How do a quick & dirty non os in a CD650

[Bernhard]

Hi,

for further spectrum analysis measurements I like to turn a CD650 (SAA7220) to non oversampling.

How can that be done as simple as possible without installing low jitter clock boards ?

Have you Searched ?

Oh yes !


Bernhard

[zygibajt]

How can that be done as simple as possible without installing low jitter clock boards ?

What has low jitter clock to do with non-os?

Please download the attachment with proper ,easy and quick procedure.I got them from somebody's website,but I don't remember the link.Sorry to the website owner,I hope he doesn't mind,it's just a raw text.

Bartek

[Elso Kwak]

Originally posted by Bernhard
Hi,

for further spectrum analysis measurements I like to turn a CD650 (SAA7220) to non oversampling.

How can that be done as simple as possible without installing low jitter clock boards ?



Oh yes !


Bernhard

Hi, Search for Marco Amboldi in Italy. Currently his website is down.

[Bernhard]

Originally posted by Elso Kwak

This one ?

http://members.xoom.virgilio.it/hi_fi/

I always get a unsupported html version error message

[Bernhard]

Originally posted by zygibajt


What has low jitter clock to do with non-os?

Takes more time...

Thanks for the file,

Bernhard

[Elso Kwak]

Originally posted by Bernhard


This one ?

http://members.xoom.virgilio.it/hi_fi/

I always get a unsupported html version error message

Yes, Or better:
http://xoomer.virgilio.it/hi_fi/com.htm

[TDA1540]

Bernhard,

after you have rerouted the signals(use resistors),you can mute the 7220 (audible improvement).There is also the resistor between 5V and bitclock(IIRC) to tinker with.


TDA

[Bernhard]

It was very easy, I used wires ,only 1cm to 1,5 cm long, crossing the old tracks.

Just the muting does not work, maybe because I disconnected the pin 23 of SAA7220 from what it was connected before.

Also I have no 7210 but N4804A inside.

Sounds good, don't know if better, but first it strongly depends on the dac chip and second the distortions are higher, compared to os.


Please see S1 thread for details / spectrum.

[Bernhard]

Originally posted by TDA1540
Bernhard,

after you have rerouted the signals(use resistors),you can mute the 7220 (audible improvement).There is also the resistor between 5V and bitclock(IIRC) to tinker with.


TDA

Why resistors ? What values ??

[Bernhard]

Originally posted by Elso Kwak


Yes, Or better:
http://xoomer.virgilio.it/hi_fi/com.htm

I have AOL8.0 and can not open that website