4 of 10

RF5521

DS130715

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

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

Package Drawing

Top View

Note: Pads are NiPdAu plated.

Pin

Function

Description

1ANT

This is a common port (antenna). It is matched at 50

Ω.

2

C_RX

Receive mode control voltage. See switch truth table for proper level.

3

C_TX

Transmit mode control voltage. See switch truth table for proper level.

4TX IN

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

Ω.

5NC

No connect pin.

6

LNA_EN

This pin enables the LNA. A logic HIGH enables the LNA.

7RX_OUT

Receive port for 802.11 b/g band. Internally matched to 50

Ω. DC-block provided internally.

8VDD

Supply voltage to the LNA.

9BT

Ω.

10

C_BT

Bluetooth™ mode control voltage. See switch truth table for proper level.