STA381BW
8 Applications
Applications
The following figures illustrate typical application schemes for the STA381BW. The line/headphone out can be fed either with an external analog source (
Figure 46 ), or with the
F3X output, allowing to have the audio content coming from the digital interface on both the power output and on the line/headphone out (
Figure 47
). Regardless of the LINEINx pins input, the F3Xx outputs can be connected to an external amplifier as an auxiliary analog output (
Figure 48
). The F3X audio content is provided by the device digital audio interface.
Figure 46. External audio source to line/headphone out application scheme
Note: For further information, please refer to application note AN3959, 2.0-channel demonstration board based on the STA381BW and STA381BWS.
DocID018835 Rev 8 167/174
Applications STA381BW
Figure 47. F3X (from SAI) source to line/headphone out application scheme
Note: For further information, please refer to application note AN3959, 2.0-channel demonstration board based on the STA381BW and STA381BWS.
168/174 DocID018835 Rev 8
