Low-pass to notch reconfigurable filter

A method for operating a reconfigurable filter, comprising:

• determining whether to operate the reconfigurable filter as a low-pass filter or a notch filter based on a scenario associated with a device including the reconfigurable filter;
• and
• controlling a set of switches of the reconfigurable filter to operate the reconfigurable filter as the low-pass filter or the notch filter based on the determination, wherein the reconfigurable filter includes:
• an amplifier;
• a first resistive element and a second resistive element coupled between a first terminal of the amplifier and an input of the reconfigurable filter;
• a first capacitive element coupled to a first node between the first resistive element and the second resistive element;
• a second capacitive element and a third capacitive element selectively coupled between the first terminal of the amplifier and the input of the reconfigurable filter;
• and
• a third resistive element selectively coupled between an output of the amplifier and a second node between the second capacitive element and the third capacitive element.

A wireless device, comprising:

• an antenna;
• and
• a receive chain coupled to the antenna and including a baseband filter (BBF), wherein the BBF includes a reconfigurable filter, the reconfigurable filter including:
• an amplifier;
• a first resistive element and a second resistive element coupled between a first terminal of the amplifier and an input of the reconfigurable filter;
• a first capacitive element coupled to a first node between the first resistive element and the second resistive element;
• a second capacitive element and a third capacitive element selectively coupled between the first terminal of the amplifier and the input of the reconfigurable filter;
• and
• a third resistive element selectively coupled between an output of the amplifier and a second node between the second capacitive element and the third capacitive element.