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PCM5102A DAC Decoder I2S connection
PCM5102A DAC Decoder I2S connection
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Old 14th January 2020, 09:01 PM   #1
02GF74 is offline 02GF74  United Kingdom
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Default PCM5102A DAC Decoder I2S connection

I have purchased one of these board, PCM5102A DAC Decoder I2S, with the intention to connect it to a SAA7345 which support Philips I2S data format.

Can anyone tell me where I can find the meaning of the pins. The board is shown below.
FLT
DMP
SCL
BCK
DIN - Data In?
LCK
FMT
XMT

The SAA7345 device has following outputs:
MISC general purpose DAC output (3-state)
DATA serial data output (3-state)
WCLK word clock output (3-state)
SCLK serial bit clock output (3-state)

I assume the two can be connected together but that may not be the case, without knowing what the pins on the board are I can't really tell.

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Old 14th January 2020, 10:44 PM   #2
rfbrw is offline rfbrw
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The meaning of the pins will be found in the PCM5102A datasheet.
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Old 15th January 2020, 01:12 AM   #3
Mark Tillotson is offline Mark Tillotson
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Join Date: May 2018
Location: Cambridge UK
BCK is bit clock, LCK is LR clock, DIN is indeed data in. Normally I2S signals are termed MCLK, BCLK, LRCLK and DIN / DOUT, but only had room to print 3 chars. See the datasheet for anything specific to the PCM5102A, and bear in mind they shortened the pin names.
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