If there is a ground post near the V in and V out test points, you should not use a long ground lead. For an increasing number of users, oscilloscopes are the instruments of choice for carrying out PSRR measurements. If PSRR is better than 40dB, it is recommended to increase the TS output ripple voltage mVpp due to oscilloscope has lower sensitivity than network analyzer. This article describes measurement of PSRR using the capacitor coupling method. Together, this equipment forms the basis for measuring the ripple sensitivity of a timing IC. When using markers, the associated row of the result table is highlighted. Get Electronics Weekly every day Subscribe. Request a Quote.
Power Supply Rejection Ratio or Power Supply Ripple Rejection.
APx PSRR Measurement Utility Audio Precision
Introduction. In theory, measuring the power-supply-rejection ratio. (PSRR) is relatively simple. A variable-frequency signal modulates the power-supply input,.
LDO PSRR Measurement
This application note shows the detailed measurement steps for determining the PSRR of the MAXA/B using Bode from OMICRON.
Figure 2. Two different oscillators were subjected to the same test conditions as described above. Audio Precision. The PSRR is a crucial parameter when characterising circuit designs.
The setup includes a function generator providing power, an oscilloscope, a device under test DUTan amplifier, and a signal analyzer.
Instruments For Testing Your Innovations.
Power Supply Rejection Ratio Measurement (PSRR) Signal Integrity Journal
The PSRR is a crucial parameter when characterising circuit designs. The measurement results table provides detailed information about each measured point frequency, gain and phase shift. Figure 2 shows the LDO power supply rejection ratio measurement setup. Power supply ripple rejection test using oscilloscope is acceptable for spot- checking if network analyzer is not available.
Video: Psrr measure Power Supply Measurement Techniques Instructional Seminar - Vol 1