Dec 24, 2007 #1 S super Full Member level 2 Joined Aug 18, 2002 Messages 125 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,296 Activity points 904 Dear all: In CML divider or CS amplifier , load can be Res or MOS . Which one will sensitive suffer from power supply noise ? thanks .
Dear all: In CML divider or CS amplifier , load can be Res or MOS . Which one will sensitive suffer from power supply noise ? thanks .
Dec 27, 2007 #2 S suria3 Full Member level 5 Joined Mar 5, 2004 Messages 300 Helped 17 Reputation 34 Reaction score 5 Trophy points 1,298 Activity points 3,028 In CML driver, the load is 50ohm at each branch. So, resistor is the best choice for the impedance matching, but when it comes to noise effect, resistor does contribute to higher noise as the value is only 50ohm, noise= 4kT/R.
In CML driver, the load is 50ohm at each branch. So, resistor is the best choice for the impedance matching, but when it comes to noise effect, resistor does contribute to higher noise as the value is only 50ohm, noise= 4kT/R.
Dec 27, 2007 #3 S super Full Member level 2 Joined Aug 18, 2002 Messages 125 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,296 Activity points 904 thanks suria3 it's for noise issue..