AN3959 datasheet(1/65 Pages) STMICROELECTRONICS

Part #	AN3959

Description	The purpose of this application note is to describe

PDF	65 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 65 page

December 2011

Doc ID 022081 Rev 3

1/65

AN3959

Application note

2.0-channel demonstration board

based on the STA381BW and STA381BWS

Introduction

The purpose of this application note is to describe:

■ how to connect the STA381BW/STA381BWS 2.0-channel demonstration board

■ how to evaluate the performance of the demonstration board with significant electrical

curves

■ how to avoid critical issues in the PCB schematic and layout of the

STA381BW/STA381BWS

The STA381BW/STA381BWS demonstration board is configured for 2.0 BTL channels,

releasing up to 2 x 20 W into 8 ohm of power output at 18 V of supply voltage in the VQFN48

package. It represents a total solution for the digital audio power amplifier.

Figure 1.

STA381BW/STA381BWS 2.0-channel demonstration board

www.st.com

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