Overview
The ADSP-21469KBCZ-4, part of the fourth generation of SHARC Processors from Analog Devices Inc., is a high-performance digital signal processor (DSP) designed to meet the demanding requirements of professional and automotive audio applications. This processor offers enhanced performance, hardware-based filter accelerators, and advanced peripherals tailored for audio processing. With a core clock speed of 450 MHz and a single-instruction, multiple-data (SIMD) computational architecture, it supports both 32-bit fixed-point and 32-/40-bit floating-point arithmetic formats, making it particularly suitable for high-performance audio processing tasks.
Key Specifications
| Specification | Value |
|---|---|
| Core Clock Speed | 450 MHz |
| On-chip RAM | 5 Mbits |
| On-chip ROM | 4 Mbits |
| External Memory Interface | 16-bit wide DDR2 |
| Accelerators | FIR, IIR, FFT |
| Serial Ports (SPORTs) | 8 (supporting I2S, left-justified sample pair, and TDM modes) |
| SPI Ports | 2 (supporting master and slave modes) |
| UART | 1 |
| Two-Wire Interface | Yes |
| Pulse Width Modulation (PWM) Channels | 16 |
| Timers | 3 full-featured timers |
| Package Type | 324-ball CSP_BGA |
| Temperature Range | Commercial and Industrial |
Key Features
- High-performance 32-bit/40-bit floating-point processor optimized for high-performance audio processing.
- Single-instruction, multiple-data (SIMD) computational architecture.
- Hardware-based filter accelerators (FIR, IIR, FFT) to enhance system performance.
- Digital Applications Interface (DAI) enabling user-definable access to peripherals, including S/PDIF Tx/Rx and 8-channel asynchronous sample rate converters.
- Enhanced DMA engine with scatter/gather DMA and delay line DMA.
- Variable Instruction Set Architecture (VISA) to reduce code size by 20% to 30% and increase memory size availability.
- Glueless interface to 16-bit wide DDR2 SDRAMs for faster external memory access.
- Multiple serial ports, SPI ports, UART, and Two-Wire Interface for versatile communication options.
Applications
- Professional audio systems: The ADSP-21469 is well-suited for high-end audio processing in professional environments, including surround-sound systems and audio mixers.
- Automotive audio: Qualified for automotive applications, it addresses the increasing requirements of in-car audio systems.
- Consumer electronics: Ideal for consumer audio devices that require high-performance audio processing, such as home theaters and soundbars.
- Industrial control systems: Can be used in industrial control systems that require advanced signal processing capabilities.
Q & A
- What is the core clock speed of the ADSP-21469KBCZ-4?
The core clock speed is 450 MHz.
- How much on-chip RAM does the ADSP-21469KBCZ-4 have?
The processor has 5 Mbits of on-chip RAM.
- What type of external memory interface does the ADSP-21469KBCZ-4 support?
The processor supports a 16-bit wide DDR2 external memory interface.
- What accelerators are included in the ADSP-21469KBCZ-4?
The processor includes FIR, IIR, and FFT accelerators.
- How many serial ports (SPORTs) does the ADSP-21469KBCZ-4 have?
The processor has 8 serial ports supporting I2S, left-justified sample pair, and TDM modes.
- What is the package type of the ADSP-21469KBCZ-4?
The package type is 324-ball CSP_BGA.
- Is the ADSP-21469KBCZ-4 qualified for automotive applications?
Yes, it is qualified for automotive applications.
- What is the Variable Instruction Set Architecture (VISA) feature in the ADSP-21469KBCZ-4?
VISA allows the code size to be decreased by 20% to 30% and increases the memory size availability.
- How many PWM channels does the ADSP-21469KBCZ-4 have?
The processor has 16 Pulse Width Modulation (PWM) channels.
- What is the Digital Applications Interface (DAI) in the ADSP-21469KBCZ-4?
The DAI enables user-definable access to peripherals, including S/PDIF Tx/Rx and 8-channel asynchronous sample rate converters.
