Digital Power Management and Analysis Software - Enabling Power Rail Measurements
The Digital Power Management and Analysis (DPM) software option provides automated power rail measurements for the 5/6 Series MSO oscilloscopes. With the multiple FlexChannel® inputs, the next generation user interface of the 5/6 Series MSO enables the design engineers to measure and analyze ripple, overshoot/undershoot, power supply sequencing, amplitude, and timing measurements. You can simultaneously analyze multiple power rails using the power rail probes or passive probes.
The DPM software automatically generates reports that include measurements, test results, and plot images. This solution helps the design engineers meet their time-to-market needs.
- Ripple analysis computes the ripple on the power rails and ensures that the designs meet requirements.
- Transient analysis measures the overshoot/undershoot to determine the extent to which power rails vary from nominal values due to short-term events.
- Power sequence analysis enables power designers to ensure that the power rails reach the on or off states in the expected times.
- Multi-rail testing speeds design, validation, and testing.
- Compatible TPR1000/TPR4000 power rail probes enable low-noise, low-loading measurements with up to 60 V DC offset, with 1 GHz and 4 GHz versions.
- Programming interface commands are included for all the measurements, configurations, and results.
- Save reports of active power measurements, plots, and tables into MHT, PDF or CSV format.
The Digital Power Management and Analysis software transforms the Tektronix 5/6 Series MSO oscilloscopes into a debug and analysis tool to quickly measure and analyze the power rails. Power rail measurements helps the designers meet design requirements and achieve high power integrity in their designs. The DPM software automates measurements such as ripple analysis, overshoot and undershoot, and power supply sequencing to help accurately and quickly characterize power rails.
DPM software used with a 5/6 Series MSO Oscilloscope together with power rail probes forms a complete measurement system for power rail testing.
Especially for today's complex IC's power rails can have strict limitations on ripple. Automated ripple analysis speeds these critical measurements. You begin by entering the expected ripple frequency for each power rail. At a press of the Power Rail Preset button the software uses this information to optimize the oscilloscope settings for the best possible measurements.
Analyze multiple power rails at once to reduce test times during design and validation. You can also take advantage of the 5/6 series MSO Spectrum View capability to perform spectrum analysis on the ripple.
Engineers can analyze cycle-by-cycle by selecting a PWM clock (if available) and view peak-peak and RMS values for each ripple cycle. This gives statistics for all of the cycles within an acquisition.
The 5/6-DPM enables ripple measurements on multiple power rails simultaneously. The results badge, results table, and the waveform view give designers complete insight.
The 5/6-DPM enables simultaneous multi-rail testing. This ensures faster design, validation and test times.
5/6-DPM enables measurement of Ripple and Measurement of Ripple on ripple. Spectrum view capability enables designers to identify the source of ripple a very powerful capability for designers of power rails.
Power sequence analysis
Power sequence analysis automates turn-on-time and turn-off-time measurements. It enables the designers to measure the power sequencing of their power rails and ensure that they reach their turn-on and turn-off states within the required times. Automating these tests helps achieve consistent, accurate results under different load conditions.
Power sequence analysis enables Turn-on and Turn-off tests to be performed on multiple power rails simultaneously.
The 5/6-DPM enables multi rail power-on testing simultaneously.
To set up the test, you specify the nominal input and output voltages, a trigger level, and a Wait Time (duration). Pressing the Power Rail Preset button initiates an optimization process in which the software optimizes scale settings, record length, and sample rate for the best results. Arming the oscilloscope and power cycling your DUT initiates the measurement.
Turn-on and turn-off times are given in the results badge and indicated on the waveform with colored indicators. Results are also available in a table.
Power Rail Preset will setup the oscilloscope parameters to accommodate all rail wait times. The measurement computes the Turn ON/OFF regions which represents the time elapsed between the input and output(s) and are annotated with different color lines. The scalar values are displayed in the results badge. Users can compare and validate their design for wait times by observing the results table and look for any anomalies.
5/6-DPM enables multi rail power-off testing simultaneously.
Transient analysis includes overshoot and undershoot measurements. Measurements may be performed on multiple power rails simultaneously and automatically with a few simple steps.
A reference voltage is entered for each power rail before initiating the test. The overshoot measurement gives the difference between the maximum voltage and the reference voltage. The undershoot measurement gives the difference between the minimum voltage and the reference voltage.
This measurement may be performed for a single cycle within an acquisition, or over every cycle within an acquisition (Cycle Mode). You can synchronize cycles based on a power rail signal, or another signal in the system. Cycle-by-cycle measurements can be analyzed using statistics, histograms, or plots.
5/6-DPM makes comprehensive overshoot and undershoot measurements on multiple power rails simultaneously.
Data collection, archiving, and documentation necessary for the design and development process is very simple with the DPM software. You can easily generate the reports in MHT, PDF, or CSV formats and document the measurement results.
DPM software provides the ability to compile all the results of a test run into different report formats with pass/fail results for easy analysis.
Measurements and features
- Ripple analysis
- Measures Ripple on multiple power rails simultaneously. Based on the Oscilloscope and the power rail probes used, the Ripple values can be <10 mV ( MSO64) and >10 mV ( MSO5 series). Spectrum view enables to identify the source of Ripple. Allows Ripple frequency to be configured for each power rail. Allows bandwidth limit capability using the vertical menu of the Oscilloscope channels.
- Transient analysis
- Overshoot and Undershoot measurements enable the designers to measure the Power Rail specific Overshoot and Undershoot values. Multi Rail support speeds up the testing. Allows designers to enter the voltage levels and reference voltage levels for calculating the Overshoot and Undershoot. Allows bandwidth limit capability using the vertical menu of the Oscilloscope channels.
- Power sequence analysis
Turn-on and Turn-off times testing enables designers to find out the Turn-on or Turn-off times of all rails in one go. Allows designers to enter the capture time.
- MHT and PDF format, Data export to CSV format
- Degauss/Deskew (static)
- Automatic detection of probes, Auto Zero. User can deskew probes from the menus for each channel
- Source support
- Live analog signals, reference waveforms, and math waveforms