Key facts
- Brand
- Analog Devices
- Model
- AD1881A
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-04
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Analog Devices AD1881A Audio Codec Handbook
The AD1881A is an AC’97 SoundMAX audio codec designed for high‑performance PC audio applications, providing 16‑bit stereo full‑duplex conversion and a range of analog and digital features.
This handbook contains functional descriptions, pin‑function tables, timing parameters, electrical specifications, recommended circuit connections, and layout guidelines for integrating the codec.
Analog Devices AD1881A specifications
| Input Voltage (RMS) LINE_IN, AUX, CD, VIDEO, PHONE_IN, PC_BEEP | 1 V rms (typ) |
|---|---|
| MIC with +20 dB Gain Input Voltage | 0.1 V rms (typ) |
| Sample Rate (FS) | 48 kHz |
| Digital Supply (VDD) | 3.3 V |
| Analog Supply (VCC) | 5.0 V |
| Power Dissipation (5 V/3.3 V) | 280 mW |
All Analog Devices AD1881A documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the typical input voltage for the LINE_IN analog input?
The typical RMS input voltage for LINE_IN (and other line inputs) is 1 V rms.
What is the maximum operating temperature of the AD1881A?
The device can operate up to 70 °C ambient temperature.
What is the maximum sample rate supported by the AD1881A?
The AD1881A supports up to 48 kHz sampling rate with 1 Hz resolution.
What is the input impedance of the AD1881A?
The input impedance is specified as 20 kΩ.