Overview
The ADAU1467WBCPZ300, produced by Analog Devices Inc., is a highly advanced SigmaDSP digital audio processor. This device is part of the ADAU1463/ADAU1467 series, which significantly exceeds the digital signal processing capabilities of earlier SigmaDSP devices. It is automotive qualified and features an enhanced 32-bit DSP core that can run at frequencies of up to 294.912 MHz, executing up to 6144 single instruction, multiple data (SIMD) instructions per sample at a standard sample rate of 48 kHz. The processor is optimized for efficient audio processing, supporting stream processing, multirate processing, and block processing paradigms.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Analog Voltage (AVDD) | 2.97 | 3.3 | 3.63 | V | Supply for analog circuitry, including auxiliary ADCs |
| Digital Voltage (DVDD) | 1.14 | 1.2 | 1.26 | V | Supply for digital circuitry, including the DSP core, ASRCs, and signal routing |
| PLL Voltage (PVDD) | 2.97 | 3.3 | 3.63 | V | Supply for PLL circuitry |
| I/O Supply Voltage (IOVDD) | 1.71 | 3.3 | 3.63 | V | Supply for input/output circuitry, including pads and level shifters |
| DSP Core Frequency | - | - | 294.912 | MHz | - |
| Data Memory | - | - | 80 kWords | - | - |
| Program Memory | - | - | 24 kWords | - | - |
| ASRC Dynamic Range | - | - | 139 dB | A weighted, 20 Hz to 20 kHz | - |
| I/O Sample Rate | 6 | - | 192 kHz | - | - |
Key Features
- Enhanced DSP Core: The 32-bit DSP core can run at frequencies of up to 294.912 MHz and execute up to 6144 SIMD instructions per sample at a standard sample rate of 48 kHz.
- Flexible Audio Processing: Supports stream processing, multirate processing, and block processing paradigms, enabling complex audio algorithms with high efficiency.
- Asynchronous Sample Rate Converters (ASRCs): Provide dynamic range of 139 dB and support sample rates from 6 kHz to 192 kHz.
- Serial Audio Ports: Four input and four output serial ports with assignable data pins, allowing for flexible configuration and additional channels of audio data without high-speed serial ports.
- Clock Generators and PLL: Flexible phase-locked loop (PLL) with multiple fractional integer outputs, supporting all industry standard audio sample rates and generating up to 15 sample rates simultaneously.
- Memory and Boot Functionality: Features 80 kWords of data memory and 24 kWords of program memory, with self-boot functionality and master control port for standalone systems.
- Interface Capabilities: Interfaces with a wide range of analog-to-digital converters (ADCs), digital-to-analog converters (DACs), digital audio devices, amplifiers, and control circuitry through highly configurable serial ports, I2C, SPI, and S/PDIF interfaces.
Applications
- Automotive Audio Systems: The ADAU1467WBCPZ300 is automotive qualified, making it suitable for advanced audio processing in vehicle infotainment systems.
- Professional Audio Equipment: Ideal for use in professional audio gear such as mixers, effects processors, and audio interfaces due to its high-performance DSP capabilities and flexible audio routing.
- Consumer Electronics: Used in high-end consumer audio products like home theaters, soundbars, and smart speakers where advanced audio processing is required.
- Industrial Audio Systems: Suitable for industrial applications requiring robust and efficient audio processing, such as public address systems and industrial control systems.
Q & A
- What is the maximum DSP core frequency of the ADAU1467WBCPZ300?
The maximum DSP core frequency is 294.912 MHz.
- How much data memory and program memory does the ADAU1467WBCPZ300 have?
The device has 80 kWords of data memory and 24 kWords of program memory.
- What is the dynamic range of the ASRCs in the ADAU1467WBCPZ300?
The ASRCs have a dynamic range of 139 dB (A weighted, 20 Hz to 20 kHz).
- What types of interfaces does the ADAU1467WBCPZ300 support?
The device supports I2C, SPI, S/PDIF interfaces, and highly configurable serial ports.
- Can the ADAU1467WBCPZ300 operate as a standalone system?
Yes, it features self-boot functionality and a master control port, enabling complex standalone systems.
- What is the package type of the ADAU1467WBCPZ300?
The device is packaged in an 88-Lead LFCSP (12mm x 12mm x 0.85mm w/ EP).
- How many serial audio ports does the ADAU1467WBCPZ300 have?
The device has four input and four output serial ports.
- What is the supply voltage range for the analog circuitry (AVDD) of the ADAU1467WBCPZ300?
The supply voltage range for AVDD is 2.97 V to 3.63 V.
- Can the ADAU1467WBCPZ300 decode PDM output from MEMS microphones?
Yes, it can decode the PDM output of up to four MEMS microphones.
- What is the typical power consumption of the ADAU1467WBCPZ300 in operation state?
The typical power consumption in operation state varies depending on the program, but for a test program including 16-channel I/O and 10-band EQ per channel, it is approximately 220 mA at fCORE = 294.912 MHz.
