Jitter spectrum measurements with a digital oscilloscope
February 21, 2022
Clockworks Signal Processing released an application note that measures jitter using a SIGLENT XE series of oscilloscopes. The basic idea is simple enough – measure the clock edges and see if they are all exactly evenly spaced or if they change (jitter) over time. A non-uniform clock fed to an ADC or DAC will produce … Continued
Oscilloscope Feature and Options Table
January 11, 2022
SIGLENT has a number of oscilloscopes to help fit your application needs and budget. Here is a table of features and options of our most powerful oscilloscopes to help decide what is best for you. S – Standard, included O – Optional (1) – Bode requires a SIGLENT SAG, SDG, or internal function generator to … Continued
Power Supply Design: Load Step Response with a SIGLENT DC Electronic Load
April 3, 2020
Building a power supply that can handle various loads without oscillating can be a challenge. Computational models and computer simulations can help get your design headed in the right direction, but physical testing is essential to proving the performance of your design. One method of quickly determining stability is to use a load step response. … Continued
Analyzing GSM Radio Protocol with a Siglent SDS2000X Plus Oscilloscope
March 10, 2020
Two SIGLENT users, Karel and Simon Sotek, email2@avanaconsulting.de recently took a SIGLENT SDS2354X Plus oscilloscope and investigated a GSM cell phone signal. Here is their report: We took a retired Siemens A36 cellphone to learn the capabilities of this new Siglent scope. Available documentation and medium-density PCB of the selected A36 made the signal probing … Continued
Programming Example: SDS Oscilloscope save a copy of a screen image via Python/PyVISA
February 26, 2020
Here is a brief code example written in Python 3.4 that uses PyVISA to pull a display image (screenshot) from a SIGLENT SDS oscilloscope via USB and save it to a drive on the controlling computer. NOTE: This program saves the picture/display image file to the E: drive, which may or may not exist on … Continued
Programming Example: Identification String (*IDN?) return with LabVIEW 2018
December 16, 2019
This LabVIEW VI (version 2018) provides a simple platform to begin creating LabVIEW programs. You can download the VI here: VISA_IDN.ZIP In this example, the user can: Select the connected instruments from the VISA Resource List drop down menu: NOTE: USB devices will automatically appear. For LAN connections, you will need to add the device. … Continued
Measuring Power Supply Control Loop Response with Bode Plot II
May 24, 2019
Introduction Stability is one of the most important characteristics in power supply design. Traditionally, stability measurements require expensive frequency response analyzers (FRA) which are not always available in a laboratory. SIGLENT has released Bode Plot Ⅱ features to the SIGLENT SDS1104X-E, SDS1204X-E, SDS2000X-E, SDS2000X Plus, SDS5000X, and SDS6000A series of oscilloscopes. When combined with a … Continued
Programming Example: SDS Oscilloscope screen image capture using Python over LAN
March 8, 2019
Here is a brief code example written in Python 3.4 that uses a socket to pull a display image (screenshot) from a SIGLENT SDS1000X-E scope via LAN and save it to the local drive of the controlling computer. NOTE: This program saves the picture/display image file in the same directory that the .py file is … Continued
Programming Example: Using VXI11 (LXI) and Python for LAN control without sockets
October 3, 2018
In an effort to meet the demands of remote monitoring and control, modern test instrumentation is leveraging more communications busses and than ever before. Each type of bus can also have numerous layers that can be utilized for specific advantages. The VXI bus and subsequent software drivers form a convenient software API that can make remote control … Continued
Bode Plot of a filter using an oscilloscope and function generator
September 12, 2018
A Bode plot is a method of graphically displaying the frequency response of a system or device-under-test (DUT). Commonly, the magnitude and phase response of the device are plotted with respect to frequency using a shared horizontal frequency axis as shown in the example below: By showing both the magnitude and phase information on … Continued