An audio router board with volume control and buffered outputDesigned by Manuvr Breakouts in United States of America
Based on the ADG2128 analog crosspoint switch, the DS1881E for volume control, and the LME49726 as output buffers. Features: 12 input channels that are arbitrarily routable to any of 8 output chan...Read More…
Based on the ADG2128 analog crosspoint switch, the DS1881E for volume control, and the LME49726 as output buffers.
Any mixing effects between two input channels is accomplished as a simple resistance mix with the switch as the intermediary. The maximum current through a given channel must never exceed 1mA. The POT wipers are the weak-link. The resistance between two input channels connected to a common output channel is: - twice the switch connection resistance (typically a few hundred ohms at 5V), plus - twice the 330 ohm series resistance, plus - the values of the wipers in the circuit (or the wiper to VccA/2)
Input stage should be fed single-ended and biased by the VccA/2 pin for safety, as well as for zero-cross detection. Recommended circuits are in the documentation.
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Lakewood, CO, United States of America
Ships from United States of America.
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