Hi, friends, I have some doubts in the decision of the bandwidth of the LA (limiting amplifier). I've been told that 0.8 times of data speed is enough, a higher bandwidth will introduce more nosie. However, I also read in some books and paper that 1.0 to 1.2 times of data speed is the standard. So, which one is right? And are there any standards?
Operating from a single 3.3V supply, the MAX3274 features a 10mV input sensitivity while consuming less than 260mW. The limiting amplifier provides a bandwidth of 1.7GHz for 2Gbps operation and 890MHz for 1Gbps operation.
Dear IanP, do you mean that the requirement of bandwidth can vary according to the system arrangement? For example, with a 4-order Bessel filter, 0.8 times of data speed would also be enough, right?