User's Manual

APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC5823
User / Operational Manual
Functional Description / Operation of Modules (Draft)
EXHIBIT D1-6
The Power Amplifier is comprised of six internal modules. These are described briefly in the following paragraphs.
1. The Core Board provides the following functionality:
- Routes DC to the Converter and Driver Boards
- Routes RF to the Driver Board
- Provides gain and FB power control
- Provides for diagnostic sensors
- Provides for intermediate voltages used by itself and other modules in the PA
- Provides the PA’s digital interface to the rest of the Base Radio
- Provides for cooling measures control
- Provides for control of subordinate modules
2. The Power Converter Board provides the following functionality:
- Provides 29 Volts DC and an intermediate voltage to the Distribution Board
3. The Driver Amplifier Board provides the following functionality:
- Provides the first RF gain stage of the PA
- Provides supporting bias circuits for the Driver Amplifier
4. The Final Amplifier Board provides the following functionality:
- Provides the second RF gain stage of the PA (parallel stage)
- Provides supporting bias circuits for the Final Amplifier
- Provides for RF power splitting
- Provides for RF power combining
- Provides diagnostics
5. The Distribution Board provides the following functionality:
- Provides for RF routing from the Driver Amplifier to the Final Amplifier
- Provides for RF routing from the Final Amplifier to the Output Module
- Provides for DC power routing from the Core Board to the Output Module
- Provides for DC power routing from the Power Converter Board to the Final Amplifier
- Provides for Forward and Reverse Power routing from the Output Module to the Core Board
- Provides for feedback power coupling to the Core Board
- Routes module control from the Core Board to the Final Module
- Routes diagnostics from the Final Module to the Core Board
6. The Output Module provides the following functionality:
- Provides output isolation to the PA
- Provides for harmonic attenuation
- Provides for forward and reverse power detection
Power Supply Module Overview
The power supply module operates from either an AC or DC input and provides the DC operating voltages for the
other Base Radio modules. These modules are sometimes also referred to as field replaceable units (FRU).
When operating from an AC source (90 to 264 VAC, 47 to 63 Hz), the supply generates two DC output voltages of
28.94 Volts with reference to output ground. The power supply automatically adjusts to AC input ranges and
supplies a steady output. In AC mode, the power supply contains a separate battery charger which can be used to
maintain the charge on a 48 Volt DC nominal system, positive or negative ground (if installed).