Audio Extension Changelog

This page highlights the new features, improvements, and changes made in each revision.

2.3.0 Next

• Replace TLV9002IDSGR with TS972IQT for more output current

2.2.0 Fail

• Add TLV9002IDSGR Op-Amp to buffer the audio output

Note

C15 and C16 cause problems. The Op-Amp generates further noise but does not improve the overall throughput.

2.1.0 Fail

• Silkscreen improvement
• Change C4, C12, C8 and C14 to 50V 1210
• Add C15 and C16 additionally to C8 and C14 to double the capacity

Note

Audio output is limited, only 50% reach the bus.

2.0.0

• Change Extension Connector pinout
• Use ES8311 mono codec instead of ES8388 codec
• Differential audio in- and outputs
• Remove VCC from extension connector
• Remove second channel in- and outputs

Note

Audio output is limited, only 50% reach the bus.

1.0.0 Initial release Fail

No changelog available

Note

Audio output and input does not work, reason unknown. ES8388 is now discontinued by Everest Semiconductor.