PCM5102 pcm2707 board - diyAudio
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Old 6th December 2011, 05:38 PM   #1
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Default PCM5102 pcm2707 board

Well I picked up a pair of M-Audio BX5A Deluxe on black Friday and wanted to get a dac made for them.

This is an alpha version of what I have planned. Eventually it will have power control for the speakers, multisource (src4392) inputs, balanced outputs (pcm1792), and a linear psu.

This board includes the following:
DC jack
USB B Jack
Dual 1/4" phono jacks (mono unbalanced)
reg102 to regulate down to 5v
dual TPS79133 to regulate down to 3.3v (one per IC)
PCM5102 with FILT control
PCM2707


Let me know what you think. I am going to be going over everything one more time then will be having some boards made.
Attached Images
File Type: jpg board.jpg (373.9 KB, 491 views)
Attached Files
File Type: pdf Schematic.pdf (79.5 KB, 235 views)
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Old 14th December 2011, 05:46 PM   #2
Ivatha is offline Ivatha  Japan
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Join Date: Nov 2011
Location: Saitama, Japan
Quote:
Originally Posted by BionicSniper View Post
Well I picked up a pair of M-Audio BX5A Deluxe on black Friday and wanted to get a dac made for them.

This is an alpha version of what I have planned. Eventually it will have power control for the speakers, multisource (src4392) inputs, balanced outputs (pcm1792), and a linear psu.

This board includes the following:
DC jack
USB B Jack
Dual 1/4" phono jacks (mono unbalanced)
reg102 to regulate down to 5v
dual TPS79133 to regulate down to 3.3v (one per IC)
PCM5102 with FILT control
PCM2707


Let me know what you think. I am going to be going over everything one more time then will be having some boards made.
Hi,
I think your board works well, since I made some board similar to your schematic.
I constructed my board in as below.

Input: mini-USB B (bus powered)
I/F : PCM2707 (USB to I2S)
Isolator : ISO7240M / ISO7640FM
DAC : PCM5102 (each 3.3V supplies(DVDD, AVDD, CPVDD) are generated by TPS79133+DCR010505 )
Buffer : BUF634 (+/-9V supply generated by TPS7A4901/3001+DCP020515)

This board currently works very well.

Best regards,
Ivatha
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File Type: jpg ISO5102PML.jpg (24.1 KB, 428 views)
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Old 20th October 2012, 04:59 AM   #3
dasi is offline dasi  Singapore
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Join Date: Oct 2012
Location: Singapore
Hi, I'm new here.

My group doing USB Audio Box. Can I know is it possible if we change the USB to the connection like the one use in iphone?
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Old 30th January 2013, 08:06 AM   #4
dzwer is offline dzwer  Bulgaria
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Location: Sofia
Ivatha, can you post the schematic of your USB DAC?
I think to make something familiar with dc/dc switching regulators followed by low noise linear regulators.
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