Abstract: A system and method for corner frequency compensation in a wireless receiver. A method comprises computing a corner frequency of a filter, and determining if the computed corner frequency is different from a desired corner frequency by less than a threshold. The method further comprises if the computed corner frequency differs from the desired corner frequency by more than the threshold, adjusting parameters of the filter to alter the corner frequency, and repeating the computing and the determining. The method additionally comprises if the computed corner frequency differs from the desired corner frequency by less than the threshold, leaving the parameters of the filter unchanged. The computing uses a measured phase response of the filter at a frequency outside of a passband of the filter.

Abstract: Predistortion methods and apparatus for transmitter linearization in a communication transceiver are disclosed.

Abstract: A system and method for tuning baseband filters in wireless transceivers. A method comprises coupling a radio frequency (RF) signal generated by the wireless transmitter at an input of a wireless receiver, the RF signal having a desired frequency, measuring a magnitude of the coupled RF signal at an output of an analog-to-digital converter at an output of an analog baseband filter, wherein the magnitude is measured at the desired frequency, and adjusting a corner frequency of the analog baseband filter in response to the determining that the measured magnitude differs from a specified value.

Abstract: One embodiment of the invention includes a mixed-signal filter. The mixed-signal filter comprises an analog signal path configured to process a first analog signal and an analog-to-digital converter (ADC) configured to convert the processed first analog signal to a digital signal. The mixed-signal filter also comprises a programmable digital feedback filter configured to filter the digital signal and a digital-to-analog converter (DAC) configured to convert the filtered digital signal to a second analog signal. The mixed-signal filter further comprises a signal combiner configured to combine an analog input signal of the mixed-signal filter and the second analog signal to generate the first analog signal.