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USB sound card - Electronic Circuits and Diagrams ...
https://www.circuitstoday.com/usb-sound-card
The circuit gets control data and audio data from the USB through the D+ and D- pins of the PCM2702 all the data transferring is carried out at full speed. The decoded audio signals will be available at the VOUTL and VOUTR pins of the IC. The 12MHz crystal is connected between the XT0 and XT1 pins of the IC.
(PDF) USB sound card Electronic Circuits and Diagram ...
https://www.academia.edu/26167215/USB_sound_card_Electronic_Circuits_and_Diagram_Electronics_Projects_and_Design
The circuit gets control data and audio data from the USB through the D+ and D- pins of the PCM2702 all the data transferring is carried out at full speed. The decoded audio signals will be available at the VOUTL and VOUTR pins of the IC. The 12MHz crystal is connected between the XT0 and XT1 pins of the IC.
USB SOUND CARD RADIO INTERFACE PROJECT – Al's Blog-o …
http://gritzmacher.net/tech-stuff/usb-sound-card-radio-interface-project/
I had USB sound cards, but not the interface circuits between them and the radio. So I would need to build that up. So what do I end up with? Rig interface for frequency control – 1 USB port. Contest keyer – 2 USB ports. Sound card interface – 3 USB ports and an interface box. Lots of cables. Three USB ports would nearly fill my laptop.
The 10 Best Budget (Under $100) Audio Interfaces for …
https://consordini.com/best-budget-audio-interfaces-under-100/
Building A ‘high-end’ USB Audio DAC | Hackaday
https://hackaday.com/2013/08/27/building-a-high-end-usb-audio-dac/
the PCM2707C from Texas Instruments which takes care of the USB communication and outputs I2S audio data the PCM1794A, a 132dB SNR 24-bit 192kHz DAC which receives I2S protocol the OPA4134, a high...
USB Interface IC – Mouser
https://www.mouser.com/c/semiconductors/integrated-circuits-ics/interface-ics/usb-interface-ic/
45 uA. - 40 C. + 85 C. Reel, Cut Tape, MouseReel. USB Interface IC Highly Integrated Small Form Factor USB Type-C Power Delivery 3.0 Port Controller with I2C Interface, Standalone UFP Mode, Dead Battery Support at +1.8V-3.3V. Enlarge. Mfr. Part #. UPD350A/Q8X.
USB pinout, wiring and how it works! - …
https://www.electroschematics.com/usb-how-things-work/
The USB cable provides four pathways- two power conductors and two twisted signal conductors. The USB device that uses full speed bandwidth devices must have a twisted pair D+ and D- conductors. The data is transferred through the D+ and D- connectors while Vbus and Gnd connectors provide power to the USB device. usb A&B male & female pinout
The USBlink - a home-brew digital modes interface - G4ILO
http://www.g4ilo.com/usblink.html
The SignaLink USB Interface is a USB powered device that contains a sound card and VOX circuitry that keys the radio PTT whenever the digital mode software goes into transmit and produces audio.
USB Audio and USB Type-C headphones explained - …
https://soundguys.com/usb-audio-explained-18563/
USB IF USB Audio Class transfers more than just audio data. The AudioControl interface grants control over headset features like microphone volume, channel mixing, and even on-device EQ, if supported by the headphone. New USB ADC 3.0
Radio/PC Interfaces: Everything You Need to Know
https://www.amateur-radio-wiki.net/radio-pc-interfaces/
Interfaces can be fairly simple and thus are easily home-brewed. Here are 2 schematics. The first one is for PCs with a serial port being used for PTT, the second one for an Asus Eee netbook. It uses a VOX circuit for PTT. Tips for using interfaces Using the signaling USB with and ACER Aspire ONE for WSPR and MMSSTV / MMVARI File:Signalink.pdf
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