EUA2068 Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – 3.3W Mono Class-D Audio Power Amplifier

EUA2068
3.3W Mono Class-D Audio Power Amplifier
with Non-Clip, Power Limit and Noise Gate
DESCRIPTION
The EUA2068 is a high efficiency, 3.3W mono class-D
audio power amplifier with Non-Clip, Power Limit and
Noise Gate. A low noise, filterless PWM architecture
eliminates the output filter, reducing external component
count, system cost, and simplifying design.
EUA2068 having power limit interlock non-clip function,
controls gain automatically and prevents output signals
from being clipped at the supply voltage. In addition, this
power limit function permits the maximum output to be
arbitrarily specified to 100mW to 1000mW according to a
speaker to use. The “Noise Gate” function removes the
TDMA, DAC or white noise which comes in at no-signal
state, by muting an output signal automatically when
output level is low. With this function, the very low noise
characteristics can be realized.
Furthermore, EUA2068 also integrate overcurrent and
overtemperature protection functions, DC output protection
function, under-voltage malfunction prevention function,
as well as EMI noise and the pop noise reduction
functions.
The EUA2068 is available in space-saving WCSP package.
Typical Application Circuit
FEATURES
Unique Modulation Scheme Reduces EMI Emissions
Unique Non-Clip function , Variable NCNA,
NCNB,NCNOFF mode Select
3.3W 4-Ω Load at V_DD=5V, THD+N <10%
Low Quiescent Current, I_DD=4mA @5V
2.5V to 5.5V Wide Supply Voltage
Overcurrent Protection Function (OCP)
Overtemperature Protection Function (OTP)
DC Output Protection Function (DCOP)
Under-voltage Malfunction Prevention Function
(UVL)
Short Circuit Auto-Recovery
Power Limit Function
Noise Gate Function
1.5mm × 1.5mm Wafer Chip Scale Package (WCSP)
RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
APPLICATIONS
Smart Phones/Cellular Phones
Portable Multimedia Players
DS2068 Ver1.2 July 2014
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