The IP4773CZ14 is a VGA or DVI-I interface intended to be connected between a video transmitter such as a PC graphics card and a VGA or DVI-I receiver, such as a PC monitor. The IP4773CZ14 has ESD protection for the DDC lines, ESD protection plus buffering for the h-sync and v-sync lines and high-level ESD protection diodes for the R, G, B video signal lines. The synchronizing signals are buffered by non-inverting buffers which can accept TTL-level input. The buffers convert TTL-level input to CMOS-level output which swings between VCC(SYNC) and GND. An external termination resistor can be added to achieve the desired termination, which is typically required for the h-sync and v-sync lines of the video interface. The IP4773CZ14 has a typical output resistance (RO) of 10 Ω.