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Old 7th February 2003, 07:02 AM   #1
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Default Tda1543a

hi! apparently, the tda1543a accepts japanese input format, as opposed to i2s of 1543. the digital decoder saa7345 of the marantz cd63 outputs japanese format (and not i2s), so wondering how shoudl i wire this together?

i can't seem to find any info on tda1543a. any datasheet or apps note will be much appreciated. thanks!

DonJuan
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Old 7th February 2003, 07:14 AM   #2
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Here you go!
http://www.semiconductors.philips.co...1543_CNV_2.pdf

/Hugo - digs them all up for you
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Old 7th February 2003, 07:33 AM   #3
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i have this datasheet. i'm looking for tda1543a not plain vanilla tda1543.

thanks anyway!

DonJuan
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Old 7th February 2003, 11:08 AM   #4
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Lightbulb TDA1543A

Hi DonJuan,
This problem with the A-version has been discussed here:
http://db.audioasylum.com/cgi/m.pl?f...3a&r=&session=
Hope this helps.
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Old 7th February 2003, 12:49 PM   #5
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Hi Elso,

thanks for the reply. I've read that thread before but it still doesn't answer what I need to know though.

anyone has more info on tda1543a? thanks.

DonJuan
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Old 7th February 2003, 02:02 PM   #6
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Lightbulb Question?

Quote:
Originally posted by DonJuan
Hi Elso,

thanks for the reply. I've read that thread before but it still doesn't answer what I need to know though.

anyone has more info on tda1543a? thanks.

DonJuan
Hi DonJuan,
If your question is how to wire it together my answer is just connect as the non-A version. I believe the pinout of the A-version is the same.
You have the pindesignation of the digital decoder SAA7345?


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Old 8th February 2003, 05:51 AM   #7
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Hi Elso,

mucho gracias for the fast replies.

I have schematics for the CD63 and have located the digital signals. I first thought these are I2S and wanted to hook up a TDA1543 directly but later was told that these are Japanese format, EIAJ. Thus, the 1543 is ruled out.

Couldn't find any info on what the EIAJ format looks like, nor how to convert EIAJ to I2S. But I recall somewhere, some time ago that TDA1543A accepts "Japanese input format". Not sure whether this is THE format as being output from SAA7345. Hence my queries.

Wiring should be the same as 1543 but would like to know more about 1543A and/or these different data formats before I start soldering.

Thanks!

DonJuan
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Old 8th February 2003, 08:00 AM   #8
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Hello DonJuan,

If you would have looked in the datasheet as seen here:

http://www.arky.ru/audio/sprav/datasheets/saa7345.pdf

you would have seen that the SAA7345 has a selectable I2S mode for DAC output. Please see page 12. So you can use TDA1543 if you want to.

Regards,

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Old 8th February 2003, 01:58 PM   #9
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Hi jean-paul,

Thanks for the reply.

It is to my understanding that the settings are done thru firmware. That is a problem for me as I intend to use the TDA1543A in my Marantz CD63. No intention of reprogramming the micro-controller!

DonJuan
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Old 8th February 2003, 02:25 PM   #10
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Mmm, I just looked in the datasheet and you're right. All I can say is that the TDA1543A works with a Sony CXD2551P digital filter.
A lot of cheaper cd players from some years ago had that combination. It is impossible to let it work with a CS8412 is all I know. Probably it will simply work when you connect it to the SAA chip. I guess it is a case of trial-and-error. Dangerous theory, I know

But why do you want to use it in a CD63 ? That player has a good DAC chip in it !?!? If you persist on using it for non os purposes maybe you can make an external DAC with a CS8412 and a TDA1543. Saves you the hassle and the risk of damaging the CD63. The PCB material used is not exactly rugged in these machines.
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