Magnitude And Frequency Response Measurements Using A Two-Port Network Analyzer; Measuring The Magnitude And Frequency Response Of The I-Channel - Analog Devices EVAL-ADAQ8088EBZ User Manual

EVAL-ADAQ8088EBZ
MAGNITUDE AND FREQUENCY RESPONSE MEASUREMENTS USING A TWO-PORT
NETWORK ANALYZER
MEASURING THE MAGNITUDE AND FREQUENCY
RESPONSE OF THE I-CHANNEL
I_INP as the Active Input
To measure the magnitude and frequency response of the I-
channel with the I_INP input as the active input and using a
two-port network analyzer (see Figure 4), take the following
steps:
1. Use an SMA cable to connect J1 of the EVAL-
ADAQ8088EBZ to Port 1 of the network analyzer.
2. Leave J2 of the EVAL-ADAQ8088EBZ floating.
3. To measure the frequency response at the I_OUTP
output of the EVAL-ADAQ8088EBZ, take the following
steps:
a. Use an SMA cable to connect J7 of the EVAL-
ADAQ8088EBZ to Port 2 of the network analyzer.
b. Terminate J5 to 50 Ω.
c. Set the network analyzer output, Port 1, to a power
level of −20 dBm.
d. Observe the frequency response on Port 2 of the
network analyzer.
4. To measure the frequency response at the I_OUTN
output of the EVAL-ADAQ8088EBZ, take the following
steps:
a. Use an SMA cable to connect J5 of the EVAL-
ADAQ8088EBZ to Port 2 of the network analyzer.
b. Terminate J7 to 50 Ω.
c. Set the network analyzer output, Port 1, to a power
level of −20 dBm.
d. Observe the frequency response on Port 2 of the
network analyzer.
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User Guide
Rev. 0 | Page 5 of 12
I_INN as the Active Input
To measure the magnitude and frequency response of the I-
channel with the I_INN input as the active input and using a
two-port network analyzer (see Figure 4), take the following
steps:
1. Use an SMA cable to connect J2 of the EVAL-
ADAQ8088EBZ to Port 1 of the network analyzer.
2. Leave J1 of the EVAL-ADAQ8088EBZ floating.
3. To measure the frequency response at the I_OUTP and
I_OUTN outputs of the EVAL-ADAQ8088EBZ, repeat
Step 3 and Step 4 of the procedure in the I_INP as the
Active Input section.
Figure 4. Two-Port Network Analyzer (E5071 Model)
UG-1825