Add SPDIF on SAA7310/TDA1543 Combination

Tubeee · 20th June 2003, 08:31 AM

Hi there,

Who know how to wire out a SPDIF digital output from a SAA7310/TDA1543 combination cdp?
In about 1993s Philis announced many economic CDP like CD480, CD482... all these models equipped with CDM4 SAA7310/TDA1543 for cost down reason I guess (just before bit stream age).
The CDM4 SAA7310/TDA1543 doesn't like famous SAA7220 and not SPDIF dig out. Really like to know a easy way to layout a SPDIF out. Any one knows?

Tubeee

PRBS · 21st June 2003, 02:19 AM

Here is the datasheet of SAA7310.
http://home.kimo.com.tw/jhw1997/data/SAA7310.pdf

As I know, this decoder chip do not have digital out interface.

Guido Tent · 23rd June 2003, 07:47 PM

Quote:

Originally posted by Tubeee
Hi there,

Who know how to wire out a SPDIF digital output from a SAA7310/TDA1543 combination cdp?
In about 1993s Philis announced many economic CDP like CD480, CD482... all these models equipped with CDM4 SAA7310/TDA1543 for cost down reason I guess (just before bit stream age).
The CDM4 SAA7310/TDA1543 doesn't like famous SAA7220 and not SPDIF dig out. Really like to know a easy way to layout a SPDIF out. Any one knows?

Tubeee

Hi

May be this is of any use

http://www.algonet.se/~cyrano/unispdif.html

Guido

Fin · 13th January 2004, 05:36 AM

Hi Tubeee

If you are still interested, I have the schematics for an old Philips CDP using CDM4 and SAA7310 with a digital output. It shows which pins to connect etc.

Send me an email for my contact details.

Fin

Tubeee · 14th January 2004, 03:29 PM

Many thanks to you Fin,

The old philips cdp may connect the SAA7310 to PCF2705 for digital interface in and out I guess. However, PCF2705 is really hard to find, so I have sloved the problem by using CS8402. (may be adding a SAA7220 devil can do the same thing

)

It will be greatly appreaciated if you can mail me the related schematics.

Other issue:
While studying the old Phlips CD480/482 I found that the digital signal /I2S? is directly feeding from SAA7210 to TDA1543 without any digital filter. To my surprise, is this cheap CDP non-oversampling ??? If it is, why should we build non-oversampling DAC today? Just buy a second hand Philips CD480/482. it already used non-oversampling philosophy 10 years ago

Tubeee

triode_al · 19th July 2004, 03:15 PM

Tubeee,
I just tweaked a Philips CD 210 with SAA7310 and TDA1543 (tapped of the output almost directly) and the sound is oh so sweet t

. And I recognized now that indeed it must be zero oversampling indeed: a straight wire between the two components, nothing inbetween.

triode_al · 20th July 2004, 06:40 AM

Having looked at the machine it says on the front: 'four times oversampling', so evidently there is a chip in between. I'll look into this further.

guido · 20th July 2004, 03:57 PM

SAA7220

20th June 2003, 08:31 AM	#1
Tubeee diyAudio Member Join Date: Jun 2003	Add SPDIF on SAA7310/TDA1543 Combination Hi there, Who know how to wire out a SPDIF digital output from a SAA7310/TDA1543 combination cdp? In about 1993s Philis announced many economic CDP like CD480, CD482... all these models equipped with CDM4 SAA7310/TDA1543 for cost down reason I guess (just before bit stream age). The CDM4 SAA7310/TDA1543 doesn't like famous SAA7220 and not SPDIF dig out. Really like to know a easy way to layout a SPDIF out. Any one knows? Tubeee

13th January 2004, 05:36 AM	#4
Fin diyAudio Member Join Date: Dec 2003 Location: -	Digital out for SAA7310 Hi Tubeee If you are still interested, I have the schematics for an old Philips CDP using CDM4 and SAA7310 with a digital output. It shows which pins to connect etc. Send me an email for my contact details. Fin

20th July 2004, 03:57 PM	#8
guido diyAudio Member Join Date: Mar 2002 Location: diepe zuiden	SAA7220 __________________ GuidoB

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21st June 2003, 02:19 AM	#2
PRBS diyAudio Member Join Date: Mar 2002 Location: Taiwan	Here is the datasheet of SAA7310. http://home.kimo.com.tw/jhw1997/data/SAA7310.pdf As I know, this decoder chip do not have digital out interface.

14th January 2004, 03:29 PM	#5
Tubeee diyAudio Member Join Date: Jun 2003	Many thanks to you Fin, The old philips cdp may connect the SAA7310 to PCF2705 for digital interface in and out I guess. However, PCF2705 is really hard to find, so I have sloved the problem by using CS8402. (may be adding a SAA7220 devil can do the same thing ) It will be greatly appreaciated if you can mail me the related schematics. Other issue: While studying the old Phlips CD480/482 I found that the digital signal /I2S? is directly feeding from SAA7210 to TDA1543 without any digital filter. To my surprise, is this cheap CDP non-oversampling ??? If it is, why should we build non-oversampling DAC today? Just buy a second hand Philips CD480/482. it already used non-oversampling philosophy 10 years ago Tubeee

19th July 2004, 03:15 PM	#6
triode_al diyAudio Member Join Date: May 2004 Location: Westland Blog Entries: 1	Tubeee, I just tweaked a Philips CD 210 with SAA7310 and TDA1543 (tapped of the output almost directly) and the sound is oh so sweet t . And I recognized now that indeed it must be zero oversampling indeed: a straight wire between the two components, nothing inbetween.

20th July 2004, 06:40 AM	#7
triode_al diyAudio Member Join Date: May 2004 Location: Westland Blog Entries: 1	Having looked at the machine it says on the front: 'four times oversampling', so evidently there is a chip in between. I'll look into this further.

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