Overview
The ADSP-21371BSWZ-2B, produced by Analog Devices Inc., is a high-performance 32-bit floating-point SHARC (Super Harvard Architecture Single-Chip Computer) processor. This processor is optimized for high-performance audio processing and is particularly suited for professional and automotive audio market segments. It offers increased performance, audio-focused peripherals, and various memory configurations, making it ideal for applications requiring advanced audio processing capabilities.
Key Specifications
| Specification | Value |
|---|---|
| Core Frequency | 266 MHz |
| Instruction Rate | 1596 MFLOPs |
| On-chip SRAM | 1M bits (32k words of 32-bit data, 64k words of 16-bit data, etc.) |
| On-chip ROM | 4M bits of mask-programmable ROM |
| Interface | DAI (Digital Audio Interface), DPI, S/PDIF Tx/Rx |
| Serial Ports | 8 dual data line serial ports (up to 33 Mbps each) |
| PWM Outputs | 16 PWM outputs (configured as four groups of four outputs) |
| Package | 208-lead LQFP (28mm x 28mm w/ EP) |
| Max Operating Temperature | 70 °C |
Key Features
- SIMD Computational Architecture: Supports single-instruction, multiple-data (SIMD) operations for both 32-bit fixed-point and 32-/40-bit floating-point arithmetic formats.
- Dedicated Audio Components: Includes S/PDIF-compatible digital audio receiver/transmitter, 8 dual data line serial ports, and 16 PWM outputs.
- Memory and Bus Architecture: Features on-chip SRAM and ROM, with separate buses for core and I/O processor, allowing multiple data transfers in a single cycle.
- Security Features: ROM-based security with JTAG access to memory permitted with a 64-bit key and protected memory regions.
- Peripheral Interfaces: Supports synchronous SDRAMs with a 32-bit interface at 133 MHz, and includes precision clock generators and an input data port (IDP).
Applications
The ADSP-21371BSWZ-2B is primarily used in high-performance audio applications, including:
- Professional Audio Systems: Suitable for professional audio equipment requiring advanced signal processing.
- Automotive Audio Systems: Ideal for automotive audio systems that demand high-quality sound processing and low latency.
- Surround Sound Decoders: Capable of supporting surround-sound decoder algorithms due to its robust memory and processing capabilities.
Q & A
- What is the core frequency of the ADSP-21371BSWZ-2B?
The core frequency is 266 MHz. - How much on-chip SRAM does the ADSP-21371BSWZ-2B have?
The processor has 1M bits of on-chip SRAM. - What type of arithmetic does the ADSP-21371BSWZ-2B support?
The processor supports both 32-bit fixed-point and 32-/40-bit floating-point arithmetic formats. - What is the purpose of the Digital Audio Interface (DAI) in the ADSP-21371BSWZ-2B?
The DAI simplifies hardware design by integrating application-specific peripherals such as serial ports, S/PDIF transceivers, and precision clock generators. - How many serial ports does the ADSP-21371BSWZ-2B have?
The processor has 8 dual data line serial ports. - What is the maximum operating temperature of the ADSP-21371BSWZ-2B?
The maximum operating temperature is 70 °C. - What type of package does the ADSP-21371BSWZ-2B come in?
The processor is available in a 208-lead LQFP (28mm x 28mm w/ EP) package. - Does the ADSP-21371BSWZ-2B have any security features?
Yes, it includes ROM-based security features with JTAG access to memory permitted with a 64-bit key and protected memory regions. - What is the role of the Signal Routing Unit (SRU) in the ADSP-21371BSWZ-2B?
The SRU enables flexible routing amongst DAI blocks and external pins via software-programmable connections. - Can the ADSP-21371BSWZ-2B be used in automotive audio systems?
Yes, it is particularly well-suited for automotive audio systems due to its high performance and low cost.
