Measure OIP2 of Device Under Test

Use the OIP2 Testbench block to verify the output second-order intercept (OIP2) of a device under test (DUT).

Connect the blocks as shown in the model.

Set the parameters for DUT and the testbench.

Amplifier block:

• Available power gain — 10 dB

• Intercept points convention — Input

Mixer block:

• Available power gain — 5 dB

• Local oscillator frequency — 2.0 GHz

• Add Image Reject filter — on

• Intercept points convention — Output

• IP2 — 32 dBm

• Filter type — Highpass

• Implementation — Constant per carrier

• Passband edge frequency — 2.05 GHz

OIP2 Testbench block:

• Input frequency (Hz) — 2.1e9

• Output frequency (Hz) — 0.1e9

• Simulate noise (both stimulus and DUT internal) — off

Run the model. You will see that the display shows an OIP2 value of 32 dBm since the OIP2 was specified only in the Mixer block.