AN3959 Datasheet, PDF (1/65 Pages) STMicroelectronics – The purpose of this application note is to describe

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
December 2011
Doc ID 022081 Rev 3
1/65
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