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name="CmsSlhc" |
Please log AMC13 test activity below, blog style (new entries at top) |
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> | 2013-06-25, dickens, dzou
- 40 MHz and 900 mV peak to peak square. Testing probe parts:
- Both probes that connect directly to board have work in previous tests.
- Oscilloscope Trigger Setup Notes:
- Chann 2 AWG output signal, Chann 4 probe signal
- Trigger on Chann 4 Width, Greater than 10.0, Level: -22mV
- WL-PBus SN 1392: working, SN 1491: working
- D310 Connector, SN 2067 and 2072: both working
- Clock Delay test w/ temperature control:
- Probe on input to U3, Temperature control on U3
- Delay measured at various temperatures: 30, 35, and 40 Celcius
- Clock Delay test w/ temperature set at 40 deg C, power off for roughly 8 min, while keeping chip at 40 deg C. Turning on board still gives exponential Clock shift:
Plot of Delay plotted against time after power on
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| | 2013-06-24, dickens, dzou
- Measured the temperature of the U2 chip on T1 before, during, and after the start up of AMC13 SN 33. This provides some insight about the operating range for future , temperature-controlled tests. Please note, however, that the thermistor device functions as a heat sink, so we can expect the actual operating temperature of the chip to be somewhat higher. Setup:
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