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Old 18th February 2011, 04:10 AM   #1
tessier is offline tessier  Canada
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Default Some questions about the WM8804

Hi

How do we connect the WM8804, for the hardware mode, and 16 bits I2S
output mode, and with an external 12 mhz clock ?

So which pin numbers would be connect where, like to the ground and to the DVDD, etc.. ?

I've read the data sheet but I'm not sure about those connections.

Thanx

Paul

Last edited by tessier; 18th February 2011 at 04:15 AM.
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Old 18th February 2011, 05:26 PM   #2
glt is offline glt  United States
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Here is one implementation: The S/PDIF Transceiver Module
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Old 18th February 2011, 06:37 PM   #3
tessier is offline tessier  Canada
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Hi

I've look at the web page you suggested but it's not easy to use it since I would use the WM8804 and SAA7220 with a TDA1541A

Here is the schematic I've found on the web but with no explanations, any comments about it ?

Thanx

Paul
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File Type: gif tda1541 saa7220-OS_NOS dac- wm8804.gif (15.0 KB, 140 views)
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Old 18th February 2011, 08:20 PM   #4
glt is offline glt  United States
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p 63 of the data sheet, the schematic from twistedpearaudio and the schematic above are very clear in the connections. All your questions are answered in the schematics.
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Old 20th February 2011, 05:52 PM   #5
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Hello

You can try to use maby these settings.

WM8804 with TDA1541A, the setings are for 16 bit I2S and in hardware modes.

But I am not sure abbouts the settings for the pin 5 and the pin 6

1--H (connect to the 3V3+ volt)
2--L (connect to the ground)
3--L (connect to the ground)
4--L (connect to the ground)
5--L (connect to the ground) ????
6-- ????
7--3V3+
8--AGND
9--
10-Xtal
11-Xtal (connect to a external 12 mhz clock)
12-Data output (connect to pin 3 of TDA1541A)
13-
14-BCLK output (connect to pin 2 and 4 of TDA1541A)
15-LRCK output (connect to pin 1 of TDA1541A)
16-
17-
18-DGND
19-3V3+
20-SPDIF input

Bye

Gaetan

Last edited by gaetan8888; 20th February 2011 at 06:01 PM.
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