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Old 24th June 2005, 10:50 PM   #1
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Default Sm5840 Pcm63

Hay guys,

I have connect a pcm63 to a Sm5840 in my Philips cd930 and i get a lot of noise can someone help me?
i have a schematic of the cd930
http://www.vt52.com/ftp/semi/pcm63.pdf
http://www.alldatasheet.com/datashee...C/SM5840A.html

maarten
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Old 25th June 2005, 11:04 AM   #2
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Assuming all your connections are correct, you will need to match the output format of the SM5840A with the input format of the PCM63.
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Old 25th June 2005, 03:35 PM   #3
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can you please help me to do this?
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Old 25th June 2005, 05:45 PM   #4
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It would be easier with a schematic.
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Old 25th June 2005, 10:34 PM   #5
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schematic 1
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Old 25th June 2005, 10:39 PM   #6
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schematic 2
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Old 27th June 2005, 12:15 PM   #7
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The second diagram is not clear enough to enable me to make out the input settings for the SAA7350 and thus the output settings for the SM5840A but this can be worked around. How have you connected the SM5840A to the PCM63's and can you float the MCK, MDT and MLE pins?
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Old 23rd February 2006, 10:27 AM   #8
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Sorry for the slow reaction.
Here is the schematic 2.
What do you mean with float?

Thnx alot
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Old 23rd February 2006, 10:28 AM   #9
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schematic
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Old 23rd February 2006, 11:51 AM   #10
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The best option is to use a microcontroller to change the internal settings of the SM5840 to meet the needs of the PCM63. If you can program a microcontroller it is very easy. A few lines of code and you are done.
The other two possibilities are just plain nasty.
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