RF Micro Devices Inc.

7628 Thorndike Road, Greensboro, NC 27409-9421

DS140731

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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RFFM8528

Pin Names and Descriptions

Pin

Name

Description

1

GND

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

2

RX

RF output port for the 802.11a

/n/ac LNA. This port is matched to 50Ω and DC blocked internally.

3

GND

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

4

VCC

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

components.

5

PDET

Power Detector voltage for the TX path. May need external series R/shunt C to adjust voltage level and to

filter RF noise.

6

PA_EN

Control voltage for the PA and TX switch. Optional method to enact Low Power Mode when placed in High

state at same time with LNA_EN in High state. See truth table for proper voltage settings.

7

GND

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

8

TX

RF input port for the 802.11a/n/ac PA. This port is

matched to 50Ω and DC blocked internally.

9

VMODE

High/Low Power mode control signal. VMODE can be low or left floating for nominal conditions (High Power

Mode.) Applying 2.8V or greater to this pin enables Low Power Mode

10

VCC

Supply voltage for the 1

components.

11

VCC

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

components.

12

GND

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

13

ANT

RF bidirectional antenna port matched to 50Ω. An external DC block is required.

14

GND

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

15

NC

No Connect. This pin is not connected internally. It can be left floating or connected to ground.

16

LNA_EN

Control voltage for the LNA. When this pin is set to a Low logic state, the Bypass Mode is enabled. Optional

method to enact Low Power Mode when placed in High state at same time with PA_EN in High state. See

truth table for proper voltage settings.

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.