RFHA1003 Datasheet, PDF (8/11 Pages) RF Micro Devices – 30MHz TO 512MHz, 9W GaN WIDEBAND

RFHA1003
Bias Instruction for RFHA1003 Evaluation Board
ESD Sensitive Material. Please use proper ESD precautions when handling devices of evaluation board. Evaluation board
requires additional external fan cooling. Connect all supplies before powering evaluation board.
1. Connect RF cables at RFIN and RFOUT.
2. Connect ground to the ground supply terminal, and ensure that both the VG and VD grounds are also connected to this
ground terminal.
3. Apply -5V to VG.
4. Apply 28V to VD.
5. Increase V_G until drain current reaches 55mA or desired bias point.
6. Turn on the RF input.
Typical test data provided is measured to SMA connector reference plane, and include evaluation board / broadband bias
network mismatch and losses.
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