EUA4996
2.8-W Stereo Fully Differential
Audio Power Amplifier
DESCRIPTION
The EUA4996 is a stereo fully-differential audio
amplifier, capable of delivering 2.8W/channel of
continuous output power to a 3Ω load with 10% THD+N
from a 5V power supply.
The EUA4996 features independent shutdown control
for each channel. The feedback resistors are internal,
allowing the gain to be set with only two input resistors
per channel. High PSRR and fully differential
architecture provide increased immunity to noise and RF
rectification, and a fast startup time with minimal pop,
making the EUA4996 idea for notebook PC, smart
phone applications.
FEATURES
Output Power
- 2.8W/Ch Into 3Ω at 5V, THD=10% (Typ.)
- 1.99W/Ch Into 4Ω at 5V, THD=1% (Typ.)
- 1.27W/Ch Into 8Ω at 5V, THD=1% (Typ.)
Wide Supply Voltage: 2.5V to 5.5V
Independent Shutdown Control for Each Channel
High PSRR : 86dB
Fast 23ms Startup Time with Minimal POP
Low 8mA Quiescent Current at 5V Supply and 1µA
Shutdown Current
Thermal Protection
4mm
×
4mm TQFN-16 Package
RoHS Compliant and 100% Lead(Pb)-Free
APPLICATIONS
Notebook PCs
Smart Phones
Typical Application Circuit
Figure 1.
DS4996
Ver0.1
July 2008
1
EUTECH [ EUTECH MICROELECTRONICS INC ]
