Overview
The AD1980JST, produced by Analog Devices Inc., is a high-performance AC '97 SoundMAX® codec designed for use in various audio applications. This integrated circuit provides advanced audio processing capabilities, including analog-to-digital and digital-to-analog conversion, and is optimized for use in personal computers, laptops, and other multimedia devices. The AD1980JST features a robust set of functionalities that enhance audio quality and system integration.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution (ADC) | 16 | Bits | ||
| Total Harmonic Distortion (THD) | -80 | dB | ||
| Input Clock Frequency (XTAL Mode) | 24.576 | 24.576 | MHz | |
| Input Clock Frequency (Reference Clock Mode) | 14.31818 | 14.31818 | MHz | |
| Input Clock Frequency (USB Clock Mode) | 48.000 | 48.000 | MHz | |
| Sample Rate | 7 | 48 | 96 | kHz |
| Analog Supply (AVDD) | 4.5 | 5.0 | 5.5 | V |
| Digital Supply (DVDD) | 3.0 | 3.3 | 3.6 | V |
| Operating Temperature | 0 | 70 | °C | |
| Package Type | LQFP-48 (7x7) |
Key Features
- Integrated Parametric Equalizer
- Stereo MIC Preamp Support
- Integrated PLL for System Clocking
- Variable Sample Rate (7 kHz to 96 kHz)
- Jack Sense (Auto Topology Switching)
- Software Controlled VREF_OUT for MIC Bias
- Software Enabled Outputs for Jack Sharing
- Auto Down-Mix and Channel Spreading Modes
Applications
The AD1980JST is widely used in various audio-centric applications, including personal computers, laptops, multimedia systems, and other devices requiring high-quality audio processing. It is particularly suited for systems that need advanced audio features such as multi-channel audio support, integrated microphone preamplifiers, and flexible clocking options.
Q & A
- What is the AD1980JST?
The AD1980JST is an AC '97 SoundMAX® codec produced by Analog Devices Inc., designed for high-performance audio applications. - What are the key features of the AD1980JST?
Key features include an integrated parametric equalizer, stereo MIC preamp support, integrated PLL for system clocking, variable sample rate, jack sense, and software-controlled outputs. - What are the typical operating conditions for the AD1980JST?
The typical operating conditions include an analog supply (AVDD) of 5.0 V, a digital supply (DVDD) of 3.3 V, and an operating temperature range of 0°C to 70°C. - What is the resolution of the ADC in the AD1980JST?
The resolution of the ADC is 16 bits. - What are the input clock frequency options for the AD1980JST?
The input clock frequency options include 24.576 MHz (XTAL Mode), 14.31818 MHz (Reference Clock Mode), and 48.000 MHz (USB Clock Mode). - What is the package type of the AD1980JST?
The package type is LQFP-48 (7x7). - What are some common applications of the AD1980JST?
Common applications include personal computers, laptops, and other multimedia systems requiring advanced audio processing. - Does the AD1980JST have ESD protection?
Yes, the AD1980JST features proprietary ESD protection circuitry, but proper ESD precautions are still recommended to avoid damage. - What is the sample rate range of the AD1980JST?
The sample rate range is from 7 kHz to 96 kHz. - Does the AD1980JST support jack sensing and auto topology switching?
Yes, it supports jack sense (auto topology switching).
