EUA2123 Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – 20-W Stereo Class-D Audio Power Amplifier

EUA2123
20-W Stereo Class-D
Audio Power Amplifier
DESCRIPTION
The EUA2123 is a high efficient Class-D audio power
amplifier for delivering up to 2× 20W into a 4Ω stereo
mode with a single-ended (SE) configuration or 1× 40W
into an 8Ω mono mode with a bridge-tied-load (BTL)
configuration. The high efficiency of the EUA2123
eliminates the need for an external heat sink when playing
music.
The gain of the amplifier is controlled by two gain select
pins. The gain selections are 20, 26, 32, 36 dB. Short
circuit and thermal-overload protection prevent the device
from being damaged during a fault condition.
FEATURES
z 2× 20W, THD=10% at 4Ω Load from a 24V Supply
z 2× 10W, THD=10% at 8Ω Load from a 24V Supply
z 1× 40W, THD=10% at 8Ω Load from a 24V Supply
z Operates from 10V to 30V
z Unique Modulation Scheme
z High Efficiency up to 90%
z Four Selectable Gain Settings
z Internal Oscillator
z Single-Ended Analog Inputs
z Mute and Shutdown Control
z Integrated On/Off /Mute Pop Suppression
z Thermal Protection with Auto Recovery
z Short-Circuit Latch-off Protection
z Space-Saving Surface-Mount 24-pin TSSOP Package
z RoHS compliant and 100% lead(Pb)-free
APPLICATIONS
z Televisions
Typical Application Circuit
DS2123 Ver 1.0 Feb. 2009
Figure1.
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