Description
The Intersil X9470 RF PA Bias Controller contains all of the necessary analog components to sense the PA drain current through an external sense resistor and automatically control the gate bias voltage of an LDMOS PA.
Features
- Programmable Bias Controller IC for Class A and AB LDMOS Power Amplifiers.
- Adaptive System on Chip Solution.
- Bias Current Calibration to better than ±4%
using Reference Trim DCP.
- Automatic Bias Point Tracking and Calibration.
- IDQ Sensing and Tracking.
- Programmable Instrumentation Amplifier to
Scale Wide Range of IDQ.
- Programmable Gate Bias Driver.
- All Programmable settings are Nonvolatile.
- All Settings Recalled at Powe.
X9470-Renesas.pdf
