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IC combines headphone and speaker amplifiers into one

18 Apr 2012

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Fairchild Semiconductor has developed the FAB2210 audio subsystem with integrated Class-G headphone and Class-D speaker amplifiers for the design of mobile devices such as smartphones and portable media players. The FAB2210 combines a Class-G stereo cap-free headphone amplifier with a mono filterless Class-D speaker amplifier into one package for improved audio quality and low power dissipation. The device features noise gate technology, which automatically mutes the speaker or headphone amplifiers to reduce noise when input signals are low. It also boasts automatic gain control (AGC) to improve sound quality and increase speaker protection.

Key features of the FAB2210:
?Cap-free outputs for reduced bill of material (BOM) and enhanced frequency response

?Low noise 105dB signal to noise ratio (SNR)

?Automatic gain control (AGC) for maximum output volume while minimizing clipping

?Current limit and thermal protection

?Selectable single-ended or differential audio inputs for high common mode rejection

?Configurable using I2C control

?Suitable for use in mobile handsets/smartphones, portable media players (PMP), portable GPS and gaming devices, digital voice recorders

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