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Okto Research modules

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#101
The board looks really nice and the build is coming along 🙂
okto1.jpeg
 
#103
Hello.
Just making shure about i2s connections and stuff 🙂

Data 1-4, done.
mclk to Pulsar clock. Still waiting for the regulator so.... 😎
Solderpad to be shorted is jp1 ?
bclk to usb reciver, done.

That schould be it, right ?

If more gain is needed do you have a table for what resistance gives what result ?
The resitors in question have to be the 1k ones, right ?
 
#104
Hello dahlberg,

JP1 needs to be shorted to disable the on-board oscillator and JP2 (on the back side) to connect the Sabre's MCLK pin to the pin on the main connector.

Yes, the 1k resistors are the ones. The dependence is linear, so the value can be calculated.

Pavel
 
#107
dahlberg said:
There is a discrepancy in the manual at page 5 and 8 regarding the 15v connections. Could be confusing even though I belive that page 5 would be correct.
Click to expand...

Thanks for pointing that out. Page 5 is correct and page 8 wrong. We're going to fix that.

dahlberg said:
Lets say that I would like twice the amount of gain on two channels ( I have dipole subs that need some serious compensation) what would be the value of these resistors ?
Click to expand...

2k (or closest value you can get)

dahlberg said:
Are channel 1-2 the ones located closest to the the back of the board ?
Click to expand...
Closest to the data connector.

dahlberg said:
To enter ON: I should short gpio1 to ground, right ?
Click to expand...
Actually, newest firmware revision does that through the onboard MCU. Thus there is no need to have the jumper in place, while the signal from the MCU can be overridden. We also have to update the manual on that point.

Pavel
 
#108
Okto Research said:
Actually, newest firmware revision does that through the onboard MCU. Thus there is no need to have the jumper in place, while the signal from the MCU can be overridden. We also have to update the manual on that point.

Pavel
Click to expand...

So when will the "pwr" led be lit, all voltages are in place ? (no jumper yet) (clock still the onboard one)
 
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#112
GPIO1 ON/STANDBY:
When pulled high, DAC8 enters active state if all power supplies are at nominal levels.
Maximum voltage on this pin is 3.3V, use jumper to short this pin high if not in use.
Click to expand...

On this Picture you can see a jumper between pin1 (3.3V) and pin3 (GPIO1).
Is this what's ment with the text above ?

DSCF7999.jpg


I'm using the possibility with the Sabre volumecontrol as descibed in the connection diagram.
 
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