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Using TLV320DAC3203EVM-K connected to the USB-MODEVM, I can setup the device using I2C
P12-20 SDA
P12-18 Ground
P12-16 SCL
and it functions correctly. If I disconnect the USB-MODEVM and add the connections as follows:
P23-3 +5v
P22-17 MCLK (19.2Mhz)
It will not respond to I2C queries. Do I need different switch settings, jumpers, or other signals?
Hi Charles,
You need to completely power the device, this includes IOVDD, AVDD and DVDD.
Please try by powering 1.8V and 3.3V rails on P23 as well (bottom center header).
Best regards,
-Ivan Salazar
Applications Engineer