Teledyne LeCroy QPHY-USB - Manual (Page 52)

52
QPHY-USB Operator’s Manual Rev F
Test Results
Bus-powered
Hub
Self-powered
Hub/System
Laptop
Battery powered Self powered
Load type 100 mA 500 mA __100__500 mA 500 mA
V
NL
V
LOADED
V
UPSTREAM
V
DOWNSTREAM
V
DROP
V
DROOP
Less than
330 mV
Reporting Results
No Load Voltage: passing values are from 4.75 to 5.25 V
Loaded Voltage: passing values are from 4.75 to 5.25 V
Upstream Voltage: passing values are from 4.40 to 5.25 V
Downstream Voltage: passing values are from 4.75 to 5.25 V
Voltage Drop
Droop Voltage
Note: Please do not connect a Hub or a Host to the droop fixture longer than 5 minutes. Resistance may become unstable under high
temperature. Touching the resistance area may result in scalding or burning.