Yoyodyne
Consulting The USB5102 with the optional enclosure is a nice combination for those who like to take their music with them.
Firmware for the AT32UC3A3 is experimental and constantly being improved. Code can be found in the SDR-Widget google group or you may download the latest code branches from the GIT repository
Hardware Features:
- Compact 110mm X 60.5mm board
- Powered from the USB port or optionally you can supply 5vdc to the DAC separately.
- Separate regulators for AVdd, Dvdd, clock and cpu.
- Processor firmware can be updated by the user.
Performance:
The PCM5102 is a 32bit DAC with 112db dynamic range with sampling to 192k. Output is quoted as 2vrms.
When the USB5102 is used on a computer running Linux with a kernel newer than 2.6.38 you can use the full sample range up to 192k. If you are using a computer running Win7 you can download a driver from Nikolay . Follow the instructions included in the archive. This driver is untested on Windows XP and any other version of Windows.
When the USB5102 is used on a computer running Linux with a kernel newer than 2.6.38 you can use the full sample range up to 192k. If you are using a computer running Win7 you can download a driver from Nikolay . Follow the instructions included in the archive. This driver is untested on Windows XP and any other version of Windows.
Build difficulty:
The kit uses 0603 and 0805 sized SMT components and has a LQFP144_20 cpu. The kit requires a steady hand and a measured approach to building. It is not impossible for a beginner to build the kit but it is not recommended. Currently, there are no 'instructions' on how to assemble the board and no hand-holding is provided. Schematics and component placement are the only aids provided.
The kitting system is rudimentary but functional.
Prices and Ordering:
Kit is sent in a bubble mailer via first class mail. Delivery time is 2 weeks in North America to over 4 weeks in some parts of the world.Documentation:
Documentation for the kit is located here.
Logbook
- Jan 27,2012
- Finally have a board assembled and running the lastest code from Alex. There will be 15 kits available. - Nov 16, 2011
- The boards have arrived and I have a fancy steel stencil for LQFP144 which should make life easier for assembly. I should have a running board by the weekend. - Nov 6, 2011
- Boards ordered and expect delivery in Nov16-Nov20. Updated archive to include board layout image. - Oct 31, 2011
- Added separate regulators for AVdd and DVdd. Board now contains 4 regulated supplies. - Oct 30, 2011
- Side tracked with other issues. However I did add some extra ps filtering. I will order the card the first week of Nov. - Oct 20, 2011
- Minor tweaks to the layout.
- Changed output RCA to KYCON which has gold plated model (user purchase option from Mouser).
- Added 3.5mm stereo connector.
- Boards to be ordered Friday, - Oct 13, 2011
- Layout completed and boards to be ordered in a few days.
Board rendered using gEDA/pcb on Linux
©2009-2012 Yoyodyne Consulting
Last modified Fri Jan 27 15:15:39 2012
Last modified Fri Jan 27 15:15:39 2012