Dir1701 Muting when switch on/off light - diyAudio
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Old 9th April 2004, 08:23 PM   #1
azyx is offline azyx  Greece
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Default Dir1701 Muting when switch on/off light

Dir1701 Muting when switch on/off light and other electrical gear. I take spdif signal from sblive.
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Old 10th April 2004, 10:16 PM   #2
JaroMi is offline JaroMi  Poland
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it's bad design PLL's filter. I've got the same problems. Just read Crystal's design documents about suggested board layout, use best caps... traces short as possible...
Good luck
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Old 11th April 2004, 03:00 AM   #3
ojg is offline ojg
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Same thing is was happening on one of my prototypes. I believe it is related to EMI or interference on ground loops. If you post your schematic/layout we might be able to help some more.
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Old 11th April 2004, 10:28 PM   #4
JaroMi is offline JaroMi  Poland
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Crystal's AN159 document p.2nd-- recommended board layout... RC soldered almost "on pin" (0605)... PLL's ground and Vcc via R-C, reciever trafo+RS485... Now it's okay
Or maybe reference layout SLEU010A from Texas?
The same problems I was with PCM2702/2906...
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Old 13th April 2004, 11:59 AM   #5
azyx is offline azyx  Greece
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Thank you guys! I try to solve the problem now.
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