The Designer's Guide Community Forum

The Designer's Guide Community Forum
https://designers-guide.org/forum/YaBB.pl
Design >> RF Design >> PowerSupply desing for RF board
https://designers-guide.org/forum/YaBB.pl?num=1380705279

Message started by phenning on Oct 2^nd, 2013, 2:14am

Title: PowerSupply desing for RF board
Post by phenning on Oct 2^nd, 2013, 2:14am

I have a RF board 900 -2.5GHz with 4 channels that run through LNA, demuxer another amplifiers and then ADC.

On the current board each of these devices has their own dedicated low noise LDO regulator. this set of regulators are reproduces 4 times.

Is this the best practice in terms of noise separation or could you get by with sharing a LDO across the 4 channels? and between devices?