RF Micro Devices Inc.

7628 Thorndike Road, Greensboro, NC 27409-9421

DS131204

For sales or technical support, contact RFMD at +1.336.678.5570 or customerservice@rfmd.com.

The information in this publication is believed to be accurate. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents or other rights of

third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended

application circuitry and specifications at any time without prior notice.

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RFHA3942

Bias Instruction for RFHA3942 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 48V to VD.

5.

6.

Turn on the RF input.