The SPT9406 is a single video line driver chip that takes a standard video chroma signal as an analog input and provides a buffered analog output for driving a 150 load (75 back-terminated cable). The standard video input signal (1 VP-P) is internally biased and amplified 6 dB using internal circuitry and feedback resistors to produce a 2 VP-P into an AC-coupled 150 load. (See the typical interface circuit diagram.)