Shematics needed for brand new SAA7210+SAA7220+TDA154... stand-alone nonos dac

[iklari14]

Hi all,

I desperately want to build a stand-alone nonos dac based on brand new Philips chipset SAA7210+SAA7220+TDA154... with coaxial and/or optical input.

So far, I am pretty determine about circuits regarding TDA1541 or TDA1543 (circuits drown by sig. Giorgio Pozzoli from www.tnt-audio.com), but don't know almost anything about topology, sorrounding components and power supply necessary for SAA7210 and SAA7220.

All I have for SAA7210/7220 are some sort of datasheet, circuit fragments from Philips CD960 and Revox b226 (not very clear) and cut/remove 3 wire tweak for nos operation.

Help from digital masters like Guido Tent, Kuei Yang Wang, Jean-Paul, Elso Kwak, Peter Daniel and many others will be wellcome!

Regards, Ivo

 

[jean-paul]

I desperately want to build a stand-alone nonos dac based on brand new Philips chipset SAA7210+SAA7220+TDA154... with coaxial and/or optical input.

You only need a CS8412 and the TDA1541 or TDA1543 really for building a non os DAC. There are several schematics out there how to implement two inputs ( optical and coax SPDIF ).

The SAA7220 is needed when you want to build an 4 fs OS DAC !

Please Google on "non oversampling DAC" and do a Search here, you'll find more than you need to make it a successful project.

For example:

http://www.geocities.com/rjm003.geo/rjmaudio/diy_dac.html

or:

http://www.ndh.net/home/kboehm/T-DAC-P1.htm

Be careful with this one as I think there are small errors in the CS8412 modes. Not enough time to check now.

BTW I am by no means a digital master. Just a hobbyist with a twist 😉

 

[guido]

SAA7210 is a decoder to decode the serial bitstream from a cd to the i2s format. It is used in a cd player and has no purpose in a stand-alone dac.

Guido