Qualification
| Abbreviation |
Name |
Comment |
| oca1 |
Open-Canalyzer |
|
| oca2 |
Open-Canalyzer |
|
| DMM |
Voltcraft VC-60 |
|
| Scope |
Rigol DS1054Z |
|
| Abbreviation |
Name |
Comment |
| liboca |
oca library |
|
| oca-qualification |
oca qualification executable |
Tool that generates USB and CAN traffic |
Qualification setup / environment
Insert diagram of connection setup.
Add table with variables like temperature
Power supplies
First check for shorts on each power supply net using the DMM.
| Name |
Min |
Max |
Measured |
Pass/Fail |
| VUSB -> GND |
10k Ohm |
INF |
|
|
| 5V_ISO -> GND_ISO |
10k Ohm |
INF |
|
|
| 3V3(VCC) -> GND |
10k Ohm |
INF |
|
|
Output voltage
| Name |
Min |
Max |
Measured |
Pass/Fail |
| VUSB -> GND |
4.40V |
5.25V |
|
|
Noise
Startup and shutdown
5V Isolated
Output voltage
| Name |
Min |
Max |
Measured |
Pass/Fail |
| 5V_ISO -> GND_ISO |
4.85V |
5.15V |
|
|
Isolation resistance
| Name |
Min |
Max |
Measured |
Pass/Fail |
| VUSB -> 5V_ISO |
1000 Mohm |
INF |
|
|
| GND -> GND_ISO |
1000 Mohm |
INF |
|
|
Noise
Ripple
Startup and shutdown
Thermal image
3V3
Output voltage
| Name |
Min |
Max |
Measured |
Pass/Fail |
| 3V3(VCC) -> GND |
3.235V |
3.365V |
|
|
Noise
Ripple
Startup and shutdown
Thermal image
Clocks
8MHz oscillator
| Name |
Min |
Max |
Measured |
Pass/Fail |
| Frequency |
7.992 MHz |
8.008 MHz |
|
|
| Jitter |
|
|
|
|
| Rise time |
|
|
|
|
| Fall time |
|
|
|
|
CAN
Termination
Signal integrity
CAN_TX / CAN_RX
CAN_H / CAN_L
USB
Signal integrity
USB_DP / USB_DN