LXE1710

Features:

*  Fully Assembled Mono Evaluation Board with LX1710 Class-D Controller IC
*  Improved SNR and Noise Floor Performance 
*  Output Power of 25W typical (LX1710, 15V_DD,  4,1% THD+N)
*  Output Power of 54W typical (LX1711, 25V_DD,  4,1% THD+N)
*  Supports Full Audio Bandwidth 
*  Terminal Block Connectors for Supply  Voltage and Speaker Connection
*  RCA Plug for Audio Input Signal 
 


Description

The AudioMAX Evaluation Amplifier Board allows the  user to quickly connect and evaluate the LX1710  Switching Class-D Mono Controller IC.  Easy-to- connect terminal blocks and an RCA plug are provided for interfacing to Power, Speaker, and Audio Input connections.  The single stage output filter has been configured to drive a 4 audio bandwidth amplification (See Application section LC filter design for component selection, calculations, and suggested inductor and capacitor values for other loads).  The LXE1710 Evaluation Board operates from a single supply voltage. 

The Class-D Amplifier Controller IC requires a minimal number of external components to create a complete amplifier solution.  See LXE1710 Evaluation  Board Schematic and Bill of Materials for circuit  specifics.  A Class-D Amplifier is a "switching" amplifier that converts a low-level, analog audio input signal into a high power, pulse-width modulated (PWM) output.  The switching frequency (500kHz typical but can be adjusted) is much higher than the  audio bandwidth (20Hz to 20kHz), and is easily filtered out with a simple LC filter.  The support circuitry can be generally grouped into three areas (input circuit, output power stage, and output filter).