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Add a Discrete Jack-Sensing Circuit to th | Maxim …
https://www.maximintegrated.com/en/design/technical-documents/app-notes/4/4607.html
The jack-sensing circuit can be used to automatically enable the MAX13330/MAX13331 when a plug is inserted into the jack. Connect the output of the jack-sensing circuit directly to the active-low SHDN pin to implement this …
Add a Discrete Jack-Sensing Circuit to the …
https://pdfserv.maximintegrated.com/en/an/AN4607.pdf
Jack-Sensing Circuit Adding a discrete jack-sensing circuit to a device typically requires just a few low-cost passive components. The exact values of each component depend on the system requirements, but the basic circuit should remain the same. Typically a four-contact audio jack is used where the extra contact is a
detection - How does an audio jack detect when a speaker ...
https://electronics.stackexchange.com/questions/1647/how-does-an-audio-jack-detect-when-a-speaker-is-plugged-in
The jack sense circuit includes left and right amplifiers and a cross-drive impedance sensing circuit. This cross-drive impedance sensing circuit, which is electrically coupled to the left and right audio ports and the left and right amplifiers, detects the resistances of left and right output loads in order to determine characteristics of a device connected to the CODEC audio jack.
Headphone Jack Sensing Using GPIO - EEWeb
https://www.eeweb.com/headphone-jack-sensing-using-gpio/
When headphones are inserted, the GPIO pin is pulled to +3.3 V and the Line Outputs are muted. The CS4202 codec can accommodate simultaneous headphone jack sensing and six channel audio configurations. However, these are mutually exclusive functions on the CS4201. The CS4202 requires a PW4046 (or newer) Windows WDM audio driver.
audio jack detection circuit - umgreview.com
https://umgreview.com/xsklazpt/audio-jack-detection-circuit.html
Filter Selection The RC filter consists of R2 and C1, and allows the jack-sensing detection times to be adjusted and the audio signals to be filtered. One is the transmitter circuit and the other is the receiver circuit, the transmitter circuit will be connected to the 3.5 mm Audio jack for audio input and the receiver circuit will be connected ...
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