This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CDCM6208: I2C communication problem

Part Number: CDCM6208

Hi All

We program the cdcm6208 using the I2C (1V8 DVDD) communication mode, but very often we have NACK communication errors or errors reading programmed data (in this case the chips are not programmed correctly), We have two boards with different design and layout, with V1 and v2 device on both we experience the problem, may some one help us? Our communication I2c software is well proven with other devices and used in many of our projects, the timing seems correct with the correct rise/fall times, looking the EVM we see that the I2C is always connected to 3V3 rail but data sheet permits also the the 1v8 connections. there are some program sequence to be followed ?
Thanx
Maxx