I am working an upconveter by ADRF6755 using the samples ADI offered. Now everything seemed OK but
1) The output power is only -30dBm
2) The CR30 register has nothing effect on control the attenuator , whart ever value input.
I confirm the I2C operation is correct, because other register is functioning well by the same I2c operation. More over I can watch the timing by oscilloscope , it works perfectly.
Do you have any suggestion to solve my trouble?
the LOT ID of my samples is AH64462.7, date code is 1206,