pcm63pk in piggy back mode.

[rfbrw]

Originally posted by carlosfm


Let the guy play, it's fun.
He will eventually make a revolutionaty design with a pre-historic chip...

Just the thing to go with KBK's revolutionary clock, I suppose.

[ljordan]

Do you think this stacking would work as well with a more modern DAC with voltage out?
See:
tpa6120a2 headphone amplifier
I am so pleased with the sound now.
Its an akm4383 DAC.
I would try a 2-4k matched resis. on each v output?
Then connect all the other pins together?
What do you think?

Lewis

[jdunham]

rudi

What type of I/V does you DAC use? Presumably if it was passive, you'd have to change the resistor value?

Regards,

Jonathan

[ljordan]

Differential voltage out (ala Crystal). An AKM4383 dac in a Sony dvp-ns900v.

Lewis

[rudi]

Originally posted by jdunham
rudi

What type of I/V does you DAC use? Presumably if it was passive, you'd have to change the resistor value?

Regards,

Jonathan

Hi Jonathan.

I am still using the standard passive onboard I/V and i haven't changed anything else, just added the chips

[ljordan]

fumihiko:
What do you think about stacking a DAC like akm with diff. voltage out?

Lewis

[fumihiko]

What do you think about stacking a DAC like akm with diff. voltage out?

There is an effect in making DELTA SIGMA DAC parallel.
The voltage output can be easily summing up by the resistance.

if 4 paralling up voltage output DA chips
load-resistance in 1/4 of the specified value
To protect, it makes a low-resistance (47ohms to 100ohms)series in each DAC chips.
summing point is a load-resistance
a loss by the resistance but the effect which depends in parallel exceeds.


it's my latest project, 4paralled CS4340 with resistance summing up
and 4paralled CS4331 test head

[ljordan]

So you you think the stacking of the single ended cs chips will work?
I don't see a pdf on there website for the 4330.

Here is what I am trying to stack:
3 images, from the akm4383pdf

first one:

[ljordan]

second: pinouts

[ljordan]

third:
pin names