Matching the time constants makes the attenuation independent of frequency.
The frequency response is decided by special time constants.
Both have long time constants; what they do may take months or years to show results.
In case 4, after five time constants the function reaches a value less than 1% of its original.
This gain formula appears to show a simple two-pole response with two time constants.
To reach 90 percent of the final value takes about 2.3 time constants.
These time constants are one to two orders of magnitude greater than the shorter time constant.
One of the two time constants will be the longest; let it be τ.
Replay circuits in which two time constants are combined.
This condition can be achieved by appropriate choice of and time constants.