EUA2069 Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – 2W High Efficiency Mono Class-D Audio Power Amplifier with Non-Clip, Power Limit

EUA2069
2W High Efficiency Mono Class-D Audio
Power Amplifier with Non-Clip, Power Limit
DESCRIPTION
The EUA2069 is a high efficiency, low noise, class-D
audio power amplifier. A low noise, filterless PWM
architecture eliminates the output filter, reducing external
component count, system cost, and simplifying design.
The power amplifier, having power limit interlock non-clip
function, controls gain automatically and prevents output
signals from being clipped at the supply voltage. Moreover,
EUA2069 permits an accurate output in the entire supply
voltage range of battery (3.3V to 4.3V) with the new
architecture of charge pump. EUA2069 has three output
power modes: 0.8W, 1W and 1.2W, speakers with rated
power of 0.7W or higher is recommended. And with the
efficiency up to 82%, EUA2069 increases the working
time of the smart phone greatly.
Furthermore, EUA2069 also integrates over current and
over temperature protection functions, DC output
protection function and EMI noise and the pop noise
reduction functions.
The EUA2069 is available in space-saving 1.8mm×1.82
mm WCSP-16 packages.
Typical Application Circuit
FEATURES
Unique Modulation Scheme Reduces EMI Emissions
Unique Non-Clip Function, Variable NCPA, NCPB,
NCPC, NCPOFF mode Select
Short Circuit Auto-Recovery
Low Quiescent Current and Shutdown Current
Optimized PWM Output Stage Eliminates LC Output
Filter
Fully Differential Design Reduces RF Rectification
and Eliminates Bypass Capacitor
Overcurrent Protection Function (OCP)
Overtemperature Protection Function (OTP)
DC Output Protection Function (DCOP)
Power Limit Function
2W 8-Ω Load at VDD =4.2V, THD+N <10%
1.8mm×1.82mm WCSP-16 Package
RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
APPLICATIONS
Smart Phones/Cellular Phones
Portable Multimedia Players
DS2069 Ver1.3 Dec. 2015
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