RF Micro Devices Inc.

7628 Thorndike Road, Greensboro, NC 27409-9421

DS140226

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.

5 of 9

RFFM4501F

PRELIMINARY

Applications Schematic 3.0V-4.2V Operation

Pdet

C_RX

1uF

LNA_EN

ANT

TX

RX

PA_EN

Vdd

0.1uF

VCC

3

1

12

2

13

11

10

9

8

7

6

5

4

14

15

16

4.7uF