Key facts
- Brand
- Analog Devices
- Model
- ADAU1401
- Category
- Audio Codec
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-03
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Analog Devices ADAU1401A Audio Processor Datasheet
The ADAU1401A is a single‑chip audio system that combines a 28‑/56‑bit SigmaDSP, two sigma‑delta ADCs, four sigma‑delta DACs, and a microcontroller‑like control interface. It supports up to 192 kHz sampling rates and offers full double‑precision processing for high‑quality audio applications such as multimedia speaker systems, automotive head units, and digital televisions.
The device operates from a 3.3 V analog supply and a 1.8 V digital supply, includes an on‑chip voltage regulator, and is offered in a 48‑lead LQFP package. Detailed specifications cover analog performance, digital I/O timing, power consumption, temperature range, and automotive‑grade options.
Analog Devices ADAU1401 specifications
| ADC Signal‑to‑Noise Ratio | 100 dB |
|---|---|
| ADC THD+N | ‑83 dB |
| DAC Signal‑to‑Noise Ratio | 104 dB |
| DAC THD+N | ‑90 dB |
| Analog Supply Voltage (AVDD) | 3.3 V |
| Digital Supply Voltage (DVDD) | 1.8 V |
| Package | 48‑lead LQFP |
All Analog Devices ADAU1401 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the ADC signal‑to‑noise ratio of the ADAU1401A?
The ADCs provide a signal‑to‑noise ratio of 100 dB.
What supply voltages does the ADAU1401A require?
It uses a 3.3 V analog supply (AVDD) and a 1.8 V digital supply (DVDD).
What is the maximum supported sampling rate?
The ADAU1401 supports sampling rates up to 192 kHz.
How can the ADAU1401 be programmed?
It can be programmed using the SigmaStudio graphical tool and loaded from a serial EEPROM on power‑up.