Overview
The ADAU1452WBCPZ150, produced by Analog Devices Inc., is a highly advanced SigmaDSP digital audio processor. This device is part of the ADAU1452 series, which includes variants differentiated by memory, DSP core frequency, and interface availability. The ADAU1452 is designed to exceed the digital signal processing capabilities of earlier models, making it an ideal choice for complex multirate audio systems. It features a 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 also power-efficient, consuming only a few hundred milliwatts of power, and can operate in temperatures exceeding 100°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Core Clock Frequency (f_CORE) | 152 MHz | - | 294.912 MHz | - | System (DSP core) clock frequency; PLL feedback divider ranges from 64 to 108 |
| I/O Sample Rate | 6 kHz | - | 192 kHz | - | - |
| I/O Sample Rate Ratio | 1:8 | - | 7.75:1 | - | - |
| Dynamic Range | - | - | 139 dB A-weighted, 20 Hz to 20 kHz | - | - |
| THD + N | - | - | -120 dB | - | - |
| Supply Voltage (AVDD) | 2.97 V | 3.3 V | 3.63 V | V | Supply for analog circuitry, including auxiliary ADC |
| Supply Voltage (DVDD) | 1.14 V | 1.2 V | - | V | Regulator maintains typical output voltage up to a maximum 800 mA load |
| Supply Voltage (IOVDD) | 1.8 V - 10% | - | 3.3 V + 10% | V | - |
| Package | - | - | 72-VFQFN Exposed Pad, CSP | - | - |
Key Features
- High-Performance DSP Core: The ADAU1452 features a 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.
- Flexible Clock Generation: The device includes an integer PLL and flexible clock generator hardware that can generate up to 15 audio sample rates simultaneously.
- Asynchronous Sample Rate Converters (ASRCs): Integrated ASRCs and a flexible hardware audio routing matrix simplify the design of complex multirate audio systems.
- Low Power Consumption: The power-efficient DSP core consumes only a few hundred milliwatts of power and can operate in temperatures exceeding 100°C.
- Highly Configurable Interfaces: The device interfaces with a wide range of ADCs, DACs, digital audio devices, amplifiers, and control circuitry through highly configurable serial ports, S/PDIF interfaces, and multipurpose input/output pins.
- Direct Interface with MEMS Microphones: Integrated decimation filters allow direct interface with PDM-output MEMS microphones).
- Independent Slave and Master I2C/SPI Control Ports: Allows the device to be programmed and configured by an external master device and to program and configure external slave devices directly).
Applications
- Automotive Audio Systems: The ADAU1452 is automotive qualified, making it suitable for advanced automotive audio systems).
- Professional Audio Equipment: Ideal for professional audio applications requiring high-performance digital signal processing and flexible audio routing).
- Consumer Electronics: Suitable for consumer electronics such as home audio systems, soundbars, and high-end 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 operating frequency of the ADAU1452 DSP core?
The ADAU1452 DSP core can operate at frequencies up to 294.912 MHz).
- What types of interfaces does the ADAU1452 support?
The ADAU1452 supports highly configurable serial ports, S/PDIF interfaces, and multipurpose input/output pins. It also interfaces directly with PDM-output MEMS microphones).
- How many instructions can the ADAU1452 execute per sample at a standard sample rate of 48 kHz?
The ADAU1452 can execute up to 6144 instructions per sample at a standard sample rate of 48 kHz).
- What is the dynamic range of the ADAU1452?
The dynamic range of the ADAU1452 is 139 dB A-weighted, from 20 Hz to 20 kHz).
- What is the power consumption of the ADAU1452?
The ADAU1452 consumes only a few hundred milliwatts of power and can operate in temperatures exceeding 100°C).
- What package type is the ADAU1452WBCPZ150 available in?
The ADAU1452WBCPZ150 is available in a 72-VFQFN Exposed Pad, CSP package).
- Can the ADAU1452 operate as a standalone system?
Yes, the ADAU1452 can operate as a standalone system due to its self-boot functionality and ability to program and configure external slave devices directly).
- What software is used to program the ADAU1452?
The ADAU1452 is programmed using Analog Devices' SigmaStudio software).
- What is the temperature range for the ADAU1452?
The ADAU1452 can operate in temperatures ranging from -40°C to +105°C).
- Does the ADAU1452 support multiple sample rates simultaneously?
Yes, the ADAU1452 can generate up to 15 audio sample rates simultaneously using its integer PLL and flexible clock generator hardware).
