Analog Devices AD1881 overview
AD AD1881 Integrated Circuit Analog Devices AD1881 AC’97 SoundMAX® Codec | Integrated Circuits AC’97 2.1 FEATURES Variable Sample Rate True Line-Level Output Supports Secondary Codec Modes AC’97 FEATURES Designed for AC’97 Analog I/O Component 48-Lead LQFP Package Multibit Converter Archite...
What is Analog Devices AD1881?
Analog Devices AD1881 AC’97 SoundMAX Codec. AD AD1881 Integrated Circuit Analog Devices AD1881 AC’97 SoundMAX® Codec | Integrated Circuits AC’97 2.1 FEATURES Variable Sample Rate True Line-Level Output Supports Secondary Codec Modes AC’97 FEATURES Designed for AC’97 Analog I/O Component 48-Lead LQFP Package Multibit Converter Archite...
Product details
Manufactured byAnalog Devices
Product groupModules
DescriptionAD AD1881 Integrated Circuit
Description 1786381206Analog Devices AD1881 AC’97 SoundMAX® Codec | Integrated Circuits
Key FeaturesAC’97 2.1 FEATURES Variable Sample Rate True Line-Level Output Supports Secondary Codec Modes AC’97 FEATURES Designed for AC’97 Analog I/O Component 48-Lead LQFP Package Multibit Converter Architecture for Improved S/N Ratio Greater than 90 dB 16-Bit Stereo Full-Duplex Codec Four Analog Line-Level Stereo Inputs for Connection from LINE, CD, VIDEO, and AUX Two Analog Line-Level Mono Inputs for Speakerphone and PC BEEP Mono MIC Input Switchable from Two External Sources High Quality CD Input with Ground Sense Stereo Line-Level Output Mono Output for Speakerphone or Internal Speaker Power Management Support
Enhanced FeaturesMobile Low Power Mixer Mode Digital Audio Mixer Mode Full-Duplex Variable 8 kHz to 48 kHz Sampling Rate with 1 Hz Resolution PHAT™ Stereo 3D Stereo Enhancement Split Power Supplies (3.3 V Digital/5 V Analog) Extended 6-Bit Master Volume Control Audio Amp Power-Down Signal
OverviewThe AD1881A meets the Audio Codec ’97 2.0 and 2.1 Extensions. In addition, the AD1881A SoundMAX Codec is designed to meet all requirements of the Audio Codec ’97, Component Specification, Revision 1.03, © 1996, Intel Corporation, found at www.Intel.com. The AD1881A also includes some other Codec enhanced features such as the built-in PHAT Stereo 3D enhancement.The AD1881A is an analog front end for high-performance PC audio applications. The AC’97 architecture defines a 2-chip audio solution comprising a digital audio controller, plus a high-quality analog component that includes Digital-to-Analog Converters (DACs), Analog-to-Digital Converters (ADCs), mixer, and I/O.The main architectural features of the AD1881A are the high-quality analog mixer section, two channels of Σ∆ ADC conversion, two channels of Σ∆ DAC conversion with Data Direct Scrambling (D2 S) rate generators. The AD1881A’s left channel ADC and DAC are compatible for modem applications supporting irrational sample rates and modem filtering requirements.
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