Key facts
- Brand
- Analog Devices
- Model
- AD1839
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-02
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Analog Devices AD1839 Silicon Anomaly Sheet
This application note describes specific silicon anomalies found in the current version of the Analog Devices AD1839 audio codec. It identifies critical bugs related to ADC phase shifts during data transfers and register programming, as well as potential issues with DAC writes.
The document provides detailed workarounds for these issues, such as synchronizing reset signals with clock edges or writing values twice to ensure correct updates. It also notes that many of these bugs have been fixed in the AD1839A revision.
Analog Devices AD1839 specifications
| DAC Resolution | 24 Bits |
|---|---|
| ADC Dynamic Range (No Filter) | 103 dB |
| DAC Dynamic Range (With A-Weighted Filter) | 108 dB |
| ADC THD+N | -95 dB |
| DAC THD+N | -92 dB |
| Supply Voltage (AVpp and DVpp) | 4.5 to 5.5 V |
| Operating Temperature Range | -40°C to +85°C |
Source: ANALOG DEVICES 2 ADC 6 DAC 96 kHz 24-Bit AD1839 handbook
All Analog Devices AD1839 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
Which AD1839 revision fixed the bugs described in this document?
The bugs have been fixed in the A version of this part (AD1839A).
What is the recommended workaround for the ADC Phase Shift Bug?
Synchronize the rising edge of PD/RST with the appropriate LRCLK or FSTDM edge to ensure safe result updates.
What is the ADC dynamic range without filtering?
The ADC dynamic range is 103 dB when measured from 20 Hz to 20 kHz with a -60 dB input and no filter.
From: ANALOG DEVICES 2 ADC 6 DAC 96 kHz 24-Bit AD1839 handbook
Is the AD1839 compatible with 3.3 V power supplies?
Yes, it features a separate supply pin for its digital interface that allows interfacing to devices using 3.3 V power supplies.
From: ANALOG DEVICES 2 ADC 6 DAC 96 kHz 24-Bit AD1839 handbook