Preliminary
RF5388
3.3V, DUAL-BAND FRONT-END MODULE
Package Style: QFN, 40-Pin, 6 x 6 x 0.9 mm
RX _a
RX_g
GND
GND
32
38
36
33
31
Features
Single-Module Radio Front-
End
Single Supply Voltage 3.0V to
3.6V
Integrated 2.5GHz & 5GHZ
PA’s, Diplexers, Filters &
Switches for TX & RX
P
OUT
=18dBm, 11g, OFDM a
4% Typ EVM, P
OUT
=16dBm,
11a, OFDM @ 4% Typ EVM
LNA VCC 1
5
GHz
LNA
RX
Diplexer
SW2
28 ANT
27 SW1
26 VCC_g
25 VCC_g
20
PD_g
PA EN_g 4
TX _g 6
LB
BP
Filter
2.4
GHz
PA
TX
Diplexer
TX_a 8
HB
BP
Filter
5
GHz
PA
PA EN_a 10
14
15
VCC_a
16
VCC_g
17
VCC_a
18
VCC_a
19
PD_a
Applications
IEEE802.11a/b/g/n WLAN
Applications
Single-Chip RF Front-End
Module
2.5GHz and 5GHz ISM Bands
Applications
Wireless LAN Systems
Portable Battery-Powered
Equipment
Functional Block Diagram
Product Description
The RF5388 is a single-chip dual-band integrated front-end module (FEM) for high-
performance WLAN applications in the 2.5GHz and 5GHz ISM bands. The RF5388
addresses the need for aggressive size reduction for a typical 802.11a/b/g RF
front-end design and greatly reduces the number of components outside of the
core chipset thus minimizing the footprint and assembly cost of the overall
802.11a/b/g/n solution. The RF5388 contains integrated PA’s for 2.5GHz and
5GHz, diplexers, TX/RX switch, LNA for the 5.0GHz receive band, matching compo-
nents, some bypass capacitors, built-in power detector for both bands, and filters
for transmit and receive paths. The RF5388 is packaged in a 40-pin,
6mmx6mmx0.9mm QFN package with backside ground. Greatly minimizes next
level board space and allows for simplified integration.
Ordering Information
RF5388
RF5388PCBA-410
3.3V, Dual-Band Front-End Module
Fully Assembled Evaluation Board
Optimum Technology Matching® Applied
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc.
Rev A1 DS071026
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
VCC_g
1 of 14
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