I'm going to be building a EZDAC V1.5 and there are no pads to connect a "Lock" LED on the PCB. I downloaded the CS8416 datasheet to see if I could figure out what pin to use for either a hi (3.3v) output or a (Low) AGRD to tie to a LED. After looking at the datasheet I'm more confused than I was before. The CS8416 will be used in "hardware" mode. Any help is appreciated. Here is a link to the schematics:
http://i122.photobucket.com/albums/o246/ezkcdude/schematics_v1p5.png
http://i122.photobucket.com/albums/o246/ezkcdude/schematics_v1p5.png
When a signal is locked, pin 14 goes low. So you basically connect a small current limiting resistor to pin 14, connect the other end to an LED and connect the other end of the LED to the 3.3V supply. For a red (1.8V) LED at 5mA, this means 300 ohms.
For the more adventurous, pin 14 can control a transistor. See here: http://www.twistedpearaudio.com/docs/digital/cs8416mux_schematic.pdf
In Evan's setup, the 47K resistor to ground (R11) can (should?) stay where it is. The TP version doesn't have this, so you'll have to ask them about it.
For the more adventurous, pin 14 can control a transistor. See here: http://www.twistedpearaudio.com/docs/digital/cs8416mux_schematic.pdf
In Evan's setup, the 47K resistor to ground (R11) can (should?) stay where it is. The TP version doesn't have this, so you'll have to ask them about it.
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