Converting a digital signal from a first sampling rate to a second sampling rate

A system for converting a first digital signal having a first sampling rate into a second digital signal having a second sampling rate that is different from the first sampling rate, the system comprising:

• an input circuit to receive the first digital signal at the first sampling rate;
• a fractional finite impulse response (FIR) circuit configured to shift the first digital signal by a value corresponding to coefficients of the FIR circuit, with the value being based on an integer value or a non-integer value;
• memory to store the coefficients for the FIR circuit;
• and
• processing circuitry to receive information corresponding to the second sampling rate, to obtain the value based on the information, to obtain the coefficients from the memory based on the value, and to provide the coefficients to the FIR circuit;
• wherein the FIR circuit is configured to convert the first digital signal to the second digital signal by shifting the first digital signal based on the value and by performing processing on the first digital signal as shifted based on the coefficients to convert the first digital signal into the second digital signal.