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Preliminary
VA2223
Filterless Class D Audio Amplifier
General Description
Features
Preliminary
The VA2223 is a cost-effective filter-less - Operation Voltage from 4.5V to 26V
Class D stereo audio power amplifier that operates - Maximum 90% Efficiency with an 8Ω Speaker
in wide range of various power supplies. VA2223 - 2x30W@8Ω, THD+N <2% at 24V
provide gain control with simple voltage dividers. - 2x30W@4Ω, THD+N =1% at 18V
VA2223 can output 30W per channel into 4Ω or 8Ω - 1x50W@4Ω, THD+N=10% at 18V (PBTL)
load with lower supply current and fewer external - 1x60W@3Ω, THD+N<1% at 21V (PBTL)
components for driving bridged-tied stereo speak- - Multiple Switching Frequencies for AM Avoid-
er directly.
VA2223 Datasheet
