US Patent 7304689 Single chip tuner for multi receiver applications

Tuners are adapted to accept a received signal input and provide both a desired tuner output and the received signal as an output. Accordingly, a single tuner circuit, preferably an integrated circuit, may be cascaded to provide a multiple tuner configuration. Any number of such integrated circuit tuners may be cascaded together for a multiple tuner application. Alternative embodiments provide a multiple tuner adapter for cascading devices.