Overview
The ADAU1401AWBSTZ from Analog Devices Inc. is a comprehensive, single-chip audio system that integrates a 28-/56-bit audio DSP, two Σ-Δ ADCs, and four Σ-Δ DACs. This device is designed to provide high-quality audio processing with advanced features such as equalization, crossover, bass enhancement, multiband dynamics processing, delay compensation, speaker compensation, and stereo image widening. The ADAU1401A is capable of standalone operation and can self-boot from a serial EEPROM, making it highly versatile for various audio applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| ADC Resolution | 24 Bits | Full-scale input | |||
| ADC Full-Scale Input | 2 V rms | V | With 20 kΩ series resistor | ||
| ADC Signal-to-Noise Ratio (A-Weighted) | 92 | 100 | dB | ||
| ADC Total Harmonic Distortion + Noise | −83 dB | dB | −3 dB with respect to full-scale analog input | ||
| DAC Resolution | 24 Bits | Full-scale output | |||
| DAC Signal-to-Noise Ratio (A-Weighted) | 104 dB | dB | |||
| DAC Total Harmonic Distortion + Noise | −90 dB | dB | −3 dB with respect to full-scale analog output | ||
| Sampling Rates | Up to 192 kHz | kHz | |||
| Power Supply Voltage | 2.97 | 3.3 | 3.63 | V | AVDD range |
| Digital Supply Voltage | 1.62 | 1.8 | 1.98 | V | DVDD range |
| Operating Temperature | −40 | 130 | °C | Case temperature |
Key Features
- 28-/56-bit, 50 MIPS digital audio processor with full double-precision processing capability
- Two Σ-Δ ADCs with SNR of 100 dB and THD + N of −83 dB
- Four Σ-Δ DACs with SNR of 104 dB and THD + N of −90 dB
- Self-boot capability from serial EEPROM
- Auxiliary ADC with 4-input mux for analog control
- GPIOs for digital controls and outputs
- Fully programmable with SigmaStudio graphical tool
- Clock oscillator and PLL for generating master clock from various frequencies
- Flexible serial data input/output ports with I2S-compatible, left-justified, right-justified, and TDM modes
- On-chip voltage regulator for compatibility with 3.3 V systems
- 48-lead, plastic LQFP package
Applications
- Multimedia speaker systems
- MP3 player speaker docks
- Automotive head units
- Minicomponent stereos
- Digital televisions
- Studio monitors
- Speaker crossovers
- Musical instrument effects processors
- In-seat sound systems (aircraft/motor coaches)
Q & A
- What is the ADAU1401AWBSTZ?
The ADAU1401AWBSTZ is a 28-/56-bit audio DSP from Analog Devices, featuring two Σ-Δ ADCs and four Σ-Δ DACs, designed for high-quality audio processing in various applications.
- What are the key specifications of the ADAU1401AWBSTZ ADCs?
The ADCs have a resolution of 24 bits, a signal-to-noise ratio (SNR) of 100 dB, and a total harmonic distortion + noise (THD + N) of −83 dB.
- What are the key specifications of the ADAU1401AWBSTZ DACs?
The DACs have a resolution of 24 bits, an SNR of 104 dB, and a THD + N of −90 dB.
- What sampling rates does the ADAU1401AWBSTZ support?
The device supports sampling rates up to 192 kHz.
- How does the ADAU1401AWBSTZ communicate with other devices?
The ADAU1401AWBSTZ communicates through an I2C bus or a 4-wire SPI port.
- What is the power supply voltage range for the ADAU1401AWBSTZ?
The device operates with an AVDD range of 2.97 V to 3.63 V and a DVDD range of 1.62 V to 1.98 V.
- What are some common applications of the ADAU1401AWBSTZ?
Common applications include multimedia speaker systems, MP3 player speaker docks, automotive head units, minicomponent stereos, digital televisions, studio monitors, and musical instrument effects processors.
- Can the ADAU1401AWBSTZ be used in automotive applications?
- How is the ADAU1401AWBSTZ programmed?
The device is fully programmable using the SigmaStudio graphical tool.
- What package type does the ADAU1401AWBSTZ come in?
The device comes in a 48-lead, plastic LQFP package.
