EUA2075B Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – 2.5W/CH Stereo Filterless Class-D Audio Amplifier with 64-Step DC Volume Control

EUA2075B
2.5W/CH Stereo Filterless Class-D Audio
Amplifier with 64-Step DC Volume Control
DESCRIPTION
The EUA2075B is a high efficiency, 2 channel bridged-tied
load (BTL), class-D audio power amplifier. Operating from
a 5V power supply, EUA2075B is capable of delivering
2.5W/channel of continuous output power to a 4Ω load
with 10% THD+N. The EUA2075B features an advanced
64-step DC volume control which offers a range of speaker
gain from -70dB to 20dB. The AGC detects output signal
clip due to the over level input signal and suppresses it
automatically. Moreover the AGC can adapt the output clip
caused by power supply voltage down with battery. The
new filter-less architecture allows the device to drive the
speaker directly, without low-pass output filters, which will
save system cost and PCB area.
The EUA2075B also features short-circuit and thermal
protection preventing the device from being damaged
during a fault condition. The EUA2075B is available in
16-pin SOP package.
Typical Application Circuit
FEATURES
Wide Supply Voltage: 2.7V to 5.5V
Unique Modulation Scheme Reduces EMI Emission
2.5W/ch into an 4Ω Load From 5V Supply
64-Step DC Volume Control
Internal AGC Function
Thermal and Short-Circuit Protection
Integrated Click and Pop Suppression
Available in SOP-16 Package
RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
APPLICATIONS
LCD Monitors/TVs
All-in-One PCs
Portable Audio
Notebook PC
DS2075B Ver 1.0 June 2014
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