QPA9842
®
2700 – 3800 MHz 1/4W Balanced Amplifier
General Description
The QPA9842 is a balanced amplifier module with
embedded hybrid couplers to convert to single ended input
and output ports. The module has an enable pin to allow for
shutting down of the amplifier. The module requires
minimal external components which are VCC choke
inductors, decoupling caps and resistors for bias control.
The QPA9842 provides 25 dBm P1dB with 18.7 dB gain
and +38.2 dBm OIP3 across a wide frequency range of
2700-3800 MHz to cover the 3GPP Bands 42 and 43. The
linear driver amplifier is targeted for use in wireless
infrastructure where high linearity, medium power and high
integration is required. The balanced amplifier configuration
provides very good input and output VSWR and is
especially ideal as the output stage in a macrocell
transceiver board that connects to the high power amplifier
(HPA) board through a long cable or microstrip trace. The
QPA9842 is packaged in a small 5 x 5 mm leadless
package that is internally matched to 50 Ω on all RF ports.
16 Pad 5 x 5 mm leadless SMT Package
Product Features
•
2700 – 3800 MHz
•
Balanced Amplifier with integrated 3 dB hybrids
•
Internally Matched 50 Ω Input / Output
•
Shutdown Mode with 1.8V logic control
•
18.7 dB Gain
•
+38.2 dBm OIP3
•
+25.0 dBm P1dB
•
Good gain flatness across Bands 42, 43
Functional Block Diagram
Applications
•
Wireless Infrastructure
•
Macro BTS Transceivers
•
Booster Amps, Repeaters
Ordering Information
Part No.
QPA9842TR13
QPA9842SR
QPA9842EVB-01
Top View
Description
2,500 pieces on a 13” reel (standard)
100 pieces on a 7” reel
2700 − 3800 MHz Evaluation Board
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QPA9842
®
2700 – 3800 MHz 1/4W Balanced Amplifier
Recommended Operating Conditions
Rating
−40 to +150 °C
+22 dBm
+6 V
+5.5 V
Absolute Maximum Ratings
Parameter
Storage Temperature
RF Input Power, CW, 50 Ω, T=25 °C
Supply Voltage (V
CC
)
Enable Voltage (Enable
)
Parameter
Device Voltage (V
CC
)
Enable (High)
Enable (Low)
T
CASE
Tj for
>10
6
hours MTTF
Min
+3.30
+1.17
0
−40
Typ
+5
+1.8
Max
+5.25
+3.6
+0.63
+105
+190
Units
V
V
V
°C
°C
Exceeding any one or a combination of the Absolute Maximum Rating
conditions may cause permanent damage to the device. Extended
application of Absolute Maximum Rating conditions to the device may
reduce device reliability.
Electrical specifications are measured at specified test conditions.
Specifications are not guaranteed over all recommended operating
conditions.
Electrical Specifications
Parameter
Operational Frequency Range
Test Frequency
Gain
Fc ± 100 MHz
Gain Slope (peak to peak)
Fc ± 250 MHz
Fc ± 350 MHz
Fc ± 500 MHz
Output IP3
Output P1dB
Noise Figure
Input Return Loss
Output Return Loss
Control Current
Total Current
Shutdown Current
Rise time
Fall time
Thermal Resistance, θjc
Pout = +10 dBm/tone, ∆f = 1 MHz
+35.5
+24.0
17.5
Conditions
(1)
Min
2700
Typ
3600
18.7
0.1
0.3
0.6
1.1
+38.2
+25.0
2.3
36
27
Max
3800
20.5
Units
MHz
MHz
dB
dB
dB
dB
dB
dBm
dBm
dB
dB
dB
mA
V
CC_CTRL1
(Pin 6)
Enable Low
From Enable to 90% RF
From Disable to 10% RF
Module (channel to case)
3
284
7
150
60
34.4
350
mA
mA
nS
nS
°C/W
Notes:
1. Test conditions unless otherwise noted: V
CC
= V
CC_CTRL1
= +5.0 V, Enable = +1.8V, Temp = +25 °C, 50 Ω system.
Logic Table
Parameter
Enable
High
Active
Low
Shutdown
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QPA9842
®
2700 – 3800 MHz 1/4W Balanced Amplifier
Application Circuit Schematic and Layout
QPA9842
Bill of Material – QPA9842EVB-01
Reference Des.
n/a
U1
L3, L5
R1, L4
C3, C6
C5
C4
Value
n/a
n/a
18 nH
0 Ω
1 uF
100 pF
Description
Printed Circuit Board
¼ Watt Balanced Amplifier
Inductor, wire wound
Resistor, Chip, Jumper
Capacitor, Chip, 10%, 10V, X5R
Capacitor, Chip, NPO, 5%, 50V, NPO/COG
DNI
Manuf.
Qorvo
Coilcraft
Various
Various
Various
Part Number
QPA9842
0402CS-18NXGRW
Data Sheet May 16, 2017 | Subject to change without notice
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QPA9842
®
2700 – 3800 MHz 1/4W Balanced Amplifier
Typical Performance
Parameter
Frequency
Gain
Fc ± 100 MHz
Gain Slope (peak to peak)
Fc ± 250 MHz
Fc ± 350 MHz
Fc ± 500 MHz
Input Return Loss
Output Return Loss
Output IP3
Output P1dB
Noise Figure
Total Quiescent Current
Notes:
1. Test conditions unless otherwise noted: V
CC
= V
CC_CTRL1
= +5.0 V, Enable = +1.8V, Temp.=+25 °C
Conditions
(1)
2700
17.8
0.2
0.5
0.7
0.9
30
29
Pout = +10 dBm/tone, ∆f = 1 MHz
+38.3
+25.2
1.7
Typical Value
3100
18.3
0.3
0.7
0.9
1.0
35
35
+38.6
+25.2
1.9
3400
18.7
0.2
0.3
0.5
0.7
33
36
+38.7
+24.9
2.1
284
3600
18.7
0.1
0.3
0.6
1.1
36
27
+38.2
+25.0
2.3
3800
18.5
0.3
0.9
1.3
1.9
45
22
+37.3
+25.5
2.4
Units
MHz
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dB
mA
Performance Plots
Test conditions unless otherwise noted: V
CC
= V
CC_CTRL1
= +5V, Enable = +1.8 V, Temp.=+25 °C
21
-40C
+25C
Gain vs. Frequency
Vcc = +5.0 V
0
-5
-10
-15
Input Return Loss vs. Frequency
Vcc = +5.0 V
-40C
+25C
0
-5
Output Return Loss vs. Frequency
Vcc = +5.0 V
20
19
+105C
-10
-15
-40C
+25C
+105C
+105C
|S22| (dB)
2900
3100
3300
3500
3700
3900
4100
4300
|S11| (dB)
Gain (dB)
-20
-25
-30
-35
-40
-45
-20
-25
-30
-35
-40
-45
-50
2700
18
17
16
15
2700
2900
3100
3300
3500
3700
3900
4100
4300
-50
2700
2900
3100
3300
3500
3700
3900
4100
4300
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
45
OIP3 vs Frequency
Vcc = +5.0 V
26
P1dB vs Frequency
4
Noise Figure vs Frequency
25
3
P1dB (dBm)
OIP3 (dBm)
40
24
Noise Figure (dB)
2
23
-40C
25C
85C
105C
35
-40C
+25C
+105C
1
0C
25C
85C
105C
22
30
3400
3500
3600
3700
3800
Frequency (MHz)
21
3400
3500
3600
3700
3800
0
3400
3500
3600
3700
3800
Frequency (MHz)
Frequency (MHz)
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QPA9842
®
2700 – 3800 MHz 1/4W Balanced Amplifier
Performance Plots – continued
Test conditions unless otherwise noted: V
CC
= V
CC_CTRL1
= +5V, Enable = +1.8 V, Temp.=+25 °C
45
OIP3 vs Frequency
Temp.=+25°C
26
P1dB vs Frequency
Temp.=+25°C
4
Noise Figure vs Frequency
Temp.=+25°C
25
P1dB (dBm)
OIP3 (dBm)
40
24
Noise Figure (dB)
3
2
23
35
1
22
30
2600
2800
3000
3200
3400
3600
3800
21
2600
2800
3000
3200
3400
3600
3800
0
2600
2800
3000
3200
3400
3600
3800
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
Data Sheet May 16, 2017 | Subject to change without notice
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