-performance audio applications with FIR, IIR, and FFT accelerators.
- Code Compatibility: Source code compatible with other SHARC family members and first-generation ADSP-2106x SHARC processors in SISD mode.
- 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 and delay line DMA.
- Serial Ports: 8 serial ports (SPORTs) supporting I2S, left-justified sample pair, DSP Serial, and TDM modes.
- Additional Interfaces: SPI-compatible ports, UART, and Two-Wire Interface.
- Variable Instruction Set Architecture (VISA): Reduces code size by 20% to 30% and increases memory size availability.
Applications
The ADSP-21489KSWZ-4A is particularly well-suited for high-performance audio applications, including automotive audio and industrial control segments. Its advanced features and high core performance make it an ideal choice for surround-sound decoder algorithms and other demanding audio processing tasks.
Q & A
- What is the core clock speed of the ADSP-21489KSWZ-4A?
The core clock speed is 450 MHz.
- How much on-chip RAM does the ADSP-21489KSWZ-4A have?
The processor has 5 Mbits of on-chip RAM.
- What type of package does the ADSP-21489KSWZ-4A come in?
The processor comes in a 100-lead LQFP-EP package.
- What is the temperature range of the ADSP-21489KSWZ-4A?
The temperature range is 0°C to +110°C.
- Is the ADSP-21489KSWZ-4A code-compatible with other SHARC processors?
Yes, it is source code compatible with other SHARC family members and first-generation ADSP-2106x SHARC processors in SISD mode.
- What types of interfaces does the ADSP-21489KSWZ-4A support?
The processor supports I2C, SPI, UART, S/PDIF Transceiver, and TWI interfaces.
- How many PWM channels does the ADSP-21489KSWZ-4A have?
The processor has 16 PWM channels.
- What is the purpose of the Digital Applications Interface (DAI) in the ADSP-21489KSWZ-4A?
The DAI enables user-definable access to peripherals including S/PDIF Tx/Rx and an 8-channel asynchronous sample rate converter.
- What are some of the key applications for the ADSP-21489KSWZ-4A?
The processor is well-suited for high-performance audio applications, including automotive audio and industrial control segments.
- Does the ADSP-21489KSWZ-4A support external memory interfaces?
Yes, it supports a glueless interface to 16-bit wide SDR SDRAMs.
