METHOD AND APPARATUS FOR CONCURRENTLY TRANSMITTING DIGITAL CONTROL SIGNAL AND ANALOG SIGNAL FROM SENDING CIRCUIT TO RECEIVING CIRCUIT

PROBLEM TO BE SOLVED: To accommodate the increase of the number of input and output signals in a System-in-a-Package (SiP). SOLUTION: An apparatus and method for simultaneously transmitting a digital control signal and an analog signal from a sending circuit to a receiving circuit are disclosed. An analog signal (e.g., a differential data signal) is received. A digital signal (e.g., a digital logic signal) is also received. The digital signal is then combined with the analog signal to generate an analog signal with an embedded digital signal. The analog signal with an embedded digital signal is then transmitted through a common communication link (e.g., a pair of conductors). The digital signal is then recovered from the analog signal with an embedded digital signal without affecting the recovery of the analog signal. COPYRIGHT: (C)2006,JPO&NCIPI