RF2119 Two-Way Pagers 915MHz Band Equipment Spread Spectrum Syste

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RF2119 Two-Way Pagers 915MHz Band Equipment Spread Spectrum Syste

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RF2119
Two-Way Pagers 915MHz Band Equipment Spread Spectrum Systems AMPS/ETACS Cellular Handsets CDPD Portable Data Cards Personal Digital Cellular
POWER AMPLIFIERS
RF2119 high-power, high-efficiency amplifier targeting handheld systems. device manufactured advanced Gallium Arsenide Heterojunction Bipolar Transistor (HBT) process, been designed final amplifier hand-held digital cellular equipment, spread spectrum systems, other applications 800MHz 960MHz band. device well suited either pulsed applications. RF2119 deliver 29.5dBm linear output power. device self-contained with input output easily matched obtain optimum power, efficiency, linearity characteristics. package PSSOP-16 with backside ground.
.157 .150
.012 .008 .025
.004 .000
EXPOSED HEATSINK
.197 .189
.102 .110
.244 .228 °MAX 0°MIN
.059 .051
.062 .070
.030 .018
.009 .008
Refer "Handling PSOP PSSOP Products" page 16-15 special handling information.
Bi-CMOS
GaAs SiGe
GaAs MESFET CMOS
Single Supply 30dBm Output Power 2.5V 30dB Small Signal Gain Efficiency On-board Power Down Mode 800MHz 960MHz Operation
LMATCH GND1 BIAS1 BIAS CIRCUITS PACKAGE BASE
BIAS2
RF2119 RF2119 PCBA High Efficiency Power Amplifier Fully Assembled Evaluation Board
Micro Devices, Inc. 7625 Thorndike Road Greensboro, 27409,
(336) 1233 (336) 0454 http://www.rfmd.com
000404
2-55
RF2119
Absolute Maximum Ratings Parameter
Supply Voltage off) Supply Voltage Control Voltage (VPC) Input Power Dissipated Power Peak Dissipated Power Operating Case Temperature Storage Temperature
Preliminary
Rating
+8.0 +5.2 +3.0 +110 +150
Unit
Refer "Handling PSOP PSSOP Products" page 16-15 special handling information.
POWER AMPLIFIERS
Caution! sensitive device.
Micro Devices believes furnished information correct accurate time this printing. However, Micro Devices reserves right make changes products without notice. Micro Devices does assume responsibility described product(s).
Parameter
Overall
Usable Frequency Range Small Signal Gain Maximum Output Power
Specification
Min. Typ. Max.
Unit
Condition
T=25°C, =2.5V, =2.2V, Freq=902MHz, =2dBm
29.5 32.5 31.5
Maximum Pulsed Output Power
Total Efficiency Pulsed Efficiency Input Power Isolation Second Harmonic Suppression Third Harmonic Suppression Input VSWR Output Load VSWR
30.5 33.5 29.3
31.5 34.5 35.5
Supply Voltage=2.5V Supply Voltage=3.0V Supply Voltage=3.5V Supply Voltage=2.0V Supply Voltage=2.5V, 12.5% duty cycle Supply Voltage=3.0V, 12.5% duty cycle Supply Voltage=3.5V, 12.5% duty cycle 12.5% duty cycle =0V, Input Power=+6dBm
<2:1 10:1
AMPS Application
Frequency Maximum Output Power Efficiency Maximum Output Power Idle Current Second Harmonic Suppression Current Total 30.5
With source impedance damage. T=25°C, =3.4V, =1.8V, Freq=836MHz, =+3dBm
AMPS Application
Frequency Maximum Output Power 30.5 31.5
T=25°C, =3.5V, =1.6V, Freq=836MHz, =+8dBm (see AMPS application schematic) 29.5 30.8 =2.7V =3.0V =3.5V
Efficiency Maximum Output Power Idle Current Maximum Output Power
Power Down Control
Turn On/Off Time "OFF" Voltage
2-56
000404
Preliminary
"ON" Voltage "ON" Current "OFF" Current 1200 =2.2V Standby, =0.5V
RF2119
Power Supply
Voltage Voltage Current Total Specifications Operating Limits =2.5V, =2.2V, =+3dBm, T=25°C
POWER AMPLIFIERS
000404
2-57
RF2119
Function LMATCH Description
Ground externally. Interstage tuning. This internally blocked will connect shunt inductor microstrip line used interstage tuning. Length from should approximately 60mils 915MHz 75mils 902MHz 120mils 836MHz. lumped element equivalent 1.2nH 2.0nH ground, depending frequency band interest. Ground externally. Power supply stage should through 3.9nH inductor with decoupling capacitor side. Ground stage Keep traces physically short connect immediately ground plane best performance. input. external blocking capacitor required this port connected path ground voltage. Ground externally. Ground return first stage bias. This should connected 33nH inductor ground. Power control voltage. maximum power, this voltage should least 2.2V. turn off, this voltage should less than 0.6V. This should bypassed close practical. connection. connection. output power supply output stage. bias output stage provided through this external matching network required provide optimum load impedance; application schematics details. Same Same connection. Ground return second stage bias. This should connected 33nH inductor ground. Ground connection. backside package should soldered side ground which connected ground plane with multiple vias. should have short thermal path ground plane.
Preliminary
Interface Schematic
POWER AMPLIFIERS
VCC1 GND1 BIAS1
Base
BIAS2
2-58
000404
Preliminary
mils BIAS CIRCUITS PACKAGE BASE 12pF
RF2119
mils BIAS CIRCUITS PACKAGE BASE
000404
2-59
POWER AMPLIFIERS
RF2119
(Download Bill Materials from www.rfmd.com.)
Preliminary
P1-1
POWER AMPLIFIERS
Drawing 2119400L1 60-120 mils P1-1 BIAS CIRCUITS PACKAGE BASE
P1-3
22nH P1-1 12pF
P1-3
mat'l: FR-4; Layer: mils; w/plating)
microstrip line microstrip line MHz. Lumped element would ground depending frequency band interest.
2-60
000404
Preliminary
"#$%&! '()'(
RF2119
POWER AMPLIFIERS
000404
2-61
RF2119
Preliminary
POWER AMPLIFIERS
2-62
000404

RF2119 Two-Way Pagers 915MHz Band Equipment Spread Spectrum Syste

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