RF5652 Datasheet, PDF (6/21 Pages) RF Micro Devices – 5.0V, 2.4GHz TO 2.7GHz HIGH POWER AMPLIFIER

RF5652
3. 3.Bypass capacitors should be used on the DC supply lines. The V_CC lines may be connected after the RF bypass and
decoupling capacitors to provide better isolation between each V_CC line.
RF5652 PA production and system calibration recommendation:
It’s highly recommended to follow the DC biasing step and RF power settings in the production calibration or test.
1. Connect the RF cables of input and output then connect to the proper equipment.
2. Apply V_CC, then V_REG as per the data sheet recommendations.
3. Set PA in TX mode.
4. Apply PENABLE = high.
5. Set RF input to the desired frequency and initial RF input power at -20dBm. This will insure the Power amplifier is in a linear
state and not over driven.
6. Sweep RF from low to high output power and take measurements at the rated output power.
7. Insure that the output power at turn on doesn’t saturate the power amplifier. The recommended output power should be
about 10dB to 20dB below the nominal input power. xxStart calibrating from low to high power in reasonable steps until the
rated power is reached then take the measurements.
CAUTION: If the input signal exceeds the maximum rated input power specifications, the RF5652 could be permanently dam-
aged.
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