AD1885

Obsolete

AC'97 SoundMAX® Codec

Data Sheet (Rev. 0) Product Selection Table

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Overview

Full Duplex Variable Sample Rates from 7040 Hz to 48 kHz with 1 Hz Resolution
Up to Three Codecs Can Be Chained on a Single 5-Wire Interface
Jack Sense Pins Provide Automatic Output Switching
Extended 6-Bit Master Volume Control
Software-Enabled VREFOUT Output for Microphones and External Power Amp

Extended 6-Bit Headphone Volume Control
Digital Audio Mixer Mode
Phat™ Stereo 3D Stereo Enhancement
Split Power Supplies (3.3 V Digital/5 V Analog)
Mobile Low-Power Mixer Mode

Analog Devices' AD1885 AC'97 SoundMAX® Codec provides stereo analog I/O on PC motherboard and peripheral devices, as part of the signal chain for delivery of high quality audio to PC-connected speakers, headphones, and microphone devices. AD1885 includes high-fidelity analog/digital, digital/analog, and sample rate converters, as well as power amplifier and programmable gain blocks.

AD1885 and SoundMAX® v2.0
The AD1885 stereo CODEC is an integral part of SoundMAX® v2.0 motherboard sound system. SoundMAX v2.0 consists of the AD1885 analog CODEC and companion Windows software drivers that take advantage of today's Intel® Pentium III and Celeron processors to implement audio synthesis and 3D effects processing. SoundMAX® v2.0, along with technology from partners Sensaura and Staccato Systems, delivers more realistic audio for Internet, voice recognition, and 3D gaming application to the complete spectrum of PCs.

SoundMAX® is a trademark of Analog Devices, Inc.
Update: 01/2000

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