TDA5240 - SmartLEWIS RX+ high sensitivity receiver family with digital baseband processing Sounds like a contradictory combination, yet this is what is more and more requested from receiver designs: Long range, low energy consumption and flexible adaptation to customer requirements. You think this requires high development effort and expensive additional components? Not with our high sensitivity, low-power receiver family SmartLEWIS RX+. Our TDA5240, TDA5235 and TDA5225 covering all requirements with a minimum of external components.