Differential Probe System : D11000PS
High-Performance Probing Solution for SDA 11000 Serial Data Analyzer
The D11000PS extends the full signal acquisition performance of the SDA 11000 to the probe tips. With 11 GHz system bandwidth, the probe enables direct measurement of high-speed serial data streams up to 6.25 Gb/s.
Choice of Interconnect Styles Without Compromising Performance
The D11000PS provides both direct Solder-In and cabled SMA connector interconnect lead assemblies. Each interconnect lead comes with a dedicated probe amplifier module that has calibration data optimized for the respective lead. This eliminates the performance compromise of using a single calibration for multiple lead types. The Solder-In lead provides the highest possible signal integrity with a high loading impedance. The dual SMA interconnect leads provide a true differential 50 Ω input. This is a convenient alternative to direct cabling into the oscilloscope inputs, freeing up the second channel for other signal input, and eliminating the need to set up waveform math and match cable delays.
Unexcelled Waveform Accuracy
When used to acquire input signals for the SDA 11000, the D11000PS provides unprecedented waveform fidelity, even with signals at highest serial data rates. The D11000PS utilizes third generation compensation calibration, the most advanced in use today, to provide optimal system response.
Each individual probe is characterized with this system. Information on the probe’s frequency and time domain responses are stored in non-volatile memory within the probe amplifier module. This information is uploaded to the SDA 11000 when the probe is connected. The probe calibration data and the SDA 11000 calibration data combine to generate new equalization filters for the composite system. The resulting compensation system corrects for frequency response deviations, as well as group delay correction and reflection cancellation.
Reproducing accurate serial data eye patterns requires maintaining precise magnitude and phase relationships between the fundamental and the odd harmonics. The advanced calibration system used in the D11000PS assures the best eye pattern fidelity.
Superior Probe Loading Characteristics
Accurate frequency response is not enough to assure good waveform fidelity. Excessive probe loading can cause waveform distortion. The D11000PS continues the legacy of LeCroy high-performance probe design, placing special emphasis on minimizing loading of the circuit under test. The Solder-In lead and dedicated probe amplifier module have a high input resistance at DC and low frequencies, allowing the probe to be used in circuits which cannot drive the low resistance of a pure transmission line probe. The direct cabled SMA inputs have 50 Ω input impedance with low VSWR.
Ease of Use
Attention to fine details during the D11000PS design process has resulted in several “ease of use” features. A common mode measure feature allows the user to measure the average common mode component with a single click in the probe control menu.
AutoColor ID lights an indicator in the probe body, matching the color of the waveform trace. When multiple channels are used, this feature instantly identifies which waveform corresponds to which probe. Several connection accessories designed specifically for the D11000PS provide convenient and secure mounting of the probe body and solder-in tip to the test circuit. DC blocking adapters extend the common mode range of the SMA cabled input for use with higher common mode voltages such as Digital Video Interface (DVI). A finger wrench allows tightening of SMA connectors on dense test fixtures.
Compatibility
The D11000PS is designed specifically for use with the SDA 11000. However, it does contain additional calibration data for use with all of the lower bandwidth WaveMaster®, SDA, and DDA 5005A series oscilloscopes and analyzers.
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