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Optimum Technology Matching® Applied
GaAs HBT
InGaP HBT
GaAs MESFET
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
Functional Block Diagram
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.
Product Description
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
RF MEMS
LB RF IN
TX EN
VRAMP
HB RF IN
RX 1
RX 2
RX 3
RX 4
ANTENNA
B3
VSENSE
B1
B2
VBATT
2
3
4
5
9
13
6
14
15
16
21
7
8
1
Fully Integrated
Power Control Circuit
and Switch Decoder
GSM GaAs Die
DCS/PCS GaAs Die
pHEMT
Switch
RF7115
QUAD-BAND GSM850/GSM900/DCS/PCS
TRANSMIT MODULE
The RF7115 is a high-power, high-efficiency transmit module containing
RFMD’s Power Star
© integrated power control, integrated pHEMT front end
antenna switch and harmonic filtering functionality. All of which combine to pro-
vide for best in class harmonic emission control and RX and TX insertion loss.
The device is self-contained with 50
Ω input and output terminals with no
matching components required. The integrated power control function based
on RFMD’s patented Power Star
© control is incorporated, eliminating the need
for directional couplers, detector diodes, power control ASIC’s, and other power
control circuitry; this allows the module to be driven directly from the DAC out-
put. The device is designed for use as the final portion of the transmit chain in
GSM850, EGSM900, DCS and PCS GMSK and eliminates the need for PA to
antenna switch module matching. On-board power control provides over 70dB
control range. The integrated antenna switch allows true quad band TX and RX
functionality. Built-in current limiter option may be utilized to minimize power
variation in mismatch condition.
Features
Reduced Solution Size Integrat-
ing Antenna Switch and Har-
monic Filtering to Decrease Time
to Market
Package 7x8x1.2mm
IEC 61000-4-2 Compliant
In/Output Matched to 50
Ω
DC Block on Antenna Port
GSM850/900 POUT=33.5dBm
DCS/PCS POUT=30.5dBm
New Current Limiter
Applications
GSM850/EGSM900/DCS/PCS
Products
GPRS Class 12 Capable
Power Star© Module
3V Quad-Band Handsets
Portable Battery-Powered Equip-
ment
Rev A0 DS060808
RoHS Compliant & Pb-Free Product
Package Style: Module (7mmx8mm)
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