RF Micro Devices Inc.

7628 Thorndike Road, Greensboro, NC 27409-9421

DS131106

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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RFFM8505

Switch Control Logic Truth Table

Operating Mode

PA_EN

LNA_EN

C_RX

Standby

Low

Low

Low

Low

802.11a/n/ac TX High Power

High

Low

Low

Low

802.11a/n/ac TX Low Power

High

Low

Low

High

802.11a/n/ac RX Gain

Low

High

High

Low

802.11a/n/ac RX Bypass

Low

Low

High

Low

Notes:

•

PA_EN and TX switch control are tied together internally.

•

Evaluation Board Schematic