1.4.1 Supply Voltage Ripple
•
Maximum 100mV peak to peak 0-20Mhz
You must ensure that the dynamic range does not exceed the static range.
1.5 Power Consumption
The power consumption values listed in this document were measured under a
controlled environment. The XTX module was mounted into a special baseboard. This
baseboard has two Hirose connectors that connect to the corresponding X3 and X4
connectors on the module. The special baseboard does not have any power consuming
components mounted on it. It provides one connector for a CRT monitor connection, a
PS2 keyboard and mouse connection, and an IDE device connection. The baseboard is
powered by a Direct Current (DC) power supply that is set to output 5 Volts and is
connected directly to the special baseboard. Additionally, positive and negative sense
lines are connected to the baseboard in order to measure the current consumption of
the module. This current consumption value is displayed by the DC power supply's
readout and this is the value that is recorded as the power consumption measurement.
All recorded values are approximate.
All external peripheral devices, such as the hard drive, are externally powered so that
they do not influence the power consumption value that is measured for the module.
This ensures the value measured reflects the true power consumption of the module
and only the module. A keyboard is used to configure the module and then it is
disconnected before the measurement is recorded. If the keyboard remained
connected, an additional current consumption of approximately 10 mA is noticed.
Each module was measured while running Windows XP Professional with SP2 (service
pack 2) and the “Power Scheme” was set to “Portable/Laptop”. The screen resolution
Copyright © 2006 congatec AG
X800m12
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