Which component in a digital set-top box provides signal to various common interfaces including HDMI?

The digital processor in a set-top box plays a crucial role in managing and processing the incoming signals from various sources. It is responsible for decoding the audio and video streams that are received, which can then be sent out to various outputs, including HDMI (High-Definition Multimedia Interface).

The digital processor interprets the signals and acts as a communication hub, ensuring that the processed data is correctly formatted and transmitted to the appropriate output interfaces. This includes handling the processing of different resolutions and formats to match the capabilities of the connected display device via HDMI.

While other components like the tuner may be involved in retrieving the broadcast signal and the power supply ensures that all components function, it is the digital processor that ultimately manages the output to interfaces such as HDMI. Therefore, its role is essential for delivering a seamless viewing experience by ensuring that the digital signals are appropriately processed and presented to the user.