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Part Number: PCM1861EVM
Can I use PCM1861 (HW Controlled device) without using GUI or USB-to-I2X interface board?
YES. PCM1861 is HW controlled device and you can use the device without GUI/Interface board ONLY if you will run the device in SLAVE mode.
Make sure to configure the part correctly by pulling MD6 and MD5 high according to pg. 5 in the datasheet. On the EVM, there are small zero ohm jumpers soldered onto the board near the header pins J7 that control the configuration of the part. In the stock congifuration, they pull the pins low. Make sure MD6 and MD5 are pulled high by soldering the resistors to the "H" 3.3V supply.
The default for the PCM1861EVM is slave mode with the inputs single ended on Vin2. The output will be on the optical outputs. This is basically "mode 0" described in the user’s guide. Be sure the Y0 and the jumper match Mode 0.
If you need to run the device in MASTER mode, then you will need to convert to Mode 1 where the PCM186x is the master and you will need the USB-I2X board so you can set up the PCM9211 on the EVM. This would require GUI as well.
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