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1300 Henley Court Pullman, WA 99163 509.334.6306 www.digilentinc.com PmodCON4™ Reference Manual Revised May 26, 2016 This manual applies to the PmodCON4 rev. B Overview The Digilent PmodCON4 allows users to act as a transceiver with two RCA audio jacks. Features include:       2 RCA audio jacks Receive and transmit audio signals Jumper blocks to easily adjust signal routing Small PCB size for flexible designs 1.1“ × 0.8” (2.8 cm × 2.0 cm) 6-pin Pmod connector with GPIO interface Follows Digilent Pmod Interface Specification Type 1 The PmodCON4. 1 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. 2 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. DOC#: 502-084 Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners. Page 1 of 2 PmodCON4™ Reference Manual Header J1 Pin Number 1 2 3 4 5 6 Jumper Headers Jumper Settings Description J2 The J2 RCA jack will receive this input J3 The J3 RCA jack will receive this input Description Input P1 Input P2 Input P3 Input P4 Ground Not Connected Table 1. Pin Descriptions as labeled on the Pmod. JP1 J2 J3 J1 Connector JP2 RCA Audio Jacks J2 J2 J3 JP3 J2 J3 J3 JP4 J2 J3 GND NC Figure 1. PmodCON4 circuit diagram. Since RCA jacks typically send or receive analog voltage signals, users can easily connect thePmodCON4 to either an ADC or DAC module such as the PmodAD5 or the PmodDA4. 3 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. Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners. Page 2 of 2