RCA Audio Jacks
The Digilent PmodCON4 allows users to act as a transceiver with two RCA audio jacks.
Functional Description
The PmodCON4 is able to route any GPIO based audio signal from one of its four input pins (pins 1 through 4 on the 1×6 pin header) to either one of the RCA audio jacks via the jumper block present on each of the inputs.
Interfacing with the Pmod
The PmodCON4 is able to both receive and transmit audio (or other) signals to one of the two RCA jacks. However, only one input/output pin can be attached to an RCA audio jack at a time. If two or more are tied to the same jack, there is a chance that one output will be at a high voltage and the other output at a low voltage, effectively shorting those two pins and potentially damaging the system board.
Physical Dimensions
The pins on the pin header are spaced 100 mil apart. The PCB is 1.10 inches long on the sides parallel to the pins on the pin header and 0.8 inches long on the sides perpendicular to the pin header.