Hello,
Im a bit confused with the power-on/external reset function of this DAC. In my circuit im using CS8416 as the receiver and I have the RMCK of CS8416 driving the SCK of PCM1795. Now the datasheet of the DAC says that the initialization sequence requires 1024 system clocks and after that the DAC is in its default reset state.
From my understanding this pin is only needed to set the registers in the device to their default states after power-on and these default states can be programmed before.
Now the problem is that CS8416 wont be driving the SCK pin if its not receiving anything which means that I must use the external reset since there will be a delay between power-on and system clock activation (the datasheet mentions this).
So I think I need some kind of a circuit that will supply the clock to the SCK pin and pull the RST pin low and then quit after 1024 clock cycles. But since this pin will also be connected to the RMCK pin of CS8416 Im not sure if applying voltage to this pin will damage the CS8416.
Other idea is that I have a mcu which will set up all the register on power-on then I just dont use this pin.
I assume Im either overcomplicating this and theres a simple solution or Im just not understanding the datasheet.
Can somebody give me a better idea or correct me if Im wrong?
Im a bit confused with the power-on/external reset function of this DAC. In my circuit im using CS8416 as the receiver and I have the RMCK of CS8416 driving the SCK of PCM1795. Now the datasheet of the DAC says that the initialization sequence requires 1024 system clocks and after that the DAC is in its default reset state.
From my understanding this pin is only needed to set the registers in the device to their default states after power-on and these default states can be programmed before.
Now the problem is that CS8416 wont be driving the SCK pin if its not receiving anything which means that I must use the external reset since there will be a delay between power-on and system clock activation (the datasheet mentions this).
So I think I need some kind of a circuit that will supply the clock to the SCK pin and pull the RST pin low and then quit after 1024 clock cycles. But since this pin will also be connected to the RMCK pin of CS8416 Im not sure if applying voltage to this pin will damage the CS8416.
Other idea is that I have a mcu which will set up all the register on power-on then I just dont use this pin.
I assume Im either overcomplicating this and theres a simple solution or Im just not understanding the datasheet.
Can somebody give me a better idea or correct me if Im wrong?