RF3105 RF Micro Devices, RF3105 Datasheet

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RF3105

Manufacturer Part Number
RF3105
Description
Manufacturer
RF Micro Devices
Datasheet

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Product Description
The RF3105 is a high-power, high-efficiency linear ampli-
fier IC targeting 3V handheld systems. The device is
manufactured on an advanced Gallium Arsenide Hetero-
junction Bipolar Transistor (HBT) process, and has been
designed for use as the final RF amplifier in dual-mode
3V CDMA/AMPS handheld digital cellular equipment,
spread-spectrum systems, and other applications in the
824MHz to 849MHz band. The RF3105 has a digital bias
control voltage for low current in standby mode. The
device is self-contained with 50
matched to obtain optimum power, efficiency, and linear-
ity
6mmx6mm land grid array with backside ground.
Optimum Technology Matching® Applied
Rev A1 001030
Typical Applicat ions
• 3V CDMA/AMPS Cellular Handsets
Si BJT
Si Bi-CMOS
characteristics.
VREG
VCC1
RF IN
Funct ional Block Diagram
1
2
3

GaAs HBT
SiGe HBT
The
module is
4
2
Preliminary
input and output that is
GaAs MESFET
Si CMOS
7
6
5
GND
RF OUT
VCC2
an ultra-small
• Spread-Spectrum Systems
Feat ures
Ordering Infor mat ion
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
3V 900MHZ LINEAR AMPLIFIER MODULE
• Input/Output Internally Matched @ 50
• Single 3V Supply
• 29dBm Linear Output Power
• 28dB Linear Gain
• 35% Linear Efficiency
RF3105
RF3105 PCBA
NOTE: Nominal thickness, 1.55 mm.
0.800 sq
1.700
2.500
Package St yle: LGM (6mmx 6mm)
typ
3V 900MHz Linear Amplifier Module
Fully Assembled Evaluation Board
3.000
0.600
0.100
RF3105
http://www.rfmd.com
Fax (336) 664 0454
4.390
0.100
Tel (336) 664 1233
Dimensions in mm.
6.0 sq
2-253
2

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RF3105 Summary of contents

Page 1

... RF amplifier in dual-mode 3V CDMA/AMPS handheld digital cellular equipment, spread-spectrum systems, and other applications in the 824MHz to 849MHz band. The RF3105 has a digital bias control voltage for low current in standby mode. The device is self-contained with 50 input and output that is ...

Page 2

... RF3105 Absolute Maximum Ratings Parameter Supply Voltage (RF off) Supply Voltage (P 31dBm) OUT Control Voltage (V ) REG Input RF Power 2 Mode Voltage (V ) MODE Operating Ambient Temperature Storage Temperature Parameter Overall Frequency Range Linear Gain Second Harmonic Third Harmonic Maximum Linear Output Power (CDMA Modulation) ...

Page 3

... Ground connection. The backside of the package should be soldered to a top side ground pad which is connected to the ground plane with mul- Base tiple vias. The pad should have a short thermal path to the ground plane. Rev A1 001030 is set to LOW. When set HIGH: V MODE MODE RF3105 Interface Schematic 2 2-255 ...

Page 4

... RF3105 mils mil 2 VCC1 VREG 2-256 Evaluat ion Board Schemat ic (Download Bill of Materials from www.rfmd.com strip 3105400- 4.7 F VMODE VCC2 Preliminary 50 strip J2 RF OUT 2.75 V REG MODE Rev A1 001030 ...

Page 5

... Preliminary Evaluat ion Board Layout Board Thickness 0.028”, Board Material FR-4, Multi-Layer Assembly Inner 1 Rev A1 001030 Board Size 2.0” x 2.0” RF3105 Top Back 2-257 2 ...

Page 6

... RF3105 2 2-258 Preliminary Rev A1 001030 ...

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