The AVPro 5002B device is an audio/video switching IC that supports an input/output port, an input only port, and an output only port. The device includes multiplexers that allow the inputs to be routed to the outputs in various configurations. Additional outputs are provided to drive an external RF modulator. The video outputs of the multiplexers are buffered to drive 137ohm loads. The audio outputs are buffered to provide 2 Vrms output into 600 ohms. The 5002B has features optimized for BSkyB satellite receiver applications, but it can also be used in other applications that require control of multiple audio and video sources.