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8SoundsUSB rev3.0.2.zip (8.3 MB)
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| Name | Modified | Size | Downloads / Week |
|---|---|---|---|
| Parent folder | |||
| 8SoundsUSB_Firmware_400MHz_3.0.2.xe | 2017-03-23 | 1.3 MB | |
| 8SoundsUSB_Firmware_500MHz_3.0.2.xe | 2017-03-23 | 1.3 MB | |
| README.txt | 2017-03-22 | 2.1 kB | |
| 8SoundsUSB.xn | 2017-03-20 | 4.4 kB | |
| 8SoundsUSB rev3.0.2.pdf | 2016-03-09 | 4.2 MB | |
| 8SoundsUSB-MIC_rev3.0.2.pdf | 2016-03-09 | 400.3 kB | |
| 8SoundsUSB_MIC rev3.0.2.zip | 2016-03-09 | 6.8 MB | |
| 8SoundsUSB rev3.0.2.zip | 2016-03-09 | 8.3 MB | |
| AT25S.spec | 2016-01-26 | 755 Bytes | |
| 8SoundsUSB_Firmware_3.0.2.xe | 2016-01-26 | 852.6 kB | |
| Bill of Materials-8SoundsUSB rev3.0.2.pdf | 2016-01-26 | 16.1 kB | |
| Totals: 11 Items | 23.0 MB | 19 | |
FEATURES * Connectivity USB Type B - USB powered * Optional 5V external power supply (REV3+) * USB 2.0 compatibility - High-Speed devices 480Mb/s compatible via a USB Hub powered * Drivers - Mac, Windows, Linux - Generic USB Audio Class 2 ** Windows need third party driver. * 8 synchronized analog differential inputs * RJ11 input format, all managed as individual channels * 100kΩ load impedance * providing 4.3 Volts for microphones * 2 Analog stereo outputs (REV3+) * 3.5 mm jack output format * 10 kΩ source impedance * XMOS XS1-L16A-128 Processor * 800/1000 MIPS, 16 threads depending on speed grade. ** BOM with 800 MIPS device. * 50% CPU is busy to complete the audio acquisition * Support for standard sampling frequencies * 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz * XSYS2 connectivity * Program the processor using the debug adapter XMOS XTAG2 ** Future use * Quality ** 0.1% THD, noise Floor medium -132dBv and -112dBv maximum ** ENOB 22-bit ** Test points * Multiple connections test points ADC/DAC, power supply, etc. LICENSE Creative Commons Attribution-ShareAlike 2.5 Canada (CC BY-SA 2.5 CA) http://creativecommons.org/licenses/by-sa/2.5/ca/ REVISIONS REV3.0.2 * Fixed part numbers for FAB/BOM ** Changed 1V0 Regulator (U8) to ST1S06PUR (for supply constraints) ** Changed SPI Flash (U12) to AT25SF041-SSHD (for supply constraints) ** Changed 1V8 (U13) to NCP500SN18T1G (for supply constraints) KNOWN PROBLEMS : * C31 value is 2.2uF not 2.2nF like displayed in the schematic, BOM value were OK. * XMOS XS1-L16A-128-QF124-C8 needs careful attention to be soldered properly. * Some capacitor footprints and layout around codec0 need to be improved to avoid assembly problems. * Assembly not tested with XMOS XS1-L16A-128-QF124-C10 device. REV3.0.0 & REV3.0.1 * Fixed part numbers for FAB/BOM. * Added second stereo output * Updated firmware to REV3 * Removed wide input external DC supply, using 5V input instead REV2.0.1 * Part number and manufacturer added in 8SounsdUSB.xls file. (all other files are still good at REV2.0)
