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Número de pieza | RF7188 | |
Descripción | DUAL-BAND GSM900/DCS1800 TRANSMIT MODULE | |
Fabricantes | RFMD | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de RF7188 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
No Preview Available ! RF7188
DUAL-BAND GSM900/DCS1800
TRANSMIT MODULE
Package Style: Module (6mmx5.93mmx1mm)
Features
High Power and High Efficiency
Transmit Module
GSM900 PAE 34%
DCS1800 PAE 38%
GSM900 POUT 33.4dBm
DCS1800 POUT 31.9dBm
Less Current Consumption at
Rated and ECTEL Power Levels
Integrated Power Flattening Cir-
cuit for Lower Power Variation
under Mismatch Conditions
Integrated VBATT Tracking Circuit
for Improved Switching Spectrum
under Low VBATT Conditions
Dedicated RX Ports
Excellent ESD Protection at
Antenna Port: 8kV
Applications
GSM900/DCS1800 Products
GPRS Class 12 Compatible
3V Dual-Band GSM/GPRS
Handsets
Portable Battery-Powered
Equipment
GND
22
15 GND
NC
TXIN_LB
TXIN_HB
GND
TXP
VPC
23
24
25
26
27
28
Amplifier Die
Load Switch
Z1 SP3T
Z2 +
SP2T
+
Diplexer
ESD
14
13
12
11
CMOS Controller
10
9
GND
GND
ANT
GND
GND
RX2_HB
GND
1
8 GND
Functional Block Diagram
Product Description
The RF7188 is a high-power, high-efficiency transmit module containing RFMD’s PowerStar™
integrated power control, integrated pHEMT front end antenna switch, and harmonic filtering
functionality. These features combine to provide for best-in-class harmonic emission control
and RX and TX insertion loss. The device is self-contained with 50 input and output terminals
with no matching components required. The integrated power control function based on
RFMD’s patented PowerStar™ control eliminates the need for directional couplers, detector
diodes, power control ASICs, 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 dual-band applications utilizing GSM900/DCS1800 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 dual-band TX and RX functionality.
The RF7188 features patented Load Switch functionality to provide less current consumption at
rated and ECTEL power levels
Ordering Information
RF7188
RF7188SB
RF7188PCBA-41X
Dual-Band GSM900/DCS1800 Transmit Module
Transmit Module 5-Piece Sample Pack
Fully Assembled Evaluation Board
DS100727
Optimum Technology Matching® Applied
GaAs HBT
GaAs MESFET
SiGe BiCMOS
Si BiCMOS
GaAs pHEMT
Si CMOS
GaN HEMT
RF MEMS
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 (+1) 336-678-5570 or [email protected].
1 of 16
1 page RF7188
Parameter
Specification
Min. Typ. Max.
Unit
Condition
RX - Section
Nominal test conditions unless otherwise
stated. All unused ports are terminated with
50. Temp=+25°C, VBATT=3.6V, TXP=Low.
Refer to logic table for mode of operation
Insertion Loss, ANT-RX1:LB
1.0 dB 925MHz to 960MHz
Insertion Loss, ANT-RX2:HB
1.2 dB 1805MHz to 1880MHz
Ripple, ANT-RX1 LB
0.2 dB 925MHz to 960MHz
Ripple, ANT-RX2 HB
0.2 dB 1805MHz to 1880MHz
VSWR, ANT-RX1: LB
1.3:1
925MHz to 960MHz
VSWR, ANT-RX2: HB
1.3:1
1805MHz to 1880MHz
TX-Section
TX Leakage to RX Port
Temp=+25°C, VBATT=3.5V, VRAMP=2.1V,
PIN=0dBm, TX EN=High, Duty Cycle=25%,
Pulse Width=1154s
GSM900 ANT-RX 1
0 dBm GSM900 TX Mode:Frequency=880MHz to
915MHz, POUT=+5.3dBm to +33.1dBm
GSM900 ANT-RX 2
0 dBm GSM900 TX Mode:Frequency=880MHz to
915MHz, POUT=+5.3dBm to +33.1dBm
DCS1800 ANT-RX 1
0 dBm DCS1800 TX Mode:Frequency=1710MHz to
1785MHz, POUT=0.4dBm to +31.4dBm
DCS1800 ANT-RX 2
0 dBm DCS1800 TX Mode:Frequency=1710MHz to
1785MHz, POUT=0.4dBm to +31.4dBm
Note: Isolation Calculation Example: Isolation=POUT@ANT-POUT@RXPort. Isolation LB(ANT-RX1)=33-10=23dB, Isolation HB(ANT-RX2)=30-
8=22 dB
DS100727
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
5 of 16
5 Page RF7188
TX/RX Switch
The pHEMT switch integrated in the RF7188 allows for a low loss connection between the antenna port and the two RX ports.
The insertion loss in the TX and RX paths is lower than the loss for a traditional pin-diode switch solution, which means lower
current consumption in TX mode and better receiver sensitivity. The integrated switch also allows for less design complexity
since there is no need for power amplifier to antenna switch matching.
VBATT Tracking Circuit
The RF7188 also incorporates a VBATT tracking feature that eliminates the need for the transceiver/baseband to regulate the
ramping signal as the supply voltage decreases. The internal circuit monitors the supply voltage and adjusts the ramping signal
such that the switching spectrum is minimally impacted..
DS100727
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
11 of 16
11 Page |
Páginas | Total 16 Páginas | |
PDF Descargar | [ Datasheet RF7188.PDF ] |
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