Haven't fiddled with my EZDac for a while, but was looking at the circuit designs the other day. The way I have it configured is as designed but using a balanced transmitter board to take the output to a balanced pre amp. Seems a bit convoluted to take the balanced current output of the PCM1798, convert it to a single ended signal then convert it back to a balanced signal. Anyone think of a better way to do this? Audio Note use transformers in their kit for the I/V circuitry but they only have a single ended output from their AD1865 DAC. Is there a similar solution for the balanced output of the PCM1798?
That's a bit too complex indeed, especially since the DAC already has balanced outputs.
If you leave the I/V resistors R23 and R24 in place and add another inverting opamp, you have a balanced output right there. Just ground the + input and split it by removing R26 and R27 and duplicate the circuit.
You could use a transformer with dual secondaries, and ground the center tap, then you'll have a balanced output as well.
If you leave the I/V resistors R23 and R24 in place and add another inverting opamp, you have a balanced output right there. Just ground the + input and split it by removing R26 and R27 and duplicate the circuit.
You could use a transformer with dual secondaries, and ground the center tap, then you'll have a balanced output as well.
R25 & R26 would be 100R and R28 and R34 would be 2k0. I was thinking of using LME49720-HA for the op amps.
What bitrate does the ezdac handle? I'm looking at getting a new usb to spif transport.
Can it do 24/96k or larger?
Can it do 24/96k or larger?
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