Tool/software:
I have the following connection, 2 line in source and 1 headphone output.
Both Amplifiers can be programmed correctly, register Write/Read correctly. (using a mux to switch I2C connection to either IC)
2 conditions;
- Both amplifiers are enabled
- either one of the amplifiers is enabled
I2C command send:
- set different volume level
- amplifier is enabled and unmute (reg1 set to 11000000b, reg2 set to 00XXXXXXb)
- amplifier's output is HiZ when in disabled mode (reg1 set to 00000000b, reg3 set to 00000011b)
Problem encountered:
- There is no output from the HP out.
- HP out show a 6ohm reference to GND (it shows HiZ, when both amplifiers are set to HiZ)