20-W Stereo Class-D
Audio Power Amplifier
DESCRIPTION
The EUA2100 is a high efficiency, 2 channel bridged-tied
load (BTL), class-D audio power amplifier. Operating from
a 18V power supply, EUA2100 is capable of delivering
20W/ channel of continuous output power to a 8Ω load
with 10% THD+N. The EUA2100 features a differential
input architecture offering improved noise immunity over a
single-ended (SE) input amplifier. Amplifier gain is
internally configured and can be selected to 20, 26, 32 or
36dB utilizing the Go and G1 gain select pins.
The EUA2100 also features short-circuit and thermal
protection preventing the device from being damaged
during a fault condition. The EUA2100 is available in
thermally efficient 48-pin TQFP package.
EUA2100
FEATURES
Wide Supply Voltage: 8V to 26V
Unique Modulation Scheme Reduces EMI Emission
20-W/ch into an 8-Ω Load From a 18-V Supply
10-W/ch into an 8-Ω Load From a 12-V Supply
15-W/ch into an 4-Ω Load From a 12-V Supply
90% Efficient Class-D Operation Eliminates
Need for Heat Sinks
Four Selectable, Gain Settings
Differential Inputs
Thermal and Short-Circuit Protection
Clock Output for Synchronization With Multiple
Class-D Devices
7mm
×
7mm, 48-pin TQFP Package
RoHS compliant and 100% lead(Pb)-free
APPLICATIONS
Televisions
Typical Application Circuit
Figure1.
DS2100
Ver 1.0
Mar. 2009
1
EUTECH [ EUTECH MICROELECTRONICS INC ]
