RF3108PCBA-41X RFMD [RF Micro Devices], RF3108PCBA-41X Datasheet

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RF3108PCBA-41X

Manufacturer Part Number
RF3108PCBA-41X
Description
TRIPLE-BAND GSM/DCS/PCS POWER AMP MODULE
Manufacturer
RFMD [RF Micro Devices]
Datasheet
1.RF3108PCBA-41X.pdf (10 pages)
Product Description
The RF3108 is a high-power, high-efficiency power ampli-
fier module offering high performance in GSM or GPRS
applications. The device is self-contained with 50Ω input
and output terminals. The device is manufactured on an
advanced GaAs HBT process, and has been designed for
use as the final RF amplifier in GSM/DCS and PCS hand-
held digital cellular equipment and other applications in
the 880MHz to 915MHz and 1710MHz to 1910MHz
bands. On-board power control provides over 70dB of
control range with an analog voltage input, and provides
power down with a logic “low” for standby operation. The
device is packaged in an ultra-small (9mmx10mm) LCC,
minimizing the required board space.
Optimum Technology Matching® Applied
Rev A7 051003
Typical Applications
GSM V
PCS V
• 3V Dual-Band/Triple-Band GSM Handsets
• Commercial and Consumer Systems
GSM IN
Si BJT
Si Bi-CMOS
InGaP/HBT
PCS IN
GND
VCC
VCC
APC
APC
1
2
3
4
5
6
7
Functional Block Diagram
GaAs HBT
SiGe HBT
GaN HEMT
0
GaAs MESFET
Si CMOS
SiGe Bi-CMOS
14
13
12
11
10
9
8
PCS OUT
GND
GND
VCC
GND
GND
GSM OUT
• Portable Battery-Powered Equipment
• GPRS Class 12 Compatible
Features
Ordering Information
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
• Single 2.9V to 4.7V Supply Voltage
• +35.5dBm GSM Output Pwr at 3.5V
• +33.0dBm DCS/PCS Output Pwr at 3.5V
• 55% GSM and 50% DCS/PCS Efficiency
• Supports GSM, E-GSM and DCS/PCS
• 9mmx10mm Package Size
RF3108
RF3108PCBA-41XFully Assembled Evaluation Board
1.40
1.40
1.40
1.40
1.40
1.40
1.30
NOTE: Shaded area represents Pin 1.
0.30
Package Style: Module
Triple-Band GSM/DCS/PCS Power Amp Module
Note orientation of Pin 1.
TRIPLE-BAND GSM/DCS/PCS
0.60
typ.
9.0 + 0.10
POWER AMP MODULE
0.90
typ.
RF3108
10.0 + 0.10
1.00
typ.
http://www.rfmd.com
Fax (336) 664 0454
Tel (336) 664 1233
0.38
Ref.
+ 0.10
1.55
2-391

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RF3108PCBA-41X Summary of contents

Page 1

... Supports GSM, E-GSM and DCS/PCS 12 GND • 9mmx10mm Package Size 11 VCC 10 GND Ordering Information 9 GND RF3108 8 GSM OUT RF3108PCBA-41XFully Assembled Evaluation Board RF Micro Devices, Inc. 7628 Thorndike Road Greensboro, NC 27409, USA RF3108 TRIPLE-BAND GSM/DCS/PCS POWER AMP MODULE 10.0 + 0.10 1.00 typ. 0.60 0.90 0.38 typ. typ. ...

Page 2

RF3108 Absolute Maximum Ratings Parameter Supply Voltage Power Control Voltage (V ) APC1,2 DC Supply Current Input RF Power Duty Cycle at Max Power Output Load VSWR Operating Case Temperature Storage Temperature Parameter Min. Overall (GSM Mode) Operating Frequency Range ...

Page 3

Parameter Min. Overall (DCS/PCS Mode) Operating Frequency Range Maximum Output Power 31.5 31.5 31.0 29.5 29.0 Total Efficiency Recommended Input Power Range Output Noise Power Forward Isolation Second Harmonic Third Harmonic All other spurious Input Impedance Input VSWR Output Load ...

Page 4

RF3108 Pin Function Description 1 VCC1 Power Supply for the driver stage of the DCS/PCS band. 2 DCS/PCS IN RF Input to the DCS/PCS band. This is a 50Ω input. 3 DCS/PCS Power control for the pre-amplifier, driver, and output ...

Page 5

Theory of Operation and Application Information The RF3108 is a triple-band, GSM/DCS/PCS power amplifier with two separate RF inputs and outputs that are internally matched to 50Ω. Pins 2 and 14 of the device provide the RF input and output ...

Page 6

RF3108 VCC PCS IN PCS VAPC GND GSM VAPC GSM IN VCC 2-396 Pin Out 1 GND GND GND GND 2 GND GND GND 3 GND GND 4 GND GND GND GND 5 GND GND GND 6 GND GND 7 ...

Page 7

Ω μstrip DCS/PCS Ω μstrip DCS/ PCS VAPC2 GSM VAPC1 50 Ω μstrip GSM Evaluation Board Schematic VCC C1 Ω μstrip J1 DCS/PCS Ω ...

Page 8

RF3108 Board Thickness 0.031”; Board Material FR-4; Multi-Layer 2-398 Evaluation Board Layout Board Size 2.0” x 2.0” Rev A7 051003 ...

Page 9

Harmonic Performance GSM Band @3. +6dBm P CC -35.0 2nd Fo(dBc) 3rd Fo(dBc) -40.0 -45.0 -50.0 -55.0 880.0 885.0 890.0 895.0 900.0 Frequency Power and Efficiency Performance @ 3. 2. APC ...

Page 10

RF3108 DCS Band Power and Efficient Performance @ 3. 2. APC 35.0 34.5 34.0 33.5 33.0 32.5 32.0 31.5 31.0 1700.0 1710.0 1720.0 1730.0 1740.0 1750.0 1760.0 1770.0 1780.0 1790.0 Frequency 2nd and 3rd Harmonic Performance ...

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