TRIQUINT TGA4541-SM

TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Applications



4541
VSAT
Point-to-Point Radio
Test Equipment & Sensors
1248
5342
QFN 6x6mm 40L
Product Features







Functional Block Diagram
Frequency Range: 28 – 31 GHz
Power: 23 dBm P1dB
Gain: 33 dB
Output TOI: 31 dBm
Attenuation Range: 30 dB
Bias: Vd = 5 V, Id = 330 mA, Vg = -0.7 V Typical
Package Dimensions: 6.0 x 6.0 x 0.85 mm
General Description
The TriQuint TGA4541-SM is a variable gain amplifier
to be used as a driver amplifier in linear Ka band
applications. The TGA4541-SM operates from 28 to 31
GHz and is designed using TriQuint’s pHEMT
production process.
Pin Configuration
Pin #
Symbol
The TGA4541-SM is available in a low-cost, surface
mount 40 lead 6x6 QFN package and is ideally suited for
VSAT ground terminals and Point-to-Point Radio
applications.
1, 2, 3, 5, 6, 7, 8, 9, 10, 11,
12, 13, 15, 17, 19, 20, 21, 22,
23, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 37, 39, 40
4
14
16
18
24
35
36
38
Lead-free and RoHS compliant.
Ordering Information
The TGA4541-SM typically provides 23 dBm of linear
power with 32 dB of small signal gain and 31 dBm of
output TOI. The attenuation range is typically 30 dB.
Evaluation Boards are available upon request.
Part No.
ECCN
TGA4541-SM
EAR99
N/C
RF IN
Vg
Vd2
Vd3
RF OUT
Vc
Gnd
Vd1
Description
Ka-band Variable Gain Amp
Standard T/R size = 500 pieces on a 7” reel.
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
- 1 of 14 -
Disclaimer: Subject to change without notice
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TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Specifications
Absolute Maximum Ratings
Recommended Operating Conditions
Parameter
Rating
Parameter
Drain Voltage,Vd
Drain Current, Id1
Drain Current, Id2+Id3
Power Dissipation, Pdiss
RF Input Power, CW, 50Ω,T = 25ºC
Channel Temperature, Tch
Mounting Temperature (30 Seconds)
Storage Temperature
+6 V
96 mA
672 mA
4.0 W
+20 dBm
200 oC
260 oC
-40 to 150 oC
Vd
Id1
Id2+Id3
Vg
Min
Typical
Max Units
5
60
270
-0.7
V
mA
mA
V
Electrical specifications are measured at specified test conditions.
Specifications are not guaranteed over all recommended operating
conditions.
Operation of this device outside the parameter ranges given
above may cause permanent damage. These are stress
ratings only, and functional operation of the device at these
conditions is not implied.
Electrical Specifications
Test conditions unless otherwise noted: 25ºC, Vd = 5 V, Id = 330 mA (Id1 = 60 mA, Id2+Id3 = 270 mA), Vc = -1.00 V, Vg = -0.7 V
typical. Id2+Id3 are held constant throughout the test.
Parameter
Operational Frequency Range
Gain
Attenuation Range
Input Return Loss
Output Return Loss
Output Power @ 1dB Gain Compression (max
gain)
Output TOI
Gain Temperature Coefficient (max gain)
Power Temperature Coefficient (max gain)
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
Min
Typical
28
- 2 of 14 -
Max
31
Units
33
30
18
17
23
GHz
dB
dB
dB
dB
dBm
31
-0.08
-0.008
dBm
dB/°C
dB/°C
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TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Specifications (cont.)
Thermal and Reliability Information
Parameter
Condition
Rating
Thermal Resistance, θJC, measured to back of package
Channel Temperature (Tch), and Median Lifetime
(Tm)
Channel Temperature (Tch), and Median Lifetime
(Tm) Under RF Drive
Tbase = 85 °C
Tbase = 85 °C, Vd = 5 V, Id = 330
mA, Pdiss = 1.65 W
Tbase = 85 °C, Vd = 5 V, Id = 330
mA, Pout = 24 dBm, Pdiss = 1.40 W
θJC = 34.5 °C/W
Tch = 142 °C
Tm = 2.8 E+6 Hours
Tch = 133 °C
Tm = 7.9 E+6 Hours
Median Lifetime (Tm) vs. Channel Temperature (Tch)
Median Lifetime, Tm (Hours)
1E+15
1E+14
1E+13
1E+12
1E+11
1E+10
1E+09
1E+08
1E+07
1E+06
1E+05
FET5
1E+04
25
50
75
100
125
150
175
200
Channel Temperature, Tch (°C)
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
- 3 of 14 -
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TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Typical Performance
Id2+Id3 are held constant throughout the test.
Gain vs. Frequency
IRL, ORL vs. Frequency
Vd = 5 V, Id = 330 mA, Vc = -1.00 V, Vg = -0.7 V, 25 C
Vd = 5 V, Id = 330 mA, Vc = -1.00 V, Vg = -0.7 V, 25 C
45
0
40
5
Return Loss (dB)
30
25
20
15
10
0
15
20
30
28
28.5
29
29.5
30
Frequency (GHz)
30.5
31
28
28.5
29
29.5
30
Frequency (GHz)
30.5
31
Output Power vs. Frequency
Power, Gain, Id vs. Input Power
Vd = 5 V, Idq = 330 mA, Vc = -1.00 V, Vg = - 0.7 V, 25 °C
Vd = 5 V, Idq = 330 mA, Vc = -1.00 V, Vg = -0.7 V, 25 C
Output Power (dBm), Gain (dB)
26
25
Output Power (dBm)
IRL
25
5
24
23
22
Psat
21
P1dB
20
19
18
28
28.5
29
29.5
30
Frequency (GHz)
30.5
50
600
@ 29.5 GHz
40
500
30
400
20
300
Pout
Gain
Id
10
200
0
100
-32
31
-28
-24
-20 -16 -12 -8
Input Power (dBm)
-4
0
OTOI vs. Frequency
OTOI vs. Frequency vs. Pout/Tone
Vd = 5 V, Idq = 330 mA, Vc = -1.00 V, Vg = -0.7 V, 25 °C
Vd = 5 V, Idq = 330 mA, Vc = -1.00 V, Vg = -0.7 V, 25 °C
40
40
12 dBm Pout/Tone
35
35
30
OTOI (dBm)
30
OTOI (dBm)
ORL
10
Id (mA)
Gain (dB)
35
25
20
15
20
15
10
10
5
5
0
14 dBm Pout/Tone
12 dBm Pout/Tone
10 dBm Pout/Tone
8 dBm Pout/Tone
4 dBm Pout/Tone
0 dBm Pout/Tone
25
0
28
28.5
29
29.5
30
Frequency (GHz)
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
30.5
31
28
- 4 of 14 -
28.5
29
29.5
30
Frequency (GHz)
30.5
31
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TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Typical Performance (cont.)
Id2+Id3 are held constant throughout the test.
Gain vs. Frequency vs. Drain Voltage
Gain vs. Frequency vs. Temperature
Id = 330 mA, Vc = -1.00 V, Vg = -0.7 V, 25 C
Vd = 5 V, Id = 330 mA, Vc = -1.00 V, Vg = -0.7 V
40
45
38
40
35
Gain (dB)
Gain (dB)
36
34
32
5.5 V
5.0 V
4.5 V
30
28
30
25
-40 C
25 C
85 C
20
15
10
5
26
0
28
28.5
29
29.5
30
Frequency (GHz)
30.5
31
28
38
25
36
24
34
OTOI (dBm)
P1dB (dBm)
26
23
22
-40 °C
25 °C
32
30
28
28.5
29
29.5
30
Frequency (GHz)
30.5
31
29
29.5
30
Frequency (GHz)
30.5
31
Vd = 5 V, Id = 330 mA, Vg = -0.7 V, 25 °C
45
45
40
40
35
35
Attenuation (dB)
Attenuation (dB)
28.5
Attenuation vs. Vc vs. Frequency
Vd = 5 V, Id = 330 mA, Vg = -0.7 V, 29 GHz
30
10
85 C
28
Attenuation vs. Vc vs. Temperature
15
25 C
20
28
20
-40 C
26
22
18
25
31
12 dBm Pout/Tone
24
85 °C
19
30.5
Vd = 5 V, Idq = 330 mA, Vc = -1.00 V, Vg = -0.7 V
Vd = 5 V, Idq = 330 mA, Vc = -1.00 V, Vg = - 0.7 V
20
29
29.5
30
Frequency (GHz)
OTOI vs. Frequency vs. Temperature
Power vs. Frequency vs. Temperature
21
28.5
-40 °C
25 °C
85 °C
5
30
25
28GHz
20
29GHz
15
30GHz
10
31GHz
5
0
0
-1 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1
Control Voltage (V)
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
0
-1 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1
Control Voltage (V)
- 5 of 14 -
0
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TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Typical Performance (cont.)
Id2+Id3 are held constant throughout the test.
Power vs. Frequency vs. Control Voltage
Gain vs. Frequency vs. Control Voltage
Vd = 5 V, Idq = 330 mA, Vg = - 0.7 V, 25 °C
45
40
35
30
25
20
15
10
5
0
-5
26
22
-0.85V
-0.71V
-0.62V
-0.56V
-0.48V
0.00V
-0.85V
-0.71V
18
-0.62V
14
10
-0.56V
6
-0.48V
2
0.00V
-2
28
28.5
29
29.5
30
Frequency (GHz)
30.5
31
28
28.5
29
29.5
30
Frequency (GHz)
30.5
31
OTOI vs. Frequency vs. Control Voltage
OTOI vs. Pout/Tone vs. Frequency
Vd = 5 V, Idq = 330 mA, Vg = -0.7 V, 25 °C
Vd = 5 V, Idq = 330 mA, Vc = -1.00 V, Vg = -0.7 V, 25 °C
40
12 dBm Pout/Tone
35
OTOI (dBm)
30
OTOI (dBm)
-1.00V
-1.00V
P1dB (dBm)
Gain (dB)
Vd = 5 V, Id = 330 mA, Vg = -0.7 V, 25 C
25
-1.00 V
-0.85 V
-0.71 V
-0.62 V
20
15
10
5
0
28
28.5
29
29.5
30
Frequency (GHz)
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
30.5
31
36
34
32
30
28
26
24
22
20
18
16
28GHz
29GHz
30GHz
31GHz
-2
- 6 of 14 -
0
2
4
6
8
Pout/tone (dBm)
10
12
14
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TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Application Circuit
Vd1
Vc
4541
YYWW
XXXX
RF Input
RF Output
Vg
Vd2 + Vd3
Bias-up Procedure
Bias-down Procedure
Set Vg to -1.5 V
Set Vd1 to 5 V
Set Vd2+Vd3 to 5 V
Set Vc to -1.00 V
Adjust Vg more positive until quiescent Id2+Id3 = 270 mA,
Id1 = 60 mA, Vg ~ -0.7 V Typical
Apply RF signal
Vd1 and Vd2+Vd3 should be separately monitored.
Turn off RF supply
Reduce Vg to -1.5 V
Set Vc to 0 V
Reduce Vd2+Vd3 to 0 V
Reduce Vd1 to 0 V
The TGA4541-SM will be marked with the “4541” designator and a lot code marked below the part designator. The “YY”
represents the last two digits of the year the part was manufactured, the “WW” is the work week, and the “XXXX” is an autogenerated assembly lot number.
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
- 7 of 14 -
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TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Pin Description
Top View
Pin
1, 2, 3, 5, 6, 7, 8, 9,
10, 11, 12, 13, 19, 20,
21, 22, 23, 25, 26, 27,
28, 29, 30, 31, 32, 33,
34, 39, 40
4
Symbol
Description
N/C
No internal connection; must be grounded on PCB.
RF IN
RF Input.
Gate voltage. Bias network is required; see Application Circuit on page 7
as an example.
No internal connection; should be left open.
Drain voltage. Bias network is required; see Application Circuit on page 7
as an example.
Drain voltage. Bias network is required; see Application Circuit on page 7
as an example.
RF Output.
Control voltage. Bias network is required; see Application Circuit on page 7
as an example.
Internally grounded through a resistor; must be grounded on PCB.
Drain voltage. Bias network is required; see Application Circuit on page 7
as an example.
Backside paddles; must be grounded on PCB. Multiple vias should be
employed to minimize inductance and thermal resistance; see Mounting
Configuration on page 12 for suggested footprint.
14
Vg
15, 17, 37
N/C
16
Vd2
18
Vd3
24
RF OUT
35
Vc
36
GND
38
Vd1
41
GND
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
- 8 of 14 -
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TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Applications Information
PC Board Layout
Top RF layer is 0.010” thick Rogers RO3203, єr = 3.02. Metal layers are 1/2-oz
copper.
The pad pattern shown has been developed and tested for optimized assembly at
TriQuint Semiconductor. The PCB land pattern has been developed to
accommodate lead and package tolerances. Since surface mount processes vary
from company to company, careful process development is recommended.
For further technical information, refer to the TGA4541-SM Product Information
page.
C5
C6
C1
C2
Detail is on the next page
C3
C4
R2
R1
C8
C7
C9
C10
Bill of Material
Ref Des
Value
Description
Manufacturer
C1- C4
C5 - C8
C9 - C10
R1- R2
100 pF
1 µF
10 µF
15 Ω
Cap, 0402, 20V, 5%, COG
Cap, 0603, 25V, 5%, X5R
Cap, 0805, 25V, 5%, X5R
Res, 0402, 0.1W, SMD
various
various
various
various
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
- 9 of 14 -
Part Number
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TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Applications Information (cont.)
PC Board Tuning Layout
Dimensions are in millimeters.
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
- 10 of 14 -
Disclaimer: Subject to change without notice
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TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Mechanical Information
Package Information and Dimensions
All dimensions are in millimeters.
This package is lead-free/RoHS-compliant with a copper alloy base (CDA194), and the plating material on the leads is
NiPdAu. It is compatible with both lead-free (maximum 260 °C reflow temperature) and tin-lead (maximum 245 °C reflow
temperature) soldering processes.
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
- 11 of 14 -
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TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Mechanical Information (cont.)
Mounting Configuration
All dimensions are in millimeters.
Notes:
1. Ground vias are critical for the proper performance of this
device. Vias have a drill diameter of 0.25 mm.
Tape and Reel Information
Tape and reel specifications for this part are also available on the TriQuint website in the “Application Notes” section.
Standard T/R size = 500 pieces on a 7 x 0.5” reel.
CARRIER AND COVER TAPE DIMENSIONS
Part
Feature
Cavity
Length
Width
Depth
Pitch
Cavity to Perforation
Length Direction
Cavity to Perforation
Width Direction
Width
Width
Distance Between Centerline
Cover Tape
Carrier Tape
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
- 12 of 14 -
Symbol
Size (in)
Size (mm)
A0
B0
K0
P1
0.248
0.248
0.043
0.472
6.3
6.3
1.1
12.0
P2
0.079
2.0
F
0.295
7.5
C
W
0.561
0.63
14.25
16.0
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TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Product Compliance Information
ESD Information
Solderability
Compatible with the latest version of J-STD-020, Lead
free solder, 260°C
ESD Rating:
Value:
Test:
Standard:
This part is compliant with EU 2002/95/EC RoHS
directive (Restrictions on the Use of Certain Hazardous
Substances in Electrical and Electronic Equipment).
TBD
TBD
Human Body Model (HBM)
JEDEC Standard JESD22-A114
MSL Rating
Level TBD at +260 °C convection reflow
The part is rated Moisture Sensitivity Level TBD at 260°C per
JEDEC standard IPC/JEDEC J-STD-020.
This product also has the following attributes:
 Lead Free
 Halogen Free (Chlorine, Bromine)
 Antimony Free
 TBBP-A (C15H12Br402) Free
 PFOS Free
 SVHC Free
ECCN
US Department of Commerce EAR99
Recommended Soldering Temperature Profile
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
- 13 of 14 -
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TGA4541-SM
Ka-Band Variable Gain Driver Amplifier
Contact Information
For the latest specifications, additional product information, worldwide sales and distribution locations, and information about
TriQuint:
Web: www.triquint.com
Email: [email protected]
Tel:
Fax:
+1.972.994.8465
+1.972.994.8504
For technical questions and application information:
Email: [email protected]
Important Notice
The information contained herein is believed to be reliable. TriQuint makes no warranties regarding the information contained
herein. TriQuint assumes no responsibility or liability whatsoever for any of the information contained herein. TriQuint
assumes no responsibility or liability whatsoever for the use of the information contained herein. The information contained
herein is provided "AS IS, WHERE IS" and with all faults, and the entire risk associated with such information is entirely with
the user. All information contained herein is subject to change without notice. Customers should obtain and verify the latest
relevant information before placing orders for TriQuint products. The information contained herein or any use of such
information does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other intellectual property
rights, whether with regard to such information itself or anything described by such information.
TriQuint products are not warranted or authorized for use as critical components in medical, life-saving, or life-sustaining
applications, or other applications where a failure would reasonably be expected to cause severe personal injury or death.
Preliminary Data Sheet: Rev- 05/08/12
© 2012 TriQuint Semiconductor, Inc.
- 14 of 14 -
Disclaimer: Subject to change without notice
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