RF Micro Devices Inc.

7628 Thorndike Road, Greensboro, NC 27409-9421

DS130930

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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RFFM8205

Pin Names and Descriptions

Pin

Name

Description

1

PDET

Power detector voltage for the TX path. May need external series R/shunt C to adjust voltage level and to filter RF noise.

2

GND

This pin is not connected internally and can be left floating or connected to ground.

3

VCC

Supply voltage for the output stage of the PA. See applications schematic for biasing and bypassing components.

4

VCC

Supply voltage for the first stage of the PA. See applications schematic for biasing and bypassing components.

5

TX

RF input port for the 802.11b/g/n PA. Input is matched to 50

Ω. This pin is DC blocked internally.

6

PA_EN

Bias voltage for the PA. This pin also controls the TX switch of the SP3T. See truth table for proper settings.

7

GND

This pin is not connected internally and can be left floating or connected to ground.

8

RX

RF output port for the 802.11b/g/n LNA. Port is matched to 50

Ω. This pin is DC blocked internally.

9

LNA_EN

Control voltage for the LNA. When this pin is set to a LOW logic state, the bypass mode is enabled.

10

VCC

Supply voltage for the LNA. See applications schematic for biasing and bypassing components.

11

BT

RF bidirectional port for Bluetooth®. Input is matched to 50

Ω. An external DC block is required.

12

GND

This pin is not connected internally and can be left floating or connected to ground.

13

C_BT

Bluetooth® switch control pin. See truth table for proper level.

14

C_RX

Receive switch control pin. See switch truth table for proper level.

15

GND

This pin is not connected internally and can be left floating or connected to ground.

16

ANT

RF bidirectional antenna port matched to 50

Ω. An external DC block is required.

Pkg Base

GND

Ground connection. The backside of the package should be connected to the ground plane through a short path, i.e., PCB

vias under the device are recommended.