Code division multiple access system with dynamic histogram control

Circuits embodying the invention include a baseband amplifier to whose input is applied a baseband input signal (I or Q). The gain of the amplifier is controlled by sampling the output of the amplifier and supplying the sampled signals to a dynamic histogram control (DHC) circuit which includes a memory circuit for storing a histogram which contains a statistically expected response of the sampled baseband signal. The DHC circuit includes circuitry for comparing the sampled signals to the stored histogram for producing a gain control signal which is then used to control the gain of the amplifier. In some embodiments, the DHC circuit may also include circuitry for producing an offset adjustment signal to control the direct current (dc) level of the signal being sampled and hence its symmetry.