Overview
The ADAU1452WBCPZ is a highly advanced SigmaDSP digital audio processor produced by Analog Devices Inc. This device is part of the ADAU1452 series, which includes variants such as the ADAU1452, ADAU1451, and ADAU1450. The ADAU1452WBCPZ is specifically designed for automotive applications and exceeds the digital signal processing capabilities of earlier SigmaDSP devices. It features a 1.2 V, 32-bit DSP core that can operate at frequencies up to 294.912 MHz and execute up to 6144 instructions per sample at a standard sample rate of 48 kHz. The device is known for its power efficiency, low power consumption, and small footprint, making it an ideal replacement for larger, general-purpose DSPs.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage (AVDD) | 2.97 | 3.3 | 3.63 | V | Supply for analog circuitry, including auxiliary ADC |
| Supply Voltage (DVDD) | 1.14 | 1.2 | 1.26 | V | Regulator maintains typical output voltage up to a maximum 800 mA load |
| Supply Voltage (IOVDD) | 1.8 - 10% | 1.8 - 3.3 + 10% | 3.3 + 10% | V | |
| Core Clock Frequency (f_CORE) | 152 | - | 294.912 | MHz | System (DSP core) clock frequency |
| I/O Sample Rate | 6 | - | 192 | kHz | |
| Dynamic Range | - | - | 139 | dB | A-weighted, 20 Hz to 20 kHz |
| THD + N | -120 | - | - | dB |
Key Features
- High-Performance DSP Core: The 1.2 V, 32-bit SigmaDSP core can run at frequencies up to 294.912 MHz and execute up to 6144 instructions per sample at a standard sample rate of 48 kHz.
- Flexible Clock Generation: The device includes an integer PLL and flexible clock generator hardware that can generate up to 15 audio sample rates simultaneously and features asynchronous sample rate converters (ASRCs).
- Audio Routing Matrix: A flexible hardware audio routing matrix simplifies the design of complex multirate audio systems.
- Interface Capabilities: Highly configurable serial ports, S/PDIF interfaces (on ADAU1452 and ADAU1451), and multipurpose input/output pins allow for interfacing with a wide range of analog-to-digital converters (ADCs), digital-to-analog converters (DACs), digital audio devices, amplifiers, and control circuitry.
- Power Efficiency: The DSP core consumes only a few hundred milliwatts of power and can run at a maximum program load while consuming less than a watt, even in worst-case temperatures exceeding 100°C.
- Programmability: The device can be programmed and configured using the SigmaStudio software and supports self-boot functionality, enabling the design of standalone systems.
- Automotive Qualification: The ADAU1452WBCPZ is qualified for use in automotive applications.
Applications
- Automotive Audio Systems: Ideal for advanced automotive audio systems due to its automotive qualification and robust feature set.
- Professional Audio Equipment: Suitable for professional audio equipment requiring high-performance digital signal processing.
- Consumer Electronics: Can be used in various consumer electronics such as home theaters, soundbars, and high-end audio devices.
- Industrial Audio Processing: Applicable in industrial settings where complex audio processing and low power consumption are critical.
Q & A
- What is the maximum frequency of the DSP core in the ADAU1452WBCPZ?
The DSP core can operate at frequencies up to 294.912 MHz.
- What is the typical power consumption of the ADAU1452WBCPZ?
The device consumes only a few hundred milliwatts of power and can run at a maximum program load while consuming less than a watt.
- Does the ADAU1452WBCPZ support multiple sample rates?
Yes, the device can generate up to 15 audio sample rates simultaneously using its integer PLL and flexible clock generator hardware.
- How is the ADAU1452WBCPZ programmed?
The device is programmed using the SigmaStudio software, which interfaces with the device via a universal serial bus interface (USBi).
- What types of interfaces does the ADAU1452WBCPZ support?
The device supports highly configurable serial ports, S/PDIF interfaces, and multipurpose input/output pins, allowing it to interface with a wide range of audio devices and circuitry.
- Is the ADAU1452WBCPZ qualified for automotive applications?
Yes, the ADAU1452WBCPZ is qualified for use in automotive applications.
- What is the dynamic range of the ADAU1452WBCPZ?
The device has a dynamic range of 139 dB A-weighted, from 20 Hz to 20 kHz.
- Can the ADAU1452WBCPZ interface with MEMS microphones?
Yes, the device can directly interface with pulse density modulation (PDM) output microelectromechanical (MEMS) microphones due to integrated decimation filters).
- What is the operating temperature range of the ADAU1452WBCPZ?
The device operates within a temperature range of -40°C to +105°C).
- Does the ADAU1452WBCPZ support self-boot functionality?
Yes, the device supports self-boot functionality, enabling the design of standalone systems that do not require any external input to operate).
