PSRR measurement of power supply chips

eric_wang

PSRR measurement of power supply chips [Copy link]

PSRR is widely used in power management chips (PMIC), covering the performance evaluation of devices or circuits including power regulators and amplifiers.

Especially in today's typical systems with processors (such as GPUs, SoCs, FPGAs), high-speed serial interfaces (such as SerDes, PCIe, USB), high-speed parallel data (such as DDR, LPDDR, GDDR) and multiple power supplies working simultaneously, which require stable power supply and high power interference suppression. The ripple noise on the power rail comes from many factors such as power switching noise and harmonics, digital signal crosstalk, clock coupling, etc. Since the system is very sensitive to signals, if the power supply's ability to suppress ripple noise is insufficient, it will directly lead to signal jitter, bit errors, affect system stability and reduce system efficiency.

All of this makes the ripple noise margin reserved for the power supply smaller and smaller, thus requiring high-precision power supply ripple noise rejection (PSRR) measurement . PSRR testing has been widely used in precision industry, automotive electronics, medical equipment and other industries. So how to measure PSRR? Come to the Tektronix live studio and let's talk about it.

- What is PSRR?

- PSRR application areas and its importance in actual circuit testing applications

(Precision industry, automotive electronics, medical equipment)

- Difficulties in testing PSRR

- Efficient test solution for PSRR

Live broadcast time: August 22 (Thursday) 14:30~15:30

>>Click here to make an appointment now<<