DESCRIPTION

The A2323 is TDD suppression, super low EMI, single channel, class-D audio power amplifier.

The A2323 designed with the dedicated EEE (Enhanced Emission Elimination) technology, reducing great EMI jamming in full frequency span range, relative to 60cm audio cable, with more than 20dB level capability in FCC standard.

The A2323 internal professional timing control circuit, fully Suppressed the “Pop-Click” sound, can effectively erase the transient noise during power up, power down, power weak and power off in system operation.

The A2323 internal over current protection function and thermal protection function, can effectively protected chip operation form abnormal damage condition.

The A2323 is available in FC-9 package.

FEATURES

 Dedicated RNS(RF-TDD Noise Suppression)

technology

 The EEE technology is a super reduction capability in full frequency span EMI suppression.

 Excellent in the “Pop-Click” noise suppression.

 High PSRR: -70 dB (217Hz).

 Support 1.8V control logic.

 0.1 THD+N (0.4W output power, 4.2V power).

 1.15W output power(10 THD ,4.2V power,8Ω load).

 High efficiency in 90.

 Low quiescent current (2.6mA).

 Low shut down current ( <0.1uA).

 Over current protection, hyper thermal protection.

 ESD discharged protection : ±8kV (HBM).

 Latch-up : ± 450 mA.

 Available in FC-9 Package

APPLICATION

 Mobile phone

 PDA, GPS, MP3

 Portable electronic devices