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AFG3xxxx
Function
Frequency
sine
20.00 kHz
reading (dBm)
reading - reference Bn =
An - A1 (dBc)
Cn = 10 Bn/20
Sample: reading
reading - reference
Cn =
AFG3000C and AFG3000 Series Specifications and Performance Verification
7. Calculate each B1 to B7, C1 to C7 value and the THD using the following
table.
NOTE.
When all the harmonic components are -62 dBm or less, the calculation
of THD can be skipped because it is THD < 0.2%.
8. Verify that the THD is less than 0.2%.
9. (Two channel models only) Repeat steps 2 through 4 for the channel 2 output.
Measurement
Fundamental
2nd
=
reference
20 kHz
40 kHz
A1 =
A2 =
B1 = 0
B2 =
C1 = 1
C2 =
THD =
1.5 dBm
-58.5 dBm
0
-60 dBm
1.000
0.001
0.1987%
3rd
4th
60 kHz
80 kHz
A3 =
A4 =
B3 =
B4 =
C3 =
C4 =
-58.5 dBm
-63.5 dBm
-60 dBm
-65 dBm
0.001
0.000562
Performance verification
5th
6th
100 kHz
120 kHz
A5 =
A6 =
B5 =
B6 =
C5 =
C6 =
-58.5 dBm
-63.5 dBm
-60 dBm
-65 dBm
0.001
0.000562
7th
140 kHz
A7 =
B7 =
C7 =
Limit
< 0.2%
-63.5 dBm
-65 dBm
0.000562
Limit
< 0.2%
63
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