
7
5
8
2
4
3
1
6
VRF 2
RF3
RF 1
VRF 3GND
ANT
RF2
VRF 1
RF5500
11b/g/n
WLAN SP3T
Switch
Features
SP3T Switch
Switch Control Voltage 2.1to
5V (Typical 3.0V)
Low Insertion Loss 0.8dB
Applications
EEE802.11b/g/n WLAN
Applications
WiFi/Bluetooth
Combination Devices
®
RF5500
11B/G/N WLAN SP3T SWITCH
Package: DFN, 8-Pin, 2.0mm x2.0mm x0.6mm
Functional Block Diagram
Product Description
The RF5500 is a SP3T switch designed for WLAN and WiFi/Bluetooth® applications
in the 2.4GHz to 2.5GHz ISM band. The RF5500 is capable of switching between
WLAN RX, WLAN TX, and Bluetooth
placed in WLAN and Bluetooth
increase in insertion loss. The RF5500 is provided in a DFN 8-pin
2mmx2mm x0.6mm Pb-Free package. This device meets or exceeds the RF switch
needs of IEEE802.11b/g/n RF systems.
Ordering Information
RF5500 11b/g/n WLAN SP3T Switch
RF5500PCBK-410 Fully Assembled Evaluation Board and 5 loose pcs.
Optimum Technology Matching® Applied
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
®
RX/TX operations. This switch can also be
®
receive modes simutaneously with a slight
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
RF MEMS
LDMOS
DS100304
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching ®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trad emarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for us e by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
1 of 8

RF5500
Caution! ESD sensitive device.
Exceeding any one or a combination of the Absolute Maximum Rating conditions may
cause permanent damage to the device. Extended application of Absolute Maximum
Rating conditions to the device may reduce device reliability. Specified typical per formance or functional operation of the device under Absolute Maximum Rating conditions is not implied.
RoHS status based on EUDirective 2002/95/EC (at time of this document revision).
The information in this publication is believed to be accurate and reliable. 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 par ties, 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.
Absolute Maximum Ratings
Parameter Rating Unit
Supply Voltage 5 V
Ruggedness Output VSWR 10:1
Stability Output VSWR 5:1
ESD Human Body Model TBD V
ESD Device Model TBD V
Operating Temperature Range -40 to +85 °C
Storage Temperature -40 to +150 °C
Moisture Sensitivity Level MSL2
Parameter
Min. Typ. Max.
2.4GHz to 2.5GHz Switch
Transmit and Receive
Parameters
Frequency 2.4 2.5 GHz
Insertion Loss 0.8 1.0 dB All ports
Noise Figure 0.8 1.0 dB All ports
Insertion Loss 3.8 4.0 dB RF1/RF2, RF1/RF3, and RF2/RF3 Modes
Noise Figure 3.8 4.0 dB RF1/RF2, RF1/RF3, and RF2/RF3 Modes,
Passband Ripple -0.2 +0.2 dB
P1dB 28 dBm 3.1 or higher control voltage for 30dB min,
Input Return Loss 15 18 dB
Output Return Loss 15 18 dB
Current Consumption 1 5 A Switch operating current
Port Impedance All ports, Note 2
Input 50 Receive
Output 50 Tra nsm it
Isolation 13 18 dB RF1, RF2, & RF3 Mode
Switch Control Voltage SW1, SW2, & SW3 pins
Low 0 0.2 V
High 2.1 2.8 5.0 V
Switch Control Speed 50 nsec
Specification
Unit Condition
Unless otherwise noted the following conditions apply: Control voltage= 2.8V, Temp=40°C to +85°C, over frequency range, and
range
over V
CC
Note 4
28typ. at 2.8V
2 of 8
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
DS100304

Pin Function Description
1RF1
2RF2
3GND
4ANT
5RF3
6VRF3
7VRF2
8VRF1
RF port.
RF port.
Ground connection.
Antenna port.
RF port.
Switch control to enable RF3 to ANT port.
Switch control to enable RF2 to ANT port.
Switch control to enable RF1 to ANT port.
Switch Control Logic
Mode VRF1 VRF2 VRF3 Condition
RF3 0 0 1 RF 3 port to ANT port
RF2 0 1 0 RF 2 port to ANT port
RF1 1 0 0 RF 1 port to ANT port
RF5500
DS100304
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
3 of 8

RF5500
RF1
RF3
VRF3
VRF2
VRF1
RF2
GND
ANT
1
3
4 5
6
7
8
2
Pin Out
4 of 8
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
DS100304

Application Schematic
1
3
4 5
6
7
8
2
C1
100 pF
RF1
C2
100 pF
RF2 COM
C3
100 pF
ANT
C4
100 pF
RF3
VRF1
VRF2
VRF3
1
2
3
4
5
P1
VRF3
VRF2
VRF1
RF5500
DS100304
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
5 of 8

RF5500
Package Drawing
DFN, 8-Pin, 2mmx2mmx0.55mm
PCB Metal Land Pattern
6 of 8
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
DS100304

PCB Solder Mask Pattern
RF5500
PCB Stencil Pattern
DS100304
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
7 of 8

RF5500
8 of 8
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
DS100304