Tektronix introduced the world’s first Mixed Domain Oscilloscope (MDO) that delivers the functionality of an oscilloscope and a spectrum analyzer in a single instrument to test signals in both time-domain and frequency-domains simultaneously. The new MDO4000 Mixed Domain Oscilloscope Series gives engineers the unique ability to capture time-correlated analog, digital and RF signals for a complete system view, helping them to rapidly solve complicated design issues.

Mixed-Domain Oscilloscope with Built-in Spectrum AnalyzerMore than 60 percent of oscilloscope users also use a spectrum analyzer to troubleshoot embedded system designs with integrated wireless functionality, requiring them to work in both the time and frequency domain. Traditionally, an engineer was either a mixed signal/digital engineer or an RF engineer. But with wireless becoming more commonplace, design engineers must often work in both domains. The MDO4000 Mixed Domain Oscilloscope Series is the first oscilloscope ever to integrate the functionality of a spectrum analyzer to provide a unique toolset which will save days or even weeks of debug time.

Application Examples for the Mixed Domain Oscilloscope

  • System-level debug of wireless-enabled designs
    • Debugging integration of common wireless modules below 6 GHz (WLAN, Bluetooth, Zigbee, etc.)
    • Debugging common ‘home grown’ amplitude, frequency, or phase modulated wireless communications
    • Wideband analysis of dual band transceivers.  For example, capturing both Zigbee at 900 MHz and Bluetooth at 2.4 GHz in a single acquisition.
  • Timing analysis for mixed domain designs
    • Observing spectrum changes over time during turn on of VCO/PLLs
    • Easily measure time to stability when turning on or off RF signals
    • Easily determine latencies from control logic signals or serial bus commands to resultant RF changes
  • Tracking down sources of noise or interference
    • Analyzing root cause of radiated or coupled emissions
    • Measuring switch-mode power supply effects on the rest of the system
    • Correlation with time domain signals enables root cause analysis of spurious noise sources