AWG G3 PAD FOR PS3 Specifikace stáhnout pdf (Strana 122)

5 DUT Board Performance Considerations Correctly Terminating Signal Lines

122 System Reference, January 2001

Termination Checklist

50 Ohm Environment If you are operating in a standard 50 Ω environment, no

extra action is needed as far as component layout on the

DUT board is concerned. You define the termination in the

Level setup.

Active Load If you terminate the line with the help of the active load,

no additional action is needed as far as component layout

on the DUT board is concerned. You define the active load

in the Level setup.

Voltage Clamp If you use the clamp load (useful for high-speed CMOS

devices, where 50 Ohm loading cannot be used), there is

no additional action needed as far as component layout on

the DUT Board is concerned. You setup the voltage clamp

in the Level setup.

The concept and the use of the active load and the voltage

clamp are discussed in the Standard Test Function Refer-

ence (Part No. E7050-91013).

Series Resistor If you use the resistive divider as a termination method,

you will need space on your DUT board for the series

resistor. For best results, use surface-mounted resistors

due to their low lead inductance.

For information on specifying the series resistor, refer to

the Command Reference manual (Part No. E7050-91013).

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AWG G3 PAD FOR PS3 Specifikace Strana 122