Quickly perform low-frequency response analysis with the R&S MXO5-K36 frequency response analysis (FRA) option. Easily characterize the frequency response of various electronic devices, including passive filters and amplifier circuits.

Precisely measure the control loop response (CLR) and power supply rejection ratio (PSRR) in switch mode power supplies.

• Frequency range: 10 MHz to 100 MHz
• Amplitude mode: Fixed or amplitude profile
• Amplitude level: 10 mV to 10 V into high Z; 5 mV to 5 V into 50 Ω
• Test points: 10 points to 500 points per decade

The FRA option leverages the oscilloscope's built-in waveform generator to create stimulus signals from 10 mHz to 100 MHz. By measuring the stimulus signal to output signal ratio for the device under test at each test frequency, the oscilloscope accurately plots logarithmic gain and phase for valuable insights into your device's behavior.

The R&S MXO5-K36 has user-configurable profiles of the amplitude output level from the generator. This feature optimizes the signal-to-noise ratio (SNR) at different frequency ranges, ensuring high-quality CLR and PSRR measurements.

Adjust the resolution and sweep time to your specific requirements with user-configurable points per decade. Markers on the traces conveniently correlate with table entries, making it easy to determine phase and gain margin with the auto-placement function.

Gain deeper insights by monitoring the time domain alongside the frequency domain. Identify distortion and errors in measurements caused by the injected signal, which may be difficult to detect with just the Bode plot.

Quickly access comprehensive information about each measured point, including frequency, gain, and phase shift with the measurement result table. Save screenshots, table results, or both to a USB device for reporting and efficient documentation.

FRA has a calibration capability to help optimize measurement setups for greater accuracy when passive probes are used. The calibration data can be saved for future setup for repetitive measurements. 

Choose the right probes for accurate CLR and PSRR characterization. The low-noise R&S RT-ZP1X 38 MHz bandwidth 1:1 passive probe is recommended for the R&S MXO 5 Series oscilloscope. The probe minimizes attenuation errors and delivers the best SNR, even at low peak-to-peak amplitudes of Vᵢₙ and Vₒᵤₜ.

*The image is for reference only. See product specification for details.