Overview
The ADAU1452KCPZ, produced by Analog Devices Inc., is a highly advanced SigmaDSP digital audio processor. This device is part of the ADAU1452, ADAU1451, and ADAU1450 family, which are automotive-qualified and significantly enhance the digital signal processing capabilities compared to earlier SigmaDSP generations. The ADAU1452KCPZ features a restructured hardware architecture optimized for efficient audio processing, allowing for both sample-by-sample and block-by-block processing paradigms. It is powered by a 1.2 V, 32-bit DSP core that 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. This processor is ideal for complex multirate audio systems due to its flexible clock generators, asynchronous sample rate converters (ASRCs), and a comprehensive audio routing matrix.
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 | Supply for digital circuitry, including the DSP core, ASRCs, and signal routing |
| Supply Voltage (IOVDD) | 1.8 - 5% | 1.8 - 3.3 + 10% | 3.3 + 10% | V | I/O voltage supply |
| Core Clock Frequency | - | - | 294.912 MHz | - | Maximum core clock frequency |
| Instructions per Sample | - | - | 6144 | - | At a standard sample rate of 48 kHz |
| I/O Sample Rate | 6 kHz | - | 192 kHz | - | Range of available sample rates |
| THD + N | -120 dB | - | - | - | A-weighted, 20 Hz to 20 kHz |
| Power Consumption (Typical Program) | - | 200 mA | - | - | Test program includes 16-channel I/O, 10-band EQ per channel, all ASRCs active |
Key Features
- Advanced DSP Core: 1.2 V, 32-bit DSP core capable of running at frequencies up to 294.912 MHz and executing up to 6144 instructions per sample at 48 kHz.
- Flexible Clock Generators: Can generate up to 15 audio sample rates simultaneously and includes integer PLL and asynchronous sample rate converters (ASRCs).
- Audio Routing Matrix: Comprehensive hardware audio routing matrix for complex multirate audio systems.
- Interface Capabilities: Highly configurable serial ports, S/PDIF interfaces (on ADAU1452 and ADAU1451), and multipurpose input/output pins. Direct interface with PDM output MEMS microphones.
- I2C/SPI Control Ports: Independent slave and master I2C/SPI control ports for programming and configuring external devices.
- Low Power Consumption: Power-efficient DSP core with low power consumption, even in high-temperature conditions.
Applications
- Automotive Audio Systems: The ADAU1452KCPZ is automotive-qualified, making it suitable for advanced automotive audio systems.
- Professional Audio Equipment: Ideal for professional audio applications requiring high-quality digital signal processing and flexible audio routing.
- Consumer Electronics: Used in various consumer electronics such as home audio systems, soundbars, and high-end audio devices.
- Industrial Audio Systems: Suitable for industrial audio applications that require robust and reliable digital signal processing.
Q & A
- What is the maximum core clock frequency of the ADAU1452KCPZ?
The maximum core clock frequency is 294.912 MHz.
- How many instructions can the ADAU1452KCPZ execute per sample at 48 kHz?
It can execute up to 6144 instructions per sample at 48 kHz.
- What is the range of available I/O sample rates for the ADAU1452KCPZ?
The I/O sample rate ranges from 6 kHz to 192 kHz.
- Does the ADAU1452KCPZ support S/PDIF interfaces?
The ADAU1452 and ADAU1451 models support S/PDIF interfaces, but the ADAU1450 does not.
- Can the ADAU1452KCPZ interface with PDM output MEMS microphones?
Yes, it can directly interface with PDM output MEMS microphones due to integrated decimation filters.
- What are the typical power consumption conditions for the ADAU1452KCPZ?
The typical power consumption is around 200 mA for a test program including 16-channel I/O, 10-band EQ per channel, and all ASRCs active.
- Does the ADAU1452KCPZ support I2C and SPI interfaces?
Yes, it supports both I2C and SPI interfaces as both slave and master.
- What is the operating temperature range for the ADAU1452KCPZ?
The operating temperature range is from -40°C to +105°C.
- Can the ADAU1452KCPZ be used in standalone systems?
Yes, it can be used in standalone systems due to its self-boot functionality and ability to act as a master to configure external devices.
- What development tool is recommended for programming the ADAU1452KCPZ?
The recommended development tool is SigmaStudio™, a graphical programming tool.
