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Old 10th April 2011, 03:21 PM   #31
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I think that I have to reverse the polarity of lytic C1, the schematic is wrong right?
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Old 11th April 2011, 12:40 PM   #32
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Please help
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Old 11th April 2011, 01:24 PM   #33
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Quote:
Originally Posted by merlin el mago View Post
I think that I have to reverse the polarity of lytic C1, the schematic is wrong right?
Quote:
Originally Posted by merlin el mago View Post
Please help
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Old 11th April 2011, 02:43 PM   #34
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Thank you ZM
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Old 14th April 2011, 03:20 PM   #35
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Can't reach 0 Vdc at the input of both channels: I have -0.001 Vdc in both channels, can I connect the I/V?
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Last edited by merlin el mago; 14th April 2011 at 03:40 PM.
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Old 14th April 2011, 03:58 PM   #36
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Now -0.0005 Vdc

Last edited by merlin el mago; 14th April 2011 at 04:20 PM.
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Old 14th April 2011, 04:25 PM   #37
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Hi,

Didn't check the datasheet of the chip for specs but if it wants 0 volts at it's output you're doing fine. the dac will have a compliance range for dc offset at it's output and your offset is very very low. but check again after connecting to the dac. check the datasheet of the dac for it's output compliance.

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Old 14th April 2011, 04:55 PM   #38
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It's a BB PCM1704
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Old 15th April 2011, 03:48 PM   #39
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I connected the I/V & don't sound, in order to check if I connected well all componentes could anybody tell me where to measure DC to know if the issue is in my I/V because I don't know if BB PCM1704 are operating well
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Old 15th April 2011, 09:34 PM   #40
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Please check the datasheet of the dac.

measure dc at the source of t1a/b and/or the output pins of the dac. should be the same.

How is it all wired up?: cdplayer/i2s signal -> reciever/dac -> i/v?

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