MAX9888 具有FLEXSOUND技术的立体声音频编解码

MAX9888具有FLEXSOUND技术的立体声音频编解码器

概述

TheMAX9888is a full-featured audio CODEC whose high performance and low power consumption make it ideal for portable applications.

Class D speaker amplifiersprovide efficient amplification for two speakers. Low radiated emissions enable completely filterless operation. Integrated bypass switches optionally connect an external amplifier to the transducer when the Class D amplifiers are disabled.

DirectDrive® headphone amplifiers provide a true ground-referenced output, eliminating the need for largeDC-blocking capacitors. 1.8V headphone operation ensures low power consumption. The device also includes a differential receiver amplifier.

Three differentialanalogmicrophone inputs are available as well as support for two PDM digital microphones. Integrated switches allow microphone signals to be routed out to external devices. Two flexible single-ended or differential line inputs may be connected to an FM radio or other sources.

Integrated FLEXSOUND™ technology improves loudspeaker performance by optimizing the signal level and frequency response while limiting themaximum distortion and power at the output to prevent speaker damage. Automatic gain control (AGC) and a noise gate optimize the signal level of microphone input signals to make best use of theADCdynamic range.

The device is fully specified over the -40°C to +85°C extended temperature range.

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