RFFM8528 Datasheet, PDF (10/10 Pages) RF Micro Devices – WiFi Front End Module 5180MHz to 5825MHz

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^st and 2^nd stage of the PA. See applications schematic for biasing and bypassing
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.
Control voltage for the LNA. When this pin is set to a Low logic state, the Bypass Mode is enabled. Optional
16
LNA_EN
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.
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or [e-mail].
DS140731
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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