In this paper we present an US system simulation tool, capable to study how system performance is influenced by both electronic and acoustic design parameters by joining acoustic-side models with those of the transducer and front-end electronics. The implemented tool has been entirely implemented in Matalb and includes US-field, CMUT and receiver front-end models. In particular, in this work we focus on the reception chain of components and evaluate the accuracy and correct functioning of the Matlab model compared to a real electronic architecture. Results and electric simulations confirmed that our tool efficiently joins all the implemented models and is able to correctly simulate and process the received echo signals.