EUA2008 EUTECH | Alldatasheet
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Technical content
DS2008 Ver 1.0 Oct. 2009 3-W Stereo Class-D Audio Amplifier with 32-Step DC Volume Control
DESCRIPTION
The EUA2008 is a high efficiency, 2 channel bridged-tied load (BTL), class-D audio power amplifier. Operating from a 5V power supply, EUA2008 is capable of delivering 3W/ channel of continuous output power to a 3Ω load with 10% THD+N. The EUA2008 features a differential input architecture offering improved noise immunity over a single-ended (SE) input amplif ier. Stereo speaker volume is controlled with a dc voltage applied to the volume control terminal offering a range of gain from -38dB to20 dB. The EUA2008 also features short-circuit and thermal protection preventing the device from being damaged during a fault condition. The EUA2008 is available in thermally efficient 24-pin TSSOP package. Typical Application Circuit
FEATURES
z Unique Modulation Scheme Reduces EMI Emission z Efficient 5V Class-D Technology - 3W Per Channel into 3 Ω Load (THD+N=10%) - Low Supply Current, 7mA - Low Shutdown Control, 1µA - 0.33% THD at 1.5W, 1kHz - Low Noise Floor, 62µV - Maximum Efficiency into 3 Ω, 85% - Maximum Efficiency into 8 Ω, 90% - P S R R , - 7 0 d B z No Large, Expensive LC Output Filter Required z 32-Step DC V olume Control with 2dB Steps from -38dB to 20dB z Thermal and Short-Circuit Protection z Integrated Click and Pop Suppression z 24-pin TSSOP Package with Thermal Pad z RoHS Compliant and 100% Lead(Pb)-Free Halogen-Free
APPLICATIONS
Figure1.