Digital filter circuit having a number of convolution sub-circuits

An electronic device, comprising:

• a digital filter circuit comprising a pre-adder circuit comprising a number of n pre-adder sub-circuits, wherein n is an integer greater than or equal to 2, a convolution circuit comprising a number of m convolution sub-circuits, wherein m is an integer, wherein each convolution sub-circuit is configured to multiply at least one signal with a matrix that corresponds to filter coefficients of the respective convolution sub-circuit, a post-adder circuit comprising a number of k post-adder sub-circuits, wherein k is an integer greater than or equal to 2,
• wherein the number m of convolution sub-circuits is greater than the number n of pre-adder sub-circuits of the pre-adder circuit, and
• wherein the number m of convolution sub-circuits is greater than the number k of post-adder sub-circuits of the post-adder circuit.