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- Brand
- Analog Devices
- Model
- AD1890
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- Industrial
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- Last added
- 2012-06-04
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Analog Devices AD1890/AD1891 SamplePort Stereo Asynchronous Sample Rate Converter Datasheet
The AD1890 and AD1891 SamplePort™ devices are fully digital, stereo asynchronous sample‑rate converters (ASRCs) that automatically sense input and output sample‑clock relationships, eliminating the need for manual programming. They support 8 kHz to 56 kHz sample‑clock frequencies and a 1:2 to 2:1 clock‑ratio, providing high‑quality audio conversion for professional and lower‑cost applications.
Typical applications include digital mixing consoles, audio workstations, digital recorders, broadcast equipment, and multimedia systems. Key features are automatic sample‑frequency detection, low jitter tolerance, selectable fast or slow settling modes, and flexible four‑wire serial interfaces.
Analog Devices AD1890 specifications
| Dynamic Range (AD1890) | 120 dB |
|---|---|
| Dynamic Range (AD1891) | 96 dB |
| Supply Voltage (VDD) | 2.7 V – 5.5 V |
| Supply Current (VDD = 5.0 V) | 35 mA – 40 mA |
| Sample Clock Frequency Range | 8 kHz – 56 kHz |
| Clock Ratio | 1:2 – 2:1 |
| Input Word Width (AD1890) | 4 – 20 bits |
Source: Analog Devices AD1890/AD1891 SamplePort Stereo Asynchronous Sample Rate Converter Datasheet
All Analog Devices AD1890 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the supply voltage range for the AD1890/AD1891?
The devices operate from a VDD of 2.7 V to 5.5 V.
From: Analog Devices AD1890/AD1891 SamplePort Stereo Asynchronous Sample Rate Converter Datasheet
How much sample‑clock jitter can the AD1890/AD1891 tolerate?
The input and output sample‑clock jitter tolerance is up to 10 ns for less than 1 dB degradation in THD+N.
From: Analog Devices AD1890/AD1891 SamplePort Stereo Asynchronous Sample Rate Converter Datasheet
What is the input sample clock frequency range of the AD1890/AD1891?
The devices accept input sample clocks from 8 kHz up to 56 kHz.
From: Analog Devices AD1890/AD1891 SamplePort Asynchronous Sample Rate Converter Datasheet
How many pins are in the DIP package?
The DIP version uses a 28‑lead plastic package.
From: Analog Devices AD1890/AD1891 SamplePort Asynchronous Sample Rate Converter Datasheet