Dc frequency attenuation accuracy – Teledyne LeCroy WaveLink Differential Probe Series (13-25 GHz) User Manual
Page 70
WaveLink Series Differential Probe (13-25 GHz)
64
WL-HBW-A-OM-E Rev B
DC Frequency Attenuation Accuracy
NOTE: The low-frequency attenuation accuracy needs to be verified with each interconnect lead.
Because each interconnect lead has its own serial number, it should be recorded with the serial
number of the probe tip module on the Performance Verification Test Record (on page 70).
1.
Connect the male end of a BNC Tee to the Sine Wave Generator output (refer to the
following figure for setup). Set the generator's output voltage to 0 Volts.
2.
Connect one end of a BNC cable to the BNC Tee and the other end to a Female BNC-to-Male
SMA adapter.
3.
Connect the male side of the BNC-to-SMA adapter to a female end of the Probe Deskew
Fixture. Refer to the following figures to determine which side of the Deskew Fixture to use
for the probe tip module and interconnect lead to be tested.
4.
Connect another BNC cable to the free end of the BNC Tee and the other end of the cable to
the Female BNC-to-Dual Banana Plug Adapter.
5.
Connect the Banana Plug Adapter to the DMM input, verifying that the ground side of the
adapter is connected to the low side of the DMM.
6.
Attach a ProLink-CF01 Calibration Fixture to the WL-PLINK-A, or a LPA-2.92 Calibration Fixture
to the WL-2.92MM.
7.
Remove the captive screws from the ProLink-CF01 allowing the WL-PLINK-A Calibration
Fixture connectivity.
NOTE: This step is not necessary with the LPA-2.92.
8.
Connect the Calibration Fixture to Channel 1 of the oscilloscope. If using the LPA-2.92
Calibration Fixture, connect it to Channel 2. In either case, make sure that the appropriate
input (either A or B) is selected in the oscilloscope channel dialog box.
9.
Connect a BNC-to-SMA adapter to the SMA output connector of the ProLink-CF01 Calibration
Fixture, and the BNC end to a BNC Tee (as shown in the following figure). If using the LPA-2.92
Calibration Fixture, connect a BNC to 2.92mm adapter to the 2.92mm output connector of
the LPA-2.92.