RFMD RF3826SB

RF3826
RF3826
30MHz to
2500MHz, 9W
GaN Wideband Power
Amplifier
30MHz TO 2500MHz, 9W GaN WIDEBAND
POWER AMPLIFIER
Package: AlN Leadless Chip Carrier / SO8
VGS
Pin 1
Features

Advanced GaN HEMT Technology

Output Power of 9W

Advanced Heat-Sink Technology



30MHz to 2500MHz
Instantaneous Bandwidth
RF IN
Pin 2,3
RF OUT / VDS
Pin 6,7
Input Internally Matched to 50
GND
BASE
28V Operation Typical
Performance
POUT 39.5dBm
 Gain 12dB
 Power Added Efficiency 45%
(30MHz to 2500MHz)
 Power Added Efficiency 50%
(200MHz to 1800MHz)
-40°C to 85°C Operating
Temperature



Large Signal Models Available
Applications


Class AB Operation for Public
Mobile Radio
Power Amplifier Stage for
Commercial Wireless
Infrastructure

General Purpose Tx Amplification

Test and Instrumentation

Civilian and Military Radar
Functional Block Diagram
Product Description
The RF3826 is a wideband Power Amplifier designed for CW and pulsed applications such as wireless infrastructure, RADAR, two way radios and general purpose
amplification. Using an advanced high power density Gallium Nitride (GaN) semiconductor process, these high-performance amplifiers achieve high efficiency, flat
gain and large instantaneous bandwidth in a single amplifier design. The RF3826
is an input matched GaN transistor packaged in an air cavity ceramic package
which provides excellent thermal stability through the use of advanced heat sink
and power dissipation technologies. Ease of integration is accomplished through
the incorporation of optimized input matching network within the package that provides wideband gain and power performance in a single amplifier. An external output match offers the flexibility of further optimizing power and efficiency for any
sub-band within the overall bandwidth.
Optimum Technology Matching® Applied
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
BiFET HBT
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trademark 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. ©2012, RF Micro Devices, Inc.
DS120418
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support, contact RFMD at (+1) 336-678-5570 or [email protected].
1 of 15
RF3826
Absolute Maximum Ratings
Parameter
Rating
Unit
Drain Voltage (VD)
150
V
Gate Voltage (VG)
-8 to +2
V
Gate Current (IG)
5
mA
Operational Voltage
32
V
RF- Input Power
34
dBm
Ruggedness (VSWR)
Caution! ESD sensitive device.
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. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied.
The information in this publication is believed to be accurate and reliable. However, no
responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any
infringement of patents, or other rights of third parties, resulting from its use. No
license is granted by implication or otherwise under any patent or patent rights of
RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice.
12:1
Storage Temperature Range
-55 to +125
Operating Temperature Range (TC)
-40 to +85
°C
200
°C
Operating Junction Temperature (TJ)
Human Body Model
Class 1B
MTTF (TJ < 200°C, 95% Confidence Limits)*
3E + 06
Hours
9.8
°C/W
Thermal Resistance, RTH (junction to case)
measured at TC = 85°C, DC bias only
RoHS (Restriction of Hazardous Substances): Compliant per EU Directive
2002/95/EC.
°C
* MTTF - median time to failure for wear-out failure mode (30% IDSS degradation) which is determined by the technology process reliability.
Refer to product qualification report for FIT(random) failure rate.
Operation of this device beyond any one of these limits may cause permanent damage. For reliable continuous operation, the device voltage
and current must not exceed the maximum operating values specified in the table on page two.
Bias Conditions should also satisfy the following expression: PDISS < (TJ - TC)/RTH J - C and TC = TCASE
Parameter
Min.
Specification
Typ.
Max.
28
32
-3
-2.5
Unit
Condition
Recommended Operating
Conditions
Drain Voltage (VDSQ)
Gate Voltage (VGSQ)
-5
Drain Bias Current
55
V
V
mA
RF Input Power (PIN)
32
Input Source VSWR
10:1
dBm
RF Performance
Characteristics
Frequency Range
30
2500
MHz
Small signal 3dB bandwidth
Linear Gain
12
dB
POUT = 30dBm
Power Gain
9
dB
P3DB
1
dB
POUT = 30dBm, 30MHz to 2500MHz
-0.02
dB/°C
Gain Flatness
Gain Variation with Temperature
Input Return Loss (S11)
Output Power (P3dB)
Power Added Efficiency (PAE)
2 of 15
-10
-8
dB
39.5
dBm
45
%
30MHz to 2500MHz
30MHz to 2500MHz
50
%
200MHz to 1800MHz
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS120418
RF3826
Parameter
Min.
Specification
Typ.
Max.
Unit
RF Functional Tests
VGS(Q)
Condition
[1], [2]
-3
V
Gain
11
dB
PIN = 20dBm
Power Gain
8.5
dB
PIN = 31dBm
Input Return Loss
-10
dB
Output Power
39
dBm
Power Added Efficiency (PAE)
40
%
[1] Test Conditions: VDSQ = 28V, IDQ = 55mA, CW, f = 2000MHz, T = 25ºC.
[2] Performance in a standard tuned test fixture.
DS120418
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
3 of 15
RF3826
Typical Performance in Standard Fixed Tuned Test Fixture Matched for 30MHz to
2500MHz (T = 25°C, unless noted)
SmallSignalsparametersversusFrequency
GainversusFrequency,PIN =30dBm
(CW,VD =28V,IDQ =55mA)
5
15
12
0
12
9
5
6
10
Gain(dB)
0
2600
2400
2200
2000
2200
2400
2600
2200
2400
2600
2000
1800
1600
1400
800
0
2600
2400
2200
2000
1800
1600
1400
1200
800
25
1000
30
600
20
400
40
600
15
400
50
10
200
IRL,InputReturnLoss(dB)
5
60
200
85C
85qC
25C
25qC
40C
40
qC
1200
85C
85qC
25C
25qC
40qC
40C
1000
80
0
1800
(CW,VD =28V,IDQ =55mA)
(CW,VD =28V,IDQ =55mA)
PowerAddedEfficiency,PAE(%)
1600
InputReturnLossversusFrequency,PIN =30dBm
PAEversusFrequency,PIN =30dBm
Frequency(MHz)
Frequency(MHz)
PAEversusFrequency,POUT =39dBm
Gain/IRLversusFrequency,POUT =39dBm
(CW,VD =28V,IDQ =55mA)
(CW,VD =28V,IDQ =55mA)
0
70
12
9
10
6
15
3
InputReturnLoss(dB)
5
PowerAddedEfficiency,PAE(%)
15
Gain(dB)
1400
Frequency(MHz)
Frequency(MHz)
70
1200
0
800
20
1000
3
600
15
400
6
2600
2400
2200
2000
1800
1600
1400
1200
800
1000
600
400
200
0
0
9
200
S21
S11
S22
85C
85qC
25C
25qC
40C
40
qC
0
3
Magnitude,S11,S22 (dB)
Magnitude,S21 (dB)
(VD =28V,IDQ =55mA)
15
60
50
40
30
Gain
IRL
4 of 15
2000
1800
1600
1400
1200
1000
800
600
400
200
2600
2400
2200
2000
1800
1600
1400
1200
800
1000
600
400
200
0
Frequency(MHz)
20
0
20
0
Frequency(MHz)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS120418
RF3826
Typical Performance in Standard Fixed Tuned Test Fixture Matched for 30MHz to
2500MHz (T = 25°C, unless noted)
GainversusFrequency
PowerAddedEfficiencyversusFrequency
(CW,VD =28V,IDQ =55mA)
(CW,VD =28V,IDQ =55mA)
60
15
50
PowerAddedEfficiency,PAE(%)
12
6
PPout=39dBm
OUT
PPout=35dBm
OUT
PPout=25dBm
OUT
3
0
40
30
PPout=39dBm
OUT
PPout=35dBm
OUT
PPout=25dBm
OUT
20
10
Pout=39dBm
POUT
Pout=35dBm
POUT
P
Pout=25dBm
OUT
Gain(dB)
15
2600
2400
2200
2000
1800
1600
1400
1200
9
1000
25
800
2600
11
10
600
2400
12
20
400
2200
13
10
0
2000
14
0
200
1800
(CW,VD =28V,IDQ =55mA)
(CW,VD =28V,IDQ =55mA)
InputReturnLoss,IRL(dB)
1600
GainversusOutputPower
InputReturnLossversusFrequency
freq=50MHz
freq=1200MHz
freq=2000MHz
25
28
Frequency(MHz)
PowerAddedEfficiencyversusOutputPower
31
34
POUT,OutputPower(dBm)
37
40
InputReturnLossversusOutputPower
(CW,VD =28V,IDQ =55mA)
(CW,VD =28V,IDQ =55mA)
60
0
freq=50MHz
freq=1200MHz
freq=2000MHz
50
freq=50MHz
freq=1200MHz
freq=2000MHz
5
InputReturnLoss,IRL(dB)
PowerAddedEfficiency,PAE(%)
1400
Frequency(MHz)
Frequency(MHz)
5
1200
800
1000
600
400
0
2600
2400
2200
2000
1800
1600
1400
1200
800
1000
600
400
0
200
0
200
Gain(dB)
9
40
30
20
10
15
20
10
0
25
25
DS120418
28
31
34
POUT,OutputPower(dBm)
37
40
25
28
31
34
POUT,OutputPower(dBm)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
37
40
5 of 15
RF3826
Typical Performance in Standard Fixed Tuned Test Fixture Matched for 30MHz to
2500MHz (T = 25°C, unless noted)
IMDversusOutputPower
IMDversusToneSpacing
(VD =28V,IDQ =85mA,f1=1199.5MHz,f2=1200.5MHz)
(POUT =9WPEP,VD =28V,IDQ =85mA)
0
10
IMD3
IMD3
IMD5
IMD5
IMD7
IMD7
IntermodulationDistortion(IMD dBc)
IntermodulationDistortion(IMD dBc)
0
20
30
40
50
IMD3
IMD3
IMD5
IMD5
IMD7
IMD7
20
30
40
50
60
f1=1200MHzToneSpacing/2
f2=1200MHz+ToneSpacing/2
70
60
0.1
1
10
POUT,OutputPower(W PEP)
0.1
100
10
100
GainversusOutputPower
IMD3versusOutputPower
(2Tone1MHzSeparation,VD =28V,IDQ varied,fc=1200MHz)
(2Tone1MHzSeparation,VD =28V,IDQ varied,fc=1200MHz)
10
IMD3,IntermodulationDistortion(dBc)
15
25mA
55mA
85mA
115mA
145mA
14
13
12
11
10
9
8
7
6
15
20
25
30
35
25mA
55mA
85mA
115mA
145mA
40
45
50
15
6 of 15
1
ToneSpacing(MHz)
16
Gain(dB)
10
20
25
30
POUT,OutputPower(dBm)
35
40
0.1
1
10
100
POUT,OutputPower(WPEP)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS120418
RF3826
Typical Performance in Standard Fixed Tuned Test Fixture Matched for 200MHz
to 1800MHz (T = 25°C, unless noted)
SmallSignalsparametersversusFrequency
GainversusFrequency,PIN =30dBm
(VD =28V,IDQ =55mA)
(CW,VD =28V,IDQ =55mA)
12
0
12
9
5
6
10
0
60
5
2000
1800
2000
1800
800
600
400
200
0
2000
1800
1600
1400
1200
1000
800
600
400
25
200
85qC
85C
25qC
25C
40
qC
40C
20
1600
85C
85qC
25C
25qC
40C
40qC
15
1400
40
10
1200
50
1000
IRL,InputReturnLoss(dB)
70
0
PowerAddedEfficiency,PAE(%)
1600
(CW,VD =28V,IDQ =55mA)
(CW,VD =28V,IDQ =55mA)
Frequency(MHz)
Frequency(MHz)
Gain/IRLversusFrequency,POUT =39dBm
PAEversusFrequency,POUT =39dBm
(CW,VD =28V,IDQ =55mA)
(CW,VD =28V,IDQ =55mA)
5
80
12
0
70
9
5
6
10
3
15
Gain
PowerAddedEfficiency,PAE(%)
15
InputReturnLoss(dB)
Gain(dB)
1400
InputReturnLossversusFrequency,PIN =30dBm
PAEversusFrequency,PIN =30dBm
20
1200
Frequency(MHz)
Frequency(MHz)
30
1000
0
800
20
85C
85qC
25C
25qC
40
qC
40C
600
3
400
15
2000
1800
1600
1400
1200
1000
800
600
400
200
0
0
6
200
S21
S11
S22
9
0
3
Gain(dB)
15
Magnitude,S11,S22 (dB)
5
Magnitude,S21 (dB)
15
60
50
40
Frequency(MHz)
DS120418
2000
1800
1600
1400
1200
1000
800
600
400
30
200
20
0
2000
1800
1600
1400
1200
1000
800
600
400
200
0
IRL
0
Frequency(MHz)
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support, contact RFMD at (+1) 336-678-5570 or [email protected].
7 of 15
RF3826
Typical Performance in Standard Fixed Tuned Test Fixture Matched for 200MHz
to 1800MHz (T = 25°C, unless noted)
GainversusFrequency
PowerAddedEfficiencyversusFrequency
(CW,VD =28V,IDQ =55mA)
(CW,VD =28V,IDQ =55mA)
15
70
60
PowerAddedEfficiency,PAE(%)
12
6
PPout=39dBm
OUT
PPout=35dBm
OUT
PPout=25dBm
OUT
3
50
40
30
PPout=39dBm
OUT
PPout=35dBm
OUT
Pout=25dBm
POUT
20
10
2000
1800
1600
1400
1200
1000
GainversusOutputPower
InputReturnLossversusFrequency
(CW,VD =28V,IDQ =55mA)
(CW,VD =28V,IDQ =55mA)
14
0
Pout=39dBm
POUT
Pout=35dBm
POUT
P
Pout=25dBm
OUT
13
12
10
Gain(dB)
InputReturnLoss,IRL(dB)
800
Frequency(MHz)
Frequency(MHz)
5
600
0
2000
1800
1600
1400
1200
1000
800
600
400
200
0
400
0
0
200
Gain(dB)
9
15
11
10
freq=200MHz
freq=1000MHz
freq=1800MHz
9
20
Frequency(MHz)
8 of 15
2000
1800
1600
1400
1200
1000
800
600
400
200
25
0
8
7
28
31
34
37
POUT,OutputPower(dBm)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
40
43
DS120418
RF3826
Typical Performance in Standard Fixed Tuned Test Fixture Matched for 200MHz
to 1800MHz (T = 25°C, unless noted)
InputReturnLossversusOutputPower
PowerAddedEfficiencyversusOutputPower
(CW,VD =28V,IDQ =55mA)
(CW,VD =28V,IDQ =55mA)
0
70
freq=200MHz
freq=1000MHz
freq=1800MHz
freq=200MHz
freq=1000MHz
freq=1800MHz
5
InputReturnLoss,IRL(dB)
PowerAddedEfficiency,PAE(%)
60
50
40
30
20
10
15
20
10
0
25
28
31
34
37
POUT,OutputPower(dBm)
40
43
28
31
34
37
POUT,OutputPower(dBm)
40
43
PowerDissipationDeratingCurve
(BasedonMaximumpackagetemperatureandRTH)
25
PowerDissipation(W)
20
15
10
5
0
0
DS120418
10
20
30
40
50
60
70
MaximumCaseTemperature(°C)
80
90
100
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
9 of 15
RF3826
Package Drawing
(All dimensions in mm.)
A123 : Trace Code
1234 : Serial Number
Package Style: Ceramic SO8
Pin Names and Descriptions
Pin
1
2
3
4
5
6
7
8
Pkg
Base
10 of 15
Name
Description
Gate DC Bias pin
VGS
RF Input
RF IN
RF Input
RF IN
No Connect
N/C
No Connect
N/C
RF OUT/VDS RF Output / Drain DC Bias pin
RF OUT/VDS RF Output / Drain DC Bias pin
No Connect
N/C
Ground
GND
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS120418
RF3826
Bias Instruction for RF3826 Evaluation Board
ESD Sensitive Material. Please use proper ESD precautions when handling devices of evaluation board. Evaluation board
requires additional external fan cooling. Connect all supplies before powering evaluation board.
1. Connection RF cables at RFIN and RFOUT.
2. Connect ground to the ground supply terminal, and ensure that both the VG and VD grounds are also connected to this
ground terminal.
3. Apply -5V to VG.
4. Apply 28V to VD.
5. Increase VG until drain current reaches 55mA or desired bias point.
6. Turn on the RF input.
Typical test data provided is measured to SMA connector reference plane, and include evaluation board / broadband bias
network mismatch and losses.
DS120418
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support, contact RFMD at (+1) 336-678-5570 or [email protected].
11 of 15
RF3826
Evaluation Board Schematic
VG
VD
C15
C25
L24
L12
C13
C23
L11
L23
C21
R11
9
C11
50Ω Microstrip
RF IN
2
3
4
C1
VG
RFIN
N/C
RFOUT
RFIN
R21
L21
GND
1
R23
RFOUT
N/C
N/C
U1
8
7
L20
50Ω Microstrip
RF OUT
6
5
C20
C2
RF3826
Evaluation Board Bill of Materials
Component
Value
C1, C2
2400pF
C13
100pF
C15
10F
C20
0.9pF
C21, C23
1000pF
C25
4.7F
R11
820
R21, R23
390
L11
120nH
L12, L24
1H
L21
82nH
L23
470nH
L20*
0
L20**
1.6nH
C11
NOT USED
*30MHz to 2500MHz RF3826PCBA-410
**200MHz to 1800 MHz RF3826PCBA-411
12 of 15
Manufacturer
Part Number
Dielectric Labs Inc
Panasonic
Murata Electronics
ATC
Panasonic
Murata Electronics
Panasonic
Panasonic
Coilcraft
Coilcraft
Coilcraft
Coilcraft
Panasonic
Coilcraft
-
C08BL242X-5UN-X0
ECJ-1VC1H101J
GRM21BF51C106ZE15L
100A0R9BT150XT
ECJ-1VB1H102K
GRM55ER72A475KA01L
ERJ-3GEYJ821
ERJ-3GEYJ391
1008CS-121XJBC
LPS3015-102MLB
1008CS-820XJLC
EPL2014-271MLB
ERJ-3GEY0R00V
0906-2
-
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS120418
RF3826
Evaluation Board Layout
P1
P2
P3
Device Impedances
Frequency (MHz)
RF3826PCBA-410 (30MHz to 2500MHz)
Z Source ()
Z Load ()
RF3826PCBA-411 (200MHz to 1800MHz)
Z Source ()
Z Load ()
30
49.8 - j1.5
41.4 + j4.6
200
49.5 - j2.0
40.1 - j2.1
49.5 - j2.0
40.2 - j1.1
500
47.3 - j4.0
44.5 + j1.3
47.3 - j4.0
44.8 + j3.5
1000
42.3 - j3.1
35.0 - j8.4
42.3 - j3.1
35.6 - j3.5
1500
39.9 + j1.1
28.2 - j4.0
39.9 + j1.1
29.8 + j3.8
1800
40.4 + j3.7
26.4 - j0.8
40.4 + j3.7
28.9 + j8.9
2000
41.0 + j5.0
25.4 + j1.1
2200
41.3 + j7.0
24.5 + j3.1
2500
44.7 + j9.3
22.9 + j6.2
NOTE: Device impedances reported are the measured evaluation board impedances chosen for a tradeoff of efficiency and peak power
performance across the entire frequency bandwidth.
DS120418
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
13 of 15
RF3826
Device Handling/Environmental Conditions
RFMD does not recommend operating this device with typical drain voltage applied and the gate pinched off in a high humidity,
high temperature environment.
GaN HEMT devices are ESD sensitive materials. Please use proper ESD precautions when handling devices or evaluation
boards.
DC Bias
The GaN HEMT device is a depletion mode high electron mobility transistor (HEMT). At zero volts VGS the drain of the device is
saturated and uncontrolled drain current will destroy the transistor. The gate voltage must be taken to a potential lower than
the source voltage to pinch off the device prior to applying the drain voltage, taking care not to exceed the gate voltage maximum limits. RFMD recommends applying VGS = -5V before applying any VDS.
RF Power transistor performance capabilities are determined by the applied quiescent drain current. This drain current can be
adjusted to trade off power, linearity, and efficiency characteristics of the device. The recommended quiescent drain current
(IDQ) shown in the RF typical performance table is chosen to best represent the operational characteristics for this device, considering manufacturing variations and expected performance. The user may choose alternate conditions for biasing this device
based on performance tradeoffs.
Mounting and Thermal Considerations
The thermal resistance provided as RTH (junction to case) represents only the packaged device thermal characteristics. This is
measured using IR microscopy capturing the device under test temperature at the hottest spot of the die. At the same time, the
package temperature is measured using a thermocouple touching the backside of the die embedded in the device heat sink
but sized to prevent the measurement system from impacting the results. Knowing the dissipated power at the time of the
measurement, the thermal resistance is calculated.
In order to achieve the advertised MTTF, proper heat removal must be considered to maintain the junction at or below the maximum of 200°C. Proper thermal design includes consideration of ambient temperature and the thermal resistance from ambient to the back of the package including heat sinking systems and air flow mechanisms. Incorporating the dissipated DC
power, it is possible to calculate the junction temperature of the device.
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7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS120418
RF3826
Ordering Information
DS120418
Ordering Code
Description
RF3826S2
2-Piece sample bag
RF3826SB
5-Piece bag
RF3826SQ
25-Piece bag
RF3826SR
100 Pieces on 7” short reel
RF3826TR7
750 Pieces on 7” reel
RF3826PCBA-410
Fully assembled evaluation board 30MHz to
2500MHz; 28V operation
RF3826PCBA-411
Fully assembled evaluation board 200MHz to
1800MHz; 28V operation
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
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