Magnetoresistive asymmetry compensation

A method comprising:

• receiving an analog signal at a continuous-time front end (CTFE) circuit;
• performing, via the CTFE circuit, first magnetoresistive asymmetry (MRA) compensation on the analog signal to adjust a dynamic range of the analog signal based on an input range of an analog-to-digital converter (ADC), including:
• applying a fixed value for the first MRA compensation, the fixed value selected to cancel a majority of MRA influence prior to providing the analog signal to the ADC;
• converting the analog signal to a digital sample sequence via the ADC;
• and
• performing, via a digital MRA compensation circuit, second MRA compensation to correct residual MRA in the digital sample sequence, including:
• correcting, via the digital MRA compensation circuit, a residual MRA influence remaining after the first MRA compensation.

A memory device storing instructions that, when executed, cause a processor to perform a method comprising:

• receiving an analog signal at a continuous-time front end (CTFE) circuit;
• performing, via the CTFE circuit, first magnetoresistive asymmetry (MRA) compensation on the analog signal to adjust a dynamic range of the analog signal based on an input range of an analog-to-digital converter (ADC);
• converting the analog signal to a digital sample sequence via the ADC;
• performing, via a digital MRA compensation circuit, second MRA compensation to correct residual MRA in the digital sample sequence;
• receiving, via a digital backend (DBE) circuit, an MRA-compensated digital sample sequence from the digital MRA compensation circuit;
• and
• processing, via the DBE circuit, the MRA-compensated digital sample sequence to determine a sequence of user bits corresponding to the analog signal.