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TekTips: Spectogram


Welcome to the TekTips series brought to you by DesignSpark and Tektronix. 

In our latest TekTip we explain how to use the Spectrogram feature on the Tektronix 3 Series Mixed Domain Oscilloscope.

Interested in more TekTips on the 3 Series Mixed Domain Oscilloscope? Click Here

Typical applications
  • Embedded design and IoT

    Discover and solve issues quickly by performing system level debug on mixed signal embedded systems including today's most common serial bus technologies with the 3 Series MDO and support for a broad set of common serial buses.

  • Power design

    Make reliable and repeatable voltage, current, and power measurements using automated power quality, switching loss, harmonics, ripple, modulation, and safe operating area measurements with the widest selection of power probes in an affordable solution.

  • Education

    Managing multiple instruments on a bench can be troublesome. The 3 Series MDO combines analog, digital, and RF measurements with a signal source in a single, small (5.9 in., 149 mm deep) instrument. The combination of a small instrument and high level of integration aids in the teaching of various electronics principles as well as in its usage for more sophisticated lab experiments. Full upgradeability enables adding functionality over time as needs change or budgets allow.

  • Manufacturing Test and Troubleshooting

    Size and space constraints can play havoc on a manufacturing floor. The 3 Series MDO minimizes rack or bench space by integrating multiple instruments into one small package. Integration reduces cost associated with utilizing multiple different instrument types in manufacturing test or troubleshooting stations.

  • Service Installation and Maintenance

    Having the right instruments when and where you need them is critical. The 3 Series MDO combines analog waveforms, digital logic, and spectrum analysis in a lightweight (11.7 lbs, 5.3 kg), portable package - making it the perfect choice where space is limited and flexibility is desired.

Available Now from RS Components:

RS Number

Global Description

Mfr Part Number


3-Series Mixed Domain Oscilloscope, 100M

MDO32 3-BW-100


3-Series Mixed Domain Oscilloscope, 200M

MDO32 3-BW-200


3-Series Mixed Domain Oscilloscope, 350M

MDO32 3-BW-350


3-Series Mixed Domain Oscilloscope, 500M

MDO32 3-BW-500


3-Series Mixed Domain Oscilloscope, 1GHZ

MDO32 3-BW-1000


3-Series Mixed Domain Oscilloscope, 100M

MDO34 3-BW-100


3-Series Mixed Domain Oscilloscope, 200M

MDO34 3-BW-200


3-Series Mixed Domain Oscilloscope, 400M

MDO34 3-BW-350


3-Series Mixed Domain Oscilloscope, 500M

MDO34 3-BW-500


3-Series Mixed Domain Oscilloscope, 1GHZ

MDO34 3-BW-1000

Key performance specifications
  • 2 and 4 analog channel models
  • 100 MHz, 200 MHz, 350 MHz, 500 MHz, 1 GHz bandwidth models
  • Bandwidth is upgradable (up to 1 GHz)
  • Up to 5 GS/s sample rate
  • 10 M record length on all channels
  • >280,000 wfm/s maximum waveform capture rate
  • Standard passive voltage probes with 3.9 pF capacitive loading and 250 MHz or 500 MHz analog bandwidth
  • Spectrum Analyzer (optional)
    • Frequency range: 9 kHz - 1 GHz or 3 GHz
    • Ultra-wide capture bandwidth up to 3 GHz
  • Arbitrary Function Generator (optional)
    • 13 predefined waveform types
    • 50 MHz waveform generation
    • 128 k arbitrary generator record length
    • 250 MS/s arbitrary generator sample rate
  • Digital Channels (optional)
    • 16 digital channels
    • 10 M record length on all channels
    • 121.2 ps timing resolution
  • Serial Bus Decode, Triggering and Search (optional)
    • Serial bus support for I2C, SPI, RS-232/422/485/UART, USB 2.0, CAN, CAN FD, LIN, FlexRay, MIL-STD-1553, ARINC429, and Audio standards
  • Digital Voltmeter / Frequency Counter (Free with product registration)
    • 4-digit DC, AC RMS, and DC+AC RMS voltage measurements
    • 5-digit frequency measurements


TekTips is a series of short hints and tips brought to you by Tektronix in partnership with DesignSpark.

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