VCA8613 0.0Vpp output with 0.1Vpp 1.5V DC Offset AC coupled input signal at the pin with and without the Rs=10 present linking to the downstream transformer stage.
VCA8613 can be bypassed in the signal chain with the upstream and downstream signal chain working correctly.
i.e. OPA835 outputs 100mVpp for a 50mVpp input into the AC coupling.
Vcntrl = 0.8V to 2.0V, VLNA = 1.6V, VREF = 2.4V, VCM = 1.5V, VFIL = 1.0V
DVDD = AVDD = 3.0V
Guidance on what may be wrong with the schematic implementation would be greatly appreciated. See picture below.
The VREFB pin has been changed to match the datasheet recommendation and the behaviour of 0.0Vpp output with +1.5V output still persists.
