11-365
Ordering Information
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Functional Block Diagram
Product Description
Features
Optimum Technology Matching® Applied
Si BJT
Si Bi-CMOS
InGaP/HBT
GaAs HBT
SiGe HBT
GaN HEMT
GaAs MESFET
Si CMOS
SiGe Bi-CMOS
GaAs pHEMT
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
provide 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 func-
tion 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 output. 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 inte-
grated 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.
• Reduced Solution Size
Integrating Antenna Switch
and Harmonic 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
Equipment
RF7115
Quad-Band GSM850/GSM900/DCS/PCS Trans-
mit Module
RF7115SB
Power Amp Module 5-Piece Sample Pack
RF7115PCBA-41X
Fully Assembled Evaluation Board
0
Rev A0 060808
RoHS Compliant & Pb-Free Product
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