Neil Jarvis is an Applications Engineer at Rohde and Schwarz USA, Inc. and a co-author of The VNA Applications Handbook. He currently supports Microwave, Wireless and SI Technologies. He has a BA in Math from UCSB, BSEE from San Jose State University, MS from NPS in Systems Analysis, and an MBA from Pepperdine. Neil holds multiple patents.
Designers pushing the limits in their application can run into situations where the XO performance is inadequate for their next design due to the way it reacts to the noise and ripple in the power supply. To achieve optimal performance, they most likely will find they will need to do more than a simple datasheet evaluation to select their next XO. Read on for details on a PSNR test method to help select an optimal XO.