The AD1981B is a highly integrated audio codec from Analog Devices Inc., designed to deliver a high-quality audio experience for a wide range of applications. Known for its reliability and performance, the AD1981B has become a popular choice in the industry for both professional and consumer audio solutions.

Key Features

• High-Quality Audio: The AD1981B provides superior sound quality with a 20-bit digital-to-analog (DAC) and 18-bit analog-to-digital (ADC) resolution, ensuring crisp and clear audio reproduction.
• AC'97 2.3 Compatible: This codec supports the AC'97 2.3 specification, ensuring compatibility with a broad range of audio systems and standards.
• Integrated Stereo Headphone Amplifiers: Equipped with built-in stereo headphone amplifiers, the AD1981B can drive a wide variety of headphones, making it versatile for personal audio use.
• Power Management: Advanced power management features help to reduce power consumption during idle or low-activity periods, making the AD1981B an energy-efficient choice.
• Multiple Codec Extensions: It supports multiple codec extensions, allowing for flexibility in designing audio systems that require additional features such as surround sound or multiple audio streams.

Applications

The AD1981B is suitable for a variety of applications, including:

• Desktop and laptop computers
• Multimedia workstations
• Home theater systems
• Portable audio devices
• Professional audio mixing and editing stations

Technical Specifications

With a wide operating temperature range and available in a 48-lead LQFP package, the AD1981B is designed for integration into a diverse array of audio systems. The codec operates on a 5V analog and a 3.3V digital power supply, and features a programmable jack sensing that supports detection of up to 8 jacks for complex audio tasks.

For detailed technical specifications, application notes, and support documentation, please visit the Analog Devices Inc. website.