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RFFM8500

DS120904

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

Pin

Function

Description

1GND

Ground connection.

2RX

RF output port for the 802.11a/n LNA. Input is matched to 50

 and DC block is provided.

3GND

Ground connection.

4VDD

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

5PDET

Power detector voltage for TX section. PDET voltage varies with output power. May need external capacitor

for noise decoupling.

6PA_EN

Control voltage for the PA and TX switch. See truth table for proper settings.

7NC

Not connected.

8TX

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

 and DC block is provided.

9NC

Not connected.

10

VCC

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

11

VCC

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

12

GND

Ground connection.

13

ANT

RF bidirectional antenna port matched to 50

and is DC blocked internally.

14

GND

Ground connection.

15

C_RX

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

16

LNA_EN

Control voltage for the LNA.

Pkg Base

GND

Ground connection.