Calculating the numbers from the table we get about 7.6 ma if the channels are summed for double mono.
I am going straight into Ma12070 amp modules skipping the input Opamps.
Analog input is indicated as up to 6v. No mention if it's rms or p to p.
Analog input is indicated as up to 6v. No mention if it's rms or p to p.
If the output voltage is insufficient to drive your output stage you can increase the value of R2 to 1K.
Today, the last two serial regulators in the DAC were replaced, two ADP7118 for DIR9001 were disconnected and Walt Jung shunt regulators were connected instead. These are also the first such regulators for 3.3V.
I am very satisfied with the result, which is only a confirmation of the simulation in LTspice, where the difference between these regulators is clearly visible. It's the same thing if I compare LT3042 or ADM7150 with this shunt regulator.
I am very satisfied with the result, which is only a confirmation of the simulation in LTspice, where the difference between these regulators is clearly visible. It's the same thing if I compare LT3042 or ADM7150 with this shunt regulator.
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Hello Grunf , I am also interested in the fashion of shunt regualtors , but for few milliohms differences between the series and shunt can we be sure it's an real improvement , and are the measurement stating so , by measurement I mean at the dac output , I haven't found anything about it , only subjective thoughts
is there a theorial and physical reason for such an sonic improvement
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is there a theorial and physical reason for such an sonic improvement
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Those milliohms differences are exactly in the HF area, above 100kHz.
https://audioxpress.com/article/shunt-or-not-looking-for-the-ultimate-audio-voltage-regulator
https://audioxpress.com/article/shunt-or-not-looking-for-the-ultimate-audio-voltage-regulator
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I see that these few milliohm are in that region , but how it can affect the sound , in case of lifepo4 battery supply for exemple ?
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@fabrice63, A shunt regulator makes no sense with batteries due to high losses.
For example; my shunt reg for 8 pieces of PCM1702 has almost 10W dissipation or the shunt for AD811 has 6W only because of higher voltages.
For example; my shunt reg for 8 pieces of PCM1702 has almost 10W dissipation or the shunt for AD811 has 6W only because of higher voltages.
Nice job Grunf,
I have two questions. Maybe you can answer these:
I have two questions. Maybe you can answer these:
- The R3 and R6, are they necessary or are they part of your own PSU design?
- For the AD1862 i only need to recalculate C1 and R2? You don't have the value's at hand, about Vrms 2.0v?
