Configuration of TX Inputs for MAX2830

For DSBSC, you can tie your differential audio to the I pins, but you have to ensure that you meet the input common-mode voltage requirements of the part. The MAX2830 asks for 0.9V to 1.3V. This also means that you cannot directly tie Q to ground. You should instead provide a DC bias to the pins and decouple to ground.

The distortion I mention can come from DC offset voltage between the I and Q inputs, input bias mismatch, as well as internal offsets from the mixer and amplifiers.

This distortion will decrease carrier suppression. It may negatively affect the audio quality as well. As it is, the part can handle the signals that you will input on the TX pins, but you would need to test in lab to verify it works as you want it to.

For DSBSC, you can tie your differential audio to the I pins, but you have to ensure that you meet the input common-mode voltage requirements of the part. The MAX2830 asks for 0.9V to 1.3V. This also means that you cannot directly tie Q to ground. You should instead provide a DC bias to the pins and decouple to ground.

The distortion I mention can come from DC offset voltage between the I and Q inputs, input bias mismatch, as well as internal offsets from the mixer and amplifiers.

This distortion will decrease carrier suppression. It may negatively affect the audio quality as well. As it is, the part can handle the signals that you will input on the TX pins, but you would need to test in lab to verify it works as you want it to.