Overview
The ADAU1451WBCPZ, produced by Analog Devices Inc., is a highly advanced SigmaDSP digital audio processor. This device is part of the ADAU1452/ADAU1451/ADAU1450 family, which are automotive-qualified and significantly enhance the digital signal processing capabilities of earlier SigmaDSP devices. The ADAU1451 is designed to handle complex multirate audio systems with its powerful 32-bit DSP core, flexible clock generators, and integrated asynchronous sample rate converters (ASRCs). It is ideal for applications requiring high-performance audio processing with low power consumption and a small footprint.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| DSP Core Frequency | Up to 294.912 MHz | MHz | |
| Instructions per Sample | Up to 6144 | ||
| Parameter/Data RAM | Up to 40 kWords | ||
| Digital Audio Delay Pool | Up to 800 ms | ms | |
| Supply Voltage (AVDD Pin) | 2.97 - 3.63 V | V | Supply for analog circuitry |
| Supply Voltage (DVDD Pin) | 1.14 - 1.26 V | V | Supply for digital circuitry |
| Supply Voltage (PVDD Pin) | 2.97 - 3.63 V | V | Supply for PLL circuitry |
| Supply Voltage (IOVDD Pin) | 1.71 - 3.63 V | V | Supply for input/output circuitry |
| Analog Current (AVDD Pin) | 1.44 - 2 mA | mA | |
| PLL Current (PVDD Pin) | 6 - 15 mA | mA |
Key Features
- Fully programmable 32-bit SigmaDSP core with up to 294.912 MHz frequency and up to 6144 SIMD instructions per sample at 48 kHz.
- Support for a wide range of sample rates and flexible clock generators.
- Integrated asynchronous sample rate converters (ASRCs) with up to 8 stereo channels and a dynamic range of 139 dB.
- S/PDIF input and output interfaces (not available on ADAU1450).
- Four PDM microphone input channels with integrated decimation filters.
- 48-channel, 32-bit digital input/output up to a sample rate of 192 kHz.
- Flexible configuration for TDM, I2S, left and right justified formats, and PCM.
- I2C and SPI control interfaces (both slave and master).
- Standalone operation with self-boot functionality from serial EEPROM.
- On-chip regulator for generating 1.2 V from 3.3 V supply.
- 14 multipurpose pins for digital controls and outputs.
- Integrated die temperature sensor.
Applications
The ADAU1451WBCPZ is suitable for a variety of applications, including:
- Automotive audio systems: Given its automotive qualification, it is ideal for advanced in-car audio processing.
- Professional audio equipment: It can be used in high-end audio mixers, processors, and other professional audio gear.
- Consumer electronics: Suitable for home audio systems, soundbars, and other consumer audio devices.
- Industrial audio systems: Can be used in industrial environments where robust and reliable audio processing is required.
Q & A
- What is the maximum frequency of the DSP core in the ADAU1451?
The DSP core can run at frequencies of up to 294.912 MHz.
- How many instructions can the ADAU1451 execute per sample at 48 kHz?
The ADAU1451 can execute up to 6144 instructions per sample at a 48 kHz sample rate.
- Does the ADAU1451 support S/PDIF interfaces?
- How many PDM microphone input channels does the ADAU1451 have?
The ADAU1451 has four PDM microphone input channels.
- What is the dynamic range of the ASRCs in the ADAU1451?
The ASRCs have a dynamic range of 139 dB.
- Can the ADAU1451 operate in standalone mode?
- What are the supply voltage ranges for the ADAU1451?
The supply voltage ranges are 2.97 - 3.63 V for AVDD, 1.14 - 1.26 V for DVDD, 2.97 - 3.63 V for PVDD, and 1.71 - 3.63 V for IOVDD).
- How many multipurpose pins does the ADAU1451 have?
The ADAU1451 has 14 multipurpose pins for digital controls and outputs).
- Is the ADAU1451 automotive qualified?
- What software is used to program the ADAU1451?
The ADAU1451 is programmed using Analog Devices' SigmaStudio software).
