RECEIVER WITH CONTROLLABLE AMPLIFIER MEANS

摘要

In a receiver for digital symbols, an input signal received by a tuner (2) is passed via a SAW filter (4) and a controllable amplifier (8) to an input of a demodulator (10). The output signals (I, Q) of the demodulator (10) are passed via controllable amplifiers (16, 18) to analog to digital converters (22, 24). In order to avoid the use of a feedback signal from the digital part (14) of the receiver to the analog part (6) it is proposed to use first control means (12) for controlling the output signal of the demodulator (10) and second control means for controlling the output signal of the analog to digital converters (22, 24). An additional advantage is that both control means can be optimized for their respective environments.