The TDP158 can be designed into many different applications. In all the applications there are certain requirements for the system to work properly. Two voltage rails are required to support the lowest power consumption possible. The OE pin must have a 0.1-µF capacitor to ground. This pin can be driven by a processor but the pin needs to change states after the voltage rails have stabilized. Using the I²C is the best way to configure the device, but pin strapping is also provided as I²C, which is not available in all cases. As sources may have many different naming conventions, it is necessary to confirm that the link between the source and the TDP158 are correctly mapped. A swap function is provided for the input pins in case signaling is reversed between source and the device. The following control pin values are based upon driving pins with a microcontroller; otherwise, the shown pullup/down configuration meets the device levels. The following table provides information on the expected values to perform properly.

For this design, use the parameters provided in Table 8-1.