An ADSL POTS splitter includes low pass filter. The low pass filter
includes a first inductor portion in communication with the line
interface and a second inductor portion isolated from the line interface
via an isolation capacitor. In one embodiment, the first inductor portion
is characterized for non-saturation in conventional operating ranges. The
first non-isolated inductor portion has a respective DC saturation
current and the isolated inductor portion has a respective DC saturation
current. The DC saturation current of the first non-isolated inductor
portion is substantially greater than the DC saturation current of the
isolated inductor portion for achieving higher inductance in the isolated
inductor portion.