RFFM8550 Datasheet, PDF (8/8 Pages) RF Micro Devices – 4.9GHz to 5.85GHz 802.11a/n/ac WiFi Switch + LNA Module

RFFM8550
Pin Names and Descriptions
Pin
Name
Description
1
2
3
4
5
6
7
8
Pkg Base
ANT
VRX
VTX
VDD
LNAEN
RX
N/C
TX
GND
RF bidirectional antenna port matched to 50Ω. An external DC block is required.
Receive switch control pin. See switch truth table for proper voltage level.
Control voltage for the TX switch. See truth table for proper voltage level.
Supply voltage for the LNA. See applications schematic for bypassing components.
Control voltage for the LNA. When this pin is set to a LOW logic state, the bypass mode is enabled.
RF output port for the 802.11a/n/ac LNA. This port is matched to 50Ω and DC blocked internally
This pin is not connected internally and can be left floating or connected to ground.
RF input port for the TX throw of the T/R switch. An external DC block is required
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.
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
DS150128
For sales or technical support, contact RFMD at +1.336.678.5570 or [e-mail].
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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