Theory of operation
Introduction
The TDP7700 Series TriMode Probes are designed for use with 6 Series MSO and newer oscilloscopes. Three TDP7700
Series TriMode Probe models are available with bandwidths from 4 GHz to 10 GHz. 6 Series MSO oscilloscope models are
available at comparable bandwidths. These probe and oscilloscope models feature the high performance TekVPI intelligent
probe interface. Several TekFlex tip models are available to support different application requirements.
The TDP7700 Series probes and probe tips contain device-specific S-parameter data that, when transferred to the host
oscilloscope after the initial connection is made, create unique system DSP filters. These DSP filters optimize high
frequency performance of the probe and probe tip signal path.
The TekFlex connector allows for quickly changing tip accessories with a simple pinch to open operation. Accessories
include small solder-in tips for accessing high speed signals in tight spaces, a 2.92 mm adapter for connecting to fixtures
and pre installed test points and a high bandwidth adjustable browser for debugging and non permanent connections.
Figure 1: TDP7700 Series TriMode probe components
Probe components
TDP7700 Series probes are comprised of a probe compensation box (comp box), a TekFlex connector for attaching probe
tips, and an interconnect cable that transfers measured signals, power, and control signals between the probe comp box
and the TekFlex connector probe head. A TekFlex probe tip must be inserted into the TekFlex connector probe head to
make the final connection to the DUT (device under test).
Probe compensation box
The probe compensation box assembly mates to the host instrument through an intelligent FlexChannel probe interface.
Power, control signals, and the signal measured by the probe are transferred to and from the oscilloscope through the
FlexChannel interface. The comp box includes a button to select the TriMode input mode for probe tips that support TriMode
functionality: (For more information see
Theory of operation
TDP7700 Series TriMode™ Probes Technical Reference
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