代理音频功率放大器 VA2202 4个可选的增益音量控制

Description

The VA2202 is a costeffective Class D stereo audio power amplifier that operates in wide range of various power supplies. VA2202 provide volume control with four selectable gain settings. VA2202 can output 10W per channel with lower supply current and fewer external components for driving bridgedtied stereo speaker directly. VA2202 operates with high efficiency energy conversion up to 89% (8( Load) so that the external heat sink can be eliminated while playing music.

VA2202 also integrates AntiPop, Output Short & OverHeat Protection Circuitry to ensure device reliability. This device output are completely protected from shorts to ground or supply pin as well as protected from Output Pin to Output Pin short.

Features

     9.2W/CH into 8( speaker (THD+N=10%) @12V

     10.8W/CH into 8( speaker(THD+N=10%) @13V

     Wide Operation Voltage from 5.5V to 15V

     Typical Efficiency with an 8( speaker is 89%

     Four selectable gains: 20dB, 26dB, 32dB and 36dB

     Configurable singleended and differential input

     Eliminates output clamp and bootstrap capacitors

     Automatic monitor and restore scheme for overheat protection

     Popular TSSOP28 package with exposed pad

Applications

     LCD Monitor/TV

     Sound Bar

     Docking Speaker for Handsets

     Battery Powered Portable Speaker

     HiFi Audio Systems