#ac696n — Public Fediverse posts
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Moving beyond basic low-power configuration on the JL JieLi AC696N, there are three advanced power management settings that can prevent intermittent crashes and improve user experience. Here's what I've learned while debugging an SD-card-based audio product.
All of these can be validated on the AC696N development board before porting to custom hardware. Taking the time to tune them saves weeks of field debugging.
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The analog section of a Bluetooth audio SoC is where careful design pays off. Notes from the JieLi AC695N/AC696N guide:
For the DAC outputs, they recommend reserving positions for small inductors (100nH, 120nH, 220nH, 330nH) to form filters that can suppress high-frequency noise, specifically called out as TDD noise from a nearby mobile phone during calls.
#JieLi #AC696N #AudioDesign #Analog #PCBDesign #Electronics #OpenHardware #BluetoothAudio