VersaLogic VL-ADR-01 Reference Manual Download Page 1

 

 

 

 

 

 
 

 

 

 

Reference 
Manual

 

DOC. REV. 03/13/2015  
 

VL-ADR-01

 

USB to Audio Adapter 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for VL-ADR-01

Page 1: ...Reference Manual DOC REV 03 13 2015 VL ADR 01 USB to Audio Adapter ...

Page 2: ...ure this document is error free VersaLogic makes no representations or warranties with respect to this product and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose VersaLogic reserves the right to revise this product and associated documentation at any time without obligation to notify anyone of such changes Other names and brands may be claime...

Page 3: ...ntrols inputs and outputs Integrator s Note The stereo line level output is limited to driving a 10 kΩ impedance load This output should be connected to an external amplifier to drive either headphones or speakers Ordering Information VL ADR 01S temperature range of 25 ºC to 85 ºC Accessories The board connects to a host using a 0 5 m USB 2 0 A plug to Micro B plug cable VersaLogic part number VL ...

Page 4: ...nput signal level 2 Vp p typical Input Impedance 30 kΩ typical Output voltage level 2 Vp p typical Minimum output load impedance 10 kΩ Transient Voltage Suppression TVS Devices The ADR 01 circuitry is protected from spike and surge damage by on board Transient Voltage Suppression TVS devices on the audio line input and audio line output signals Figure 2 provides a schematic view of the connection ...

Page 5: ...2 pin 2x6 2 mm connector Can be used for remote cabling of audio in out signals and volume control switches Refer to Table 4 and Figure 4 for additional information J2 USB Micro B Connects the ADR 01 to a host CPU board through a USB interface J3 Line Input Stereo line level input J4 Line Output Stereo line level output Table 3 VL ADR 01 Switches Reference Designator Silkscreen Legend Description ...

Page 6: ...utput right 12 Line output left Notes 1 This signal connects to a 1 5 kΩ pull up resistor to either 3 3 V when operating or to 0 V in USB suspend mode 2 The optional inputs to pins 2 4 and 6 must be pulled up to 3 3 V using a 1 5 kΩ resistor pins 1 3 and 5 are intended for this use but are not required to be used They connect directly to the HID0 HID1 and HID2 inputs on the PCM2906C These inputs a...

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