[4] : Low PA or LNA gain

This anomaly applies to IC Rev. Engineering B, build codes QDAA-FA0.

Symptoms

Gain is low or negative in PA or LNA after enabling the feature. The gain can normalize after some time.

Conditions

  • PA: When transitioning RX->PG->TX.
  • LNA: When transitioning TX->PG->RX.

Consequences

TX output power is low in the beginning of TX state or RX sensitivity is low in the beginning of RX state.

Workaround

None.