Key facts
- Brand
- Analog Devices
- Model
- AD1819
- Category
- Other Electronics
- Documents
- 4
- Languages
- EN
- Last added
- 2012-08-02
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Analog Devices AD1819B AC'97 SoundPort Codec Datasheet
The AD1819B is a fully compliant AC'97 Analog I/O component designed for high-performance PC audio, modem, and DSP applications. It features a 48-terminal LOFP package and supports multiple codec configurations, DSP serial mode, and variable sampling rates from 7 kHz to 48 kHz with 1 Hz resolution.
The device includes two channels of EA ADC conversion and two channels of SA DAC conversion, along with Data Direct Scrambling (D'S) rate generators. It supports built-in Phat Stereo 3D enhancement and provides analog inputs for LINE, CD, VIDEO, AUX, microphone, and speakerphone functions.
Analog Devices AD1819 specifications
| Resolution | 16 Bits |
|---|---|
| Sampling Rate Range | 7 kHz to 48 kHz |
| Input Impedance | 10 kΩ |
| Power Supply Range | 4.5 V to 5.5 V |
| Power Supply Current | 120 mA |
| Output Impedance | 800 Ω |
Source: Analog Devices AD1819B AC'97 SoundPort Codec Datasheet
All Analog Devices AD1819 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the sampling rate resolution of the AD1819B?
The codec supports variable sampling rates from 7 kHz to 48 kHz with a resolution of 1 Hz.
From: Analog Devices AD1819B AC'97 SoundPort Codec Datasheet
Does the AD1819B support modem applications?
Yes, it contains a V.34-capable analog front end for supporting host-based and data pump modems.
From: Analog Devices AD1819B AC'97 SoundPort Codec Datasheet
What type of crystal is recommended for AC97 codecs?
ADI recommends QUARTZ crystals only because they meet the required frequency tolerance and stability.
From: ANALOG DEVICES Engineer To Engineer Note EE-59 Codec Soundbytes Manual
Can ceramic crystals be used for AC97 codecs?
Ceramic crystals are not recommended as they have frequency tolerances greater than +5000 PPM, which may result in audio performance less than AC97.
From: ANALOG DEVICES Engineer To Engineer Note EE-59 Codec Soundbytes Manual
What sample rate range does the AD1819B support?
The AD1819B supports programmable sample rates from 7 kHz up to 48 kHz with a 1 Hz resolution.
From: Analog Devices AD1819B AC’97 SoundPort Codec Datasheet
What are the power supply voltage requirements for the AD1819B?
Both the analog and digital supplies must be between 4.5 V and 5.5 V.
From: Analog Devices AD1819B AC’97 SoundPort Codec Datasheet