Power Amplifier (PA) Utility

RAIL PA Utility

This software component can optionally be enabled for boards to support PA configurations.

When using a Silicon Labs-developed board, the configuration options for this software component are set up automatically based on the selected board. When using a custom board, manually configure the configuration options.

Configuration Options

The following configuration options can be changed:

• Initial PA power
• PA ramp time
  • The PA ramp time is a hardware approximation aimed at being as close to the desired ramp time as possible without going over the specified time.
• Milli-volts provided to the PA supply pin (PA_VDD)
• 2.4 GHz PA selection (for applicable devices)
• Sub-1 GHz PA selection (for applicable devices)
• Header file containing custom PA curves
• Header file containing PA curve type types
• Enable/disable PA calibration

See these documents for in-depth explanations of how to configure and use the available PA features:

• AN1127: Power Amplifier Power Conversion Functions in RAIL 2.x