Method and system for all digital gain control

摘要: An analog/digital gain control device avoid some of the requirements associated with nature a closed-loop AGC circuits and which meets remaining without much difficulty uses an analog to digital conversion method that increases number effective ADC bits by compressing baseband input signal using logarithmic circuit. After compressed is converted into signal, anti-log process or look-up table (LUT) used expand back original linear scale. The word size output larger than due function. To reduce open loop normalization technique can be applied.