4

R

C>F

R

F>F

R

C>F!

R

F>F!

Backplane

Power

Source

V

!

Time

V

!

+

_

I

!

Time

I

!

C

@!

Load3

Card





Using the IXHQ100 active filter minimizes the number of extra de-coupling capacitors. This improves

noise immunity of the circuit board. Additionaly, low output impedance of the filter also improves the

performance of noise cancellation on power lines. An extra advantage of using the IXHQ100 over capaci-

tors is the amount of space one can save. Figure 6 gives an example of cross talk noise cancellation by the

IXHQ100 and an comparison of the size difference between an IXHQ100 chip and a capacitor (to scale).

IXHQ 100PI

IXHQ 100SI

Figure 5