Switched
Capacitor Filter Module:
This
module provides the user with an off-the-shelf Programmable Filter
module capable of a wide range of filtering applications, where
the desired cut-off frequency is either unknown by the user or
the user requires a filter that can be reconfigured and re-used
in a wide number of applications. By adjusting a single 11-turn
variable resistor and setting 3 jumpers, the user of this module
can select a cut-off frequency between 2kHz and 350kHz. The module
can operate from double or single sided supplies and accepts differential
or single-ended inputs.
Features
-
Single
11-turn variable resistor and jumpers set cut-off frequency.
-
External
clock input facility via jumpers.
-
10th
order, linear phase, root raised cosine, response.
-
Jumper
selectable single sided or dual supply options.
-
Operates
from 3V to ±5V
-
Over
300 kHz cut-off frequencies achievable on ±5v supplies
(Isupply <= 33mA).
-
Up
to 300 kHz cut-off frequency on single 5v supply (Isupply
<=22mA).
-
Up
to 150 kHz cut-off frequency on single 3v supply (Isupply
<=10mA).
-
DC
accurate, typical Vos(max) = 5mV.
-
Differential
or single-ended inputs.
-
Operating
Temperature range 0 to 70° C
