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Hi guys,
What will happen with the DAC's configuration registers when reset is applied after power on? In other words, are the internal DAC registers reconfigured by the on-board I2C micro-controller or the DAC will remain in the default mode after reset??
Thanks,
Mihai
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The registers would reset to defaults.
You would need to cycle the controller too if you wish custom configuration to happen again.
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Hi Russ,
How can I do that?
The problem is related with power lines stabilization. Do you put some delay in micro-controller at the beginning of the code? If yes, then how log is this delay?
I wanna put some reset IC which will hold the DAC in reset mode until all voltages are steady still
Kind regards,
Mihai
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I assume you are talking about a custom controller?
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no, I am talking about the BIII embedded controller
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What are you trying to achieve by keeping the dac in default mode for a while? |
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Automute when data is zero at the input of the DAC and no interruption in async mode when the DAC MCLK is an multiple of the incoming bit-rate.
I use the BIII with SDtrans384 in sync mode with a custom dual clock module and i have also a custom input mux board for spdif. When spdif is selected sometimes large pops come from the speakers. Resting the DAC solve this issue
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All you are doing is going back to the chip defaults when you reset the DAC.
You can achieve the same thing by just leaving all the switches in their default state.
Pay careful attention to how you are wiring the the source too.
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Oh one thing crucial to remember is that the DAC must have a master clock present to start up correctly. The on-board firmware needs the DAC to have an active master clock at start up. If you are not doing that you will need custom firmware that sets the registers only after it knows it has a good master clock. Edited by user Friday, February 8, 2013 3:32:49 PM(UTC)
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