RFFM6904 Datasheet, PDF (1/10 Pages) RF Micro Devices – 3.0V TO 4.2V, ISM BAND TRANSMIT/RECEIVE MODULE WITH DIVERSITY TRANSFER SWITCH

RFFM6904
3.0V to 4.2V,
ISM Band
Trans-
mit/Receive
Module with
Diversity
Transfer
Switch
RFFM6904
3.0V TO 4.2V, ISM BAND TRANSMIT/RECEIVE
MODULE WITH DIVERSITY TRANSFER SWITCH
Package: LGA, 32-pin, 8mm x 8mm x 1.2mm
Features
 Integrated LNA, PA, and Transfer
Switch
 Small Form Factor 8.0mm x
8.0mm x 1.2mm
 50 Inputs and Outputs
 Low Insertion Loss, High
Isolation Transfer Switch
 33.5dBm PA Output Power
 Low PA Harmonic Content
LNA In 1
LNA Vref 2
LNA Sel 3
RX Switch 4
TX Switch 5
GND 6
PA Vcc2 7
GND 8
GND 9
PA Out 10
32
Input
Match
31
LNA
30
29
Output
Match
28
27
Output
Match
HBT
PA
Input
Match
11
12
13
14
15
16
26 VRX2
25 VRX1
24 Ant1
23 Ant2
22 VTX1
21 VTX2
20 PA Vcc1
19 GND
18 PA In
17 GND
Applications
 868MHz/900MHz ISM Band
Application
 Single Chip RF Front End Module
 Portable Battery Powered
Equipment
 Wireless Automatic Metering
Applications
Functional Block Diagram
Product Description
The RFFM6904 is a single-chip front-end module (FEM) for applications in
the 868MHz/900MHz ISM Band. The RFFM6904 addresses the need for
aggressive size reduction for typical portable equipment 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
solution. The RFFM6904 contains an integrated 2 Watt PA, TX/RX transfer
switch, LNA with bypass mode, and matching components. The
RFFM6904 is packaged in a 32-pin, 8.0mm x 8.0mm x 1.2mm over-
molded laminate package with backside ground which greatly minimizes
next level board space and allows for simplified integration.
DS120605
GaAs HBT
Optimum Technology Matching® Applied
SiGe BiCMOS
GaAs pHEMT
GaN HEMT
GaAs MESFET
Si BiCMOS
Si CMOS
BiFET HBT
InGaP HBT
SiGe HBT
Si BJT
LDMOS
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.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
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