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I need a source of 3.3V voltage and I´m thinking in the VD output of the S/PDIF 4:1 MUX/Receiver. How much current could I draw from this?
Thanks
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The Vreg is rated at 150mA.
The CS8416 draws ~23mA at 192kHz. The LED draws another 7-8mA, and the reset circuit another couple mA. Giving it plenty of safety headroom, say 50mA, you can safely draw up to about 100mA from the switch header, but be aware of the possibility of injecting noise into the digital stages of the receiver.
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Rank: Member
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Joined: 4/7/2009(UTC) Posts: 19 Location: Spain Thanks: 1 times
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Thanks Brian.
I´ll use the 3.3V switch header to feed the supply voltage (Vcc) of several isolators (two ISO7220 and a IL715 isolator). Only one side, the other side go to an Arduino controller. I think it should not inject too much noise in the receiver. Please advise if you think it could be a bad idea.
I´ll use the ISO7220s to isolate the S/PDIF 4:1 MUX/Receiver and other mux from the Arduino, and the IL715 to isolate an Amanero USB adapter from the Buffalos.
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