We have used ADV7441 in one of our designs. We are unable to detect I2C address from ADV7441 .
Below are our observations,
- All the supply voltages to ADV7441 are coming properly.
- We are getting the clock input to ADV7441 properly.
- Voltage on the internal reference output pins are -
REFN - 0.708
REFP - 1.202
CML - 0.911
RFLOUT - 0.682
We were unable to find the nominal voltage on these pins from the datasheet . Are these values are correct ?
- We are using a I2C probe function which sends out I2C address from 0x00 to 0x7F and checking for acknowledgement from slaves. We are not getting acknowledgement for any of 8 different addresses of ADV7441.
How can we make sure that ADV7441 is up and working fine without I2C access ?