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14.5-17.0 GHz GaAs MMIC Power Amplifier
January 2010 - Rev 04-Jan-10
P1070-BD
Chip Device Layout
XP1070-BD
Features
10W Power Amplifier Dual Sided Bias Architecture 17 dB Small Signal Gain +38.5 dBm P1dB Compression Point +40.0 dBm Pulsed Saturated Output Power +46.0 dBm Output Third Order Intercept 100% On-Wafer DC, RF and Output Power Testing 100% Visual Inspection to MIL-STD-883 Method 2010
General Description
Mimix Broadband's three stage 14.5-17.0 GHz GaAs MMIC power amplifier has a small signal gain of 17.0 dB with +46.0 dBm output third order intercept. This MMIC uses Mimix Broadband's GaAs PHEMT device model technology, and is based upon electron beam lithography to ensure high repeatability and uniformity. The chip has surface passivation to protect and provide a rugged part with backside via holes and gold metallization to allow either a conductive epoxy or eutectic solder die attach process. This device is well suited for Military, Space, Microwave Point-to-Point Radio, SATCOM and VSAT applications.
Absolute Maximum Ratings1
Supply Voltage (Vd) Supply Current (Id1,2,3) Gate Bias Voltage (Vg) Input Power (Pin) Storage Temperature (Tstg) Operating Temperature (Ta) Channel Temperature (Tch)1
+8.0 VDC 600,1400,3000 mA +0.3 VDC +33.0 dBm -65 to +165 C -55 to +85 C 175 C
(1) Channel temperature affects a device's MTTF. It is recommended to keep channel temperature as low as possible for maximum life
Electrical Characteristics (Ambient Temperature T = 25 oC)
Parameter Frequency Range (f) Input Return Loss (S11) Output Return Loss (S22) Small Signal Gain (S21) Reverse Isolation (S12) Output Power for 1dB Compression Point (P1dB) Output Third Order Intermods (OIP3) Saturated Output Power (Psat)2 Drain Bias Voltage (Vd1,2,3) Gate Bias Voltage (Vg1,2,3) Supply Current (Id1) (Vd=7.5 V,Vg=-0.8 V Typical) Supply Current (Id2) (Vd=7.5 V, Vg=-0.8 V Typical) Supply Current (Id3) (Vd=7. 5 V, Vg=-0.8 V Typical)
(2) Measured on wafer pulsed.
2
Units GHz dB dB dB dB dB dBm dBm dBm VDC VDC mA mA mA
Min 14.5 -1.5 -
Typ 10.0 10.0 17.0 +/-1.0 60.0 +38.5 +46.0 +39.0 +7.5 -0.8 500 1000 2200
Max 17.0 +7.8 0.0 550 1200 2600
Gain Flatness (delta S21)
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Page 1 of 11
Characteristic Data and Specifications are subject to change without notice. (c)2010 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws.
14.5-17.0 GHz GaAs MMIC Power Amplifier
January 2010 - Rev 04-Jan-10
P1070-BD
Power Amplifier Measurements (On-Wafer1)
XP1070-BD, Vd=4.0 V, Vg=-1.1 V, Id1=263 mA Id2=512 mA, Id3=1011 mA
20 19 18 17
30 20 10 0 -10
XP1070-BD, Vd=4.0 V, Vg=-1.1 V, Id1=263 mA Id2=512 mA, Id3=1011 mA
Gain (dB)
Gain (dB)
16 15 14 13 12 11 10 13.0
-20 -30 -40 -50 -60 -70
13.5
14.0
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
-80 10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
Frequency (GHz)
Frequency (GHz)
XP1070-BD, Vd=4.0 V, Vg=-1.1 V, Id1=263 mA Id2=512 mA, Id3=1011 mA
0 -5
XP1070-BD, Vd=4.0 V, Vg=-1.1 V, Id1=263 mA Id2=512 mA, Id3=1011 mA
0 -5
Input Return Loss (dB)
-15 -20 -25 -30 -35 13.0
Input Return Loss (dB)
13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0
-10
-10 -15 -20 -25 -30 -35 10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
Frequency (GHz)
Frequency (GHz)
XP1070-BD, Vd=4.0 V, Vg=-1.1 V, Id1=263 mA Id2=512 mA, Id3=1011 mA
0 0
XP1070-BD, Vd=4.0 V, Vg=-1.1 V, Id1=263 mA Id2=512 mA, Id3=1011 mA
-5
-5
Output Return Loss (dB)
-10
Output Return Loss (dB)
13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0
-10
-15
-15
-20
-20
-25
-25
-30 13.0
-30 10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
Frequency (GHz)
Frequency (GHz)
Note [1] Measurements - On-Wafer S-Parameters have been taken using reduced bias conditions as shown. Measurements are referenced 150 um in from RF In/Out pad edge. For optimum performance Mimix T-pad transition and tuned output matching network is recommended. For additional information see the Mimix "T-Pad Transition" application note. Contact technical sales for output matching network information.
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Page 2 of 11
Characteristic Data and Specifications are subject to change without notice. (c)2010 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws.
14.5-17.0 GHz GaAs MMIC Power Amplifier
January 2010 - Rev 04-Jan-10
P1070-BD
Power Amplifier Measurements (On-Wafer1) (cont.)
43 42
XP1070-BD, Vd=7.0 V, Vg=-0.8V, Pulsed
40 36
XP1070-BD, Vd=7.0 V, Vg=-0.8V, Pulsed
40 39 38 37 36 35 34 33 13.0
Pout (dBm), Gain (dB) & PAE (%)
41
32 28
Pout
Output Power Psat (dBm)
24 20
Gain
16 12 8
PAE
4
13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0
0 8 9 10 11 12 13 14 15 16 17 18 19 20
Frequency (GHz)
Input Power (dBm)
XP1070-BD, Vd=7.0 V, Vg=-0.9V Pulsed Load Pull Optimal Pout
42
40 39
XP1070-BD, Vd=7.0 V, Vg=-0.9V Pulsed Load Pull Optimal PAE
Power Added Efficiency (%)
14.0 14.5 15.0 15.5 16.0 16.5
41
Output Power Psat (dBm)
38 37 36 35 34 33 32 31
40
39
38
37 13.5
30 13.5
14.0
14.5
15.0
15.5
16.0
16.5
Frequency (GHz)
Frequency (GHz)
Note [1] Measurements - On-Wafer Output Power data has been taken using bias conditions as shown. Measurements are referenced 150 um in from RF In/Out pad edge. For optimum performance Mimix T-pad transition and tuned output matching network is recommended. For additional information see the Mimix "T-Pad Transition" application note. Contact technical sales for output matching network information.
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Page 3 of 11
Characteristic Data and Specifications are subject to change without notice. (c)2010 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws.
14.5-17.0 GHz GaAs MMIC Power Amplifier
January 2010 - Rev 04-Jan-10
P1070-BD
Power Amplifier Measurements (Test Fixture1)
25 23 21
XP1070-BD, Vd=7.5 V, Vgs=-0.9 V, Id=3556 mA
0 -10 -20
XP1070-BD, Vd=7.5 V, Vgs=-0.9 V, Id=3556 mA
Reverse Isolation (dB)
19
Gain (dB)
17 15 13 11 9 7 5 13.0 +85C -40C +25C
-30 -40 -50 -60 -70 -80 13.0 +85C -40C +25C
13.5
14.0
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
13.5
14.0
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
Frequency (GHz)
Frequency (GHz)
XP1070-BD, Vd=7.5 V, Vgs=-0.9 V, Id=3556 mA
0 -5
0
XP1070-BD, Vd=7.5 V, Vgs=-0.9 V, Id=3556 mA
Output Return Loss (dB)
+85C -40C +25C
Input Return Loss (dB)
-10 -15 -20 -25 -30 -35
-5
-10
-15
+85C
-20
-40C
+25C
13.0
13.5
14.0
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
13.0
13.5
14.0
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
Frequency (GHz)
Frequency (GHz)
XP1070-BD, Vd=7.5V, Vg=-0.9 V Id1=517mA, Id2=1045 mA, Id3=1994 mA
43 42
43 42 41
XP1070-BD, Vd=7.5V, Vg=-0.9 V, Id1=517mA Id2=1045 mA, Id3=1994 mA, Pin=24 dBm
Output Power P1dB (dBm)
Output Power Psat (dBm)
41 40 39 38 37 36 35 34 33 14.0 +85C -40C +25C
40 39 38 37 36 35 34 33 14.0 +85C -40C +25C
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
Frequency (GHz)
Frequency (GHz)
Note [1] Measurements - Test Fixture data includes all bond wire parasitics, uncompensated RF In/Out Mimix T-Pad transitions and RF ceramic circuit losses. For Output Power curves RF In/Out circuit losses have been removed.
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Page 4 of 11
Characteristic Data and Specifications are subject to change without notice. (c)2010 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws.
14.5-17.0 GHz GaAs MMIC Power Amplifier
January 2010 - Rev 04-Jan-10
P1070-BD
Power Amplifier Measurements (Test Fixture1) (cont.)
XP1070-BD, Vd=Varied, Vg=-0.9 V Id1=514 mA, Id2=1021 mA, Id3=1974 mA
23 22
XP1070-BD, Vd=Varied, Vg=-0.9 V Id1=514 mA, Id2=1021 mA, Id3=1974 mA
43 42
20
Output Power P1dB (dBm)
Vd=6.5 V 14.5 15.0 Vd=7.0 V 15.5 Vd=7.5 V 16.0 16.5 Vd=7.8 V 17.0 17.5 18.0
21
41 40 39 38 37 36 35 34 33 14.0 14.5 15.0 Vd=6.5 V 15.5 Vd=7.0 V 16.0 16.5 Vd=7.5 V 17.0 Vd=7.8 V 17.5 18.0
Gain (dB)
19 18 17 16 15 14 13 14.0
Frequency (GHz)
Frequency (GHz)
XP1070-BD, Vd=Varied, Vg=-0.9 V, Id1=514 mA Id2=1021 mA, Id3=1974 mA, Pin=24 dBm
43 42 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 14.0
XP1070-BD, Vd=Varied, Vg=-0.9 V Id1=514 mA, Id2=1021 mA, Id3=1974 mA
Output Power Psat (dBm)
41 40 39 38 37 36 35 34 33 14.0 Vd=6.5 V 14.5 15.0 Vd=7.0 V 15.5 Vd=7.5 V 16.0 16.5 Vd=7.8 V 17.0 17.5 18.0
Power Added Efficiency PAE (%)
Vd=6.5 V
Vd=7.0 V
Vd=7.5 V
Vd=7.8 V
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
Frequency (GHz)
Frequency (GHz)
XP1070-BD, Vd=7.5 V, Vg=-0.9 V Id1=549 mA, Id2=1108 mA, Id3=2092 mA
50
50
XP1070-BD, Vd=7.5 V, Vg=-0.9 V Id1=549 mA, Id2=1108 mA, Id3=2092 mA
Output Third Order Intercept (dBm)
49 48 47 46 45 44 43 42 41 40 14.0 21 dBm scl 22 dBm scl 23 dBm scl 24 dBm scl 25 dBm scl
Output Third Order Intercept (dBm)
49 48 47 46 45 44 43 42 41 40 14.0 15 dBm scl 16 dBm scl 17 dBm scl 18 dBm scl 19 dBm scl 20 dBm scl
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
Frequency (GHz)
Frequency (GHz)
Note [1] Measurements - Test Fixture data includes all bond wire parasitics, uncompensated RF In/Out Mimix T-Pad transitions and RF ceramic circuit losses. For Gain and Output Power curves RF In/Out circuit losses have been removed.
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Page 5 of 11
Characteristic Data and Specifications are subject to change without notice. (c)2010 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws.
14.5-17.0 GHz GaAs MMIC Power Amplifier
January 2010 - Rev 04-Jan-10
P1070-BD
Power Amplifier Measurements (Test Fixture1) (cont.)
XP1070-BD, Vd=7.5 V, Vg=Varied Pulsed Duty Cycle 1% with 1ms Period
44 43 42 Vg=-0.8 V Vg=-0.9 V Vg=-1.0 V Vg=-1.1 V
Output Power Psat (dBm)
41 40 39 38 37 36 35 34 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5
Frequency (GHz)
XP1070-BD, Vd=7.5 V, Vg=Varied Pulsed Duty Cycle 1% with 1ms Period
24 23 22 21 Vg=-0.8 V Vg=-0.9 V Vg=-1.0 V Vg=-1.1 V
XP1070-BD, Vd=7.5 V, Vg=Varied Pulsed Duty Cycle 1% with 1ms Period
30 28
Vg=-0.8 V Vg=-0.9 V Vg=-1.0 V Vg=-1.1 V
Power Added Efficiency PAE (%)
13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5
26 24 22 20 18 16 14 13.0
Gain (dB)
20 19 18 17 16 15 14 13.0
13.5
14.0
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
18.5
Frequency (GHz)
Frequency (GHz)
Note [1] Measurements - Test Fixture data includes all bond wire parasitics, uncompensated RF In/Out Mimix T-Pad transitions and RF ceramic circuit losses. For Gain and Output Power curves RF In/Out circuit losses have been removed.
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Page 6 of 11
Characteristic Data and Specifications are subject to change without notice. (c)2010 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws.
14.5-17.0 GHz GaAs MMIC Power Amplifier
January 2010 - Rev 04-Jan-10
P1070-BD
S-Parameters (On Wafer1)
Typcial S-Parameter Data for XP1070-BD Vd=4.0 V, Id=1786 mA Frequency (GHz) 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 20 0 21.0 22.0 23.0 24.0 25.0 S11 (Mag) 0.979 0.968 0.952 0.912 0.834 0.784 0.766 0.728 0.602 0.411 0.299 0.160 0.114 0.430 0.617 0.768 0 768 0.864 0.899 0.918 0.923 0.930 S11 (Ang) -81.85 -99.74 -116.74 -138.59 -158.76 -178.63 157.16 124.35 85.61 50.43 25.49 -10.17 117.54 69.62 37.52 12.75 12 75 -10.22 -28.09 -41.49 -53.14 -63.11 S21 (Mag) 0.0030 0.0060 0.0019 0.0095 0.0547 0.1712 0.4480 1.0955 2.5268 5.6731 6.8694 6.1446 5.7057 2.5051 0.9329 0.3785 0 3785 0.1073 0.0199 0.0006 0.0005 0.0003 S21 (Ang) 82.63 14.67 -30.40 48.88 -24.29 -108.04 163.37 66.40 -41.17 -170.07 37.93 -94.40 117.75 -37.72 -164.85 63.61 63 61 -81.73 128.02 84.33 -104.89 -7.30 S12 (Mag) 0.0001 0.0001 0.0002 0.0001 0.0001 0.0006 0.0004 0.0003 0.0005 0.0006 0.0008 0.0012 0.0010 0.0006 0.0001 0.0009 0 0009 0.0008 0.0008 0.0007 0.0006 0.0002 S12 (Ang) -77.25 17.17 -135.47 -129.90 -92.99 -136.07 133.67 85.05 106.25 -6.09 -141.02 78.29 -46.73 123.94 -122.44 -97.43 97 43 126.80 163.33 125.73 -106.36 -41.74 S22 (Mag) 0.895 0.890 0.890 0.883 0.873 0.857 0.834 0.795 0.735 0.555 0.117 0.108 0.349 0.316 0.188 0.396 0 396 0.660 0.790 0.834 0.859 0.877 S22 (Ang) -140.51 -158.59 -175.43 168.22 152.00 135.37 117.26 96.00 67.89 19.38 -55.17 170.71 123.21 59.31 58.31 50.22 50 22 -2.60 -52.87 -89.66 -117.02 -137.73
Note [1] S-Parameters - On-Wafer S-Parameters have been taken using reduced bias conditions as shown. Measurements are referenced 150 um in from RF In/Out pad edge.
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Page 7 of 11
Characteristic Data and Specifications are subject to change without notice. (c)2010 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws.
14.5-17.0 GHz GaAs MMIC Power Amplifier
January 2010 - Rev 04-Jan-10
0.128 0.712 (0.005) (0.028)
2 3
P1070-BD
1.370 (0.054)
4
Mechanical Drawing
4.200 (0.165)
2.155 2.424 (0.085) (0.095)
5 6
3.223 (0.127)
7
XP1070-BD
2.099 (0.083)
1
8
2.099 (0.083)
0.0
14
13
12
11
10
9
0.0 0.128 0.712 (0.005) (0.028)
1.370 (0.054)
2.155 2.424 (0.085) (0.095)
3.223 (0.127)
4.000 (0.157)
(Note: Engineering designator is 15MPA0964) Units: millimeters (inches) Bond pad dimensions are shown to center of bond pad. Thickness: 0.075 +/- 0.010 (0.0033 +/- 0.0004), Backside is ground, Bond Pad/Backside Metallization: Gold Most DC Bond Pads are 0.100 x 0.100 (0.004 x 0.004). All RF and Vd1,3 Bond Pads are 0.100 x 0.200 (0.004 x 0.008) Bond pad centers are approximately 0.109 (0.004) from the edge of the chip. Dicing tolerance: +/- 0.005 (+/- 0.0002). Approximate weight: 10.416 mg. Bond Pad #1 (RF In) Bond Pad #5 (Vd2A) Bond Pad #9 (Vd3B) Bond Pad #13 (Vd1B) Bond Pad #2 (Vg1A) Bond Pad #6 (Vg3A) Bond Pad #10 (Vg3B) Bond Pad #14 (Vg1B) Bond Pad #3 (Vd1A) Bond Pad #7 (Vd3A) Bond Pad #11 Vd2B) Bond Pad #4 (Vg2A) Bond Pad #8 (RF Out) Bond Pad #12 (Vg2B)
Bias Arrangement (See App Notes [1], [2] and [3])
Vg1 Vg2 Vg3
6 7
XP1070-BD
Vd3
2
3
4
5
RF In
1
8
RF Out
14
13
12
11
10
9
Vd1
Vd2
Vg3
Vd3
Layout for reference only - It is recommended to bias output stage from both sides.
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Page 8 of 11
Characteristic Data and Specifications are subject to change without notice. (c)2010 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws.
14.5-17.0 GHz GaAs MMIC Power Amplifier
January 2010 - Rev 04-Jan-10
App Note [1] Biasing - It is recommended to separately bias each amplifier stage Vd1 through Vd3 at Vd(1,2,3)=7.5V with Id1=500mA, Id2=1000mA and Id3=2200mA. Separate biasing is recommended if the amplifier is to be used in a linear application or at high levels of saturation, where gate rectification will alter the effective gate control voltage. For non-critical applications it is possible to parallel all stages and adjust the common gate voltage for a total drain current Id(total)=3700mA. [Linear Applications] - For applications where the amplifier is being used in linear
P1070-BD
operation, where best IM3 (Third-Order Intermod) performance is required at more than 5dB below P1dB, it is also recommended to use active gate biasing to keep the drain currents constant as the RF power and temperature vary; this gives the best performance and most reproducible results. Depending on the supply voltage available and the power dissipation constraints, the bias circuit may be a single transistor or a low power operational amplifier, with a low value resistor in series with the drain supply used to sense the current. The gate voltage of the pHEMT is controlled to maintain correct drain current compensating for changes over temperature.
[Saturated Applications] - For applications where the amplifier RF output power is saturated, the optimum drain current will vary with RF drive and each amplifier stage is best operated at a constant gate voltage. Significant gate currents will flow at saturation and bias circuitry must allow for drain current growth under this condition to achieve best RF output power and power added efficiency. Additionally, if the input RF power level will vary significantly, a more negative gate voltage will result in less die heating at lower RF input drive levels where the absence of RF cooling becomes significant. Note under this bias condition, gain will then vary with RF drive. NOTE! - For any application it is highly recommended to bias the output amplifier stage from both sides for best RF and thermal performance. CAUTION! - Also, make sure to properly sequence the applied voltages to ensure negative gate bias (Vg1,2,3) is available before applying the positive drain supply (Vd1,2,3). Additionally, it is recommended that the device gates are protected with Silicon diodes to limit the applied voltage. App Note [2] Bias Arrangement [For Individual Stage Bias] (recommended for linear/saturated applications) - Each DC pad (Vd1,2,3 and Vg1,2,3) needs to have DC bypass
capacitance (100-200 pF) as close to the device as possible. Additional DC bypass capacitance (1 nF and 3.3 uF) is also recommended. All DC pads have been tied together on chip and device can be biased from either side. [For Parallel Stage Bias] (general applications) - The same as Individual Stage Bias but all the drain or gate pad DC bypass capacitors (100-200 pF) are tied together at one point after bypass capacitance. Additional DC bypass capacitance (1 nF and 3.3 uF) is also recommended to all DC or combination (if gate or drains are tied together) of DC bias pads. All DC pads have been tied together on chip and can be biased from either side.
NOTE! In either arrangement, for most stable performance all unused DC pads must also be bypassed with at least 100-200 pf capacitance. App Note [3] Material Stack-Up - In addition to the practical aspects of bias and bias arrangement, device base
material stack-up also must be considered for best thermal performance. A well thought out thermal path solution will improve overall device reliability, RF performance and power added efficiency. The photo shows a typical high power amplifier carrier assembly. The material stack-up for this carrier is shown below. This stack-up is highly recommended for most reliable performance however, other materials (i.e. eutectic solder vs epoxy, copper tungsten/copper moly rib, etc.) can be considered/possibly used but only after careful review of material thermal properties, material availability and end application performance requirements.
MMIC, 3mil Diemat DM6030HK Epoxy, ~1mil MOLY Rib, 5mil, Au plated Alumina Substrate AuSn Eutectic Solder
MOLY Carrier, 25mil Au plated Copper Block
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Page 9 of 11
Characteristic Data and Specifications are subject to change without notice. (c)2010 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws.
14.5-17.0 GHz GaAs MMIC Power Amplifier
January 2010 - Rev 04-Jan-10
P1070-BD
MTTF Graphs
These numbers were calculated based upon accelerated life test information received from the fabricating foundry and extensive thermal modeling/ finite element analysis done at Mimix Broadband. The values shown here are only to be used as a guideline against the end application requirements and only represent reliability information under one bias condition. Ultimately bias conditions and resulting power dissipation along with the practical aspects, i.e. thermal material stack-up, attach method of device placement are the key parts in determining overall reliability for a specific application, see previous pages. If the data shown below does not meet your reliability requirements or if the bias conditions are not within your operating limits please contact technical sales for additional information.
XP1070-BD Vd=7.5 V, Id1=500 mA Id2=1000 mA, Id3=2200 mA
1.0E+08 1.0E+07 1.0E+06
FITS
XP1070-BD Vd=7.5 V, Id1=500 mA Id2=1000 mA, Id3=2200 mA
1.00E+07 1.00E+06 1.00E+05 1.00E+04 1.00E+03 1.00E+02 1.00E+01 55.0
MTTF (hours )
1.0E+05 1.0E+04 1.0E+03 1.0E+02 55.0
65.0
75.0
85.0
95.0
105.0
115.0
125.0
65.0
75.0
85.0
95.0
105.0
115.0
125.0
Backplate Temperature (deg C)
Backplate Temperature (deg C)
XP1070-BD Vd=7.5 V, Id1=500 mA Id2=1000 mA, Id3=2200 mA
3.0 2.9 2.8 2.7
Rth (deg C/W)
Tch (deg C)
XP1070-BD Vd=7.5 V, Id1=500 mA Id2=1000 mA, Id3=2200 mA
210 200 190 180 170 160 150 140 130 120
2.6 2.5 2.4 2.3 2.2 2.1 2.0 55.0 65.0 75.0 85.0 95.0 105.0 115.0 125.0
110 55.0
65.0
75.0
85.0
95.0
105.0
115.0
125.0
Backplate Temperature (deg C)
Backplate Temperature (deg C)
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
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Characteristic Data and Specifications are subject to change without notice. (c)2010 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws.
14.5-17.0 GHz GaAs MMIC Power Amplifier
January 2010 - Rev 04-Jan-10
P1070-BD
Handling and Assembly Information
CAUTION! - Mimix Broadband MMIC Products contain gallium arsenide (GaAs) which can be hazardous to the human body and the environment. For safety, observe the following procedures: * Do not ingest. * Do not alter the form of this product into a gas, powder, or liquid through burning, crushing, or chemical processing as these by-products are dangerous to the human body if inhaled, ingested, or swallowed. * Observe government laws and company regulations when discarding this product. This product must be discarded in accordance with methods specified by applicable hazardous waste procedures. Life Support Policy - Mimix Broadband's products are not authorized for use as critical components in life support devices or systems without the express written approval of the President and General Counsel of Mimix Broadband. As used herein: (1) Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. (2) A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. ESD - Gallium Arsenide (GaAs) devices are susceptible to electrostatic and mechanical damage. Die are supplied in antistatic containers, which should be opened in cleanroom conditions at an appropriately grounded anti-static workstation. Devices need careful handling using correctly designed collets, vacuum pickups or, with care, sharp tweezers. Die Attachment - GaAs Products from Mimix Broadband are 0.100 mm (0.004") thick and have vias through to the backside to enable grounding to the circuit. Microstrip substrates should be brought as close to the die as possible. The mounting surface should be clean and flat. If using conductive epoxy, recommended epoxy is Die Mat DM6030HK or an epoxy with >52 W/m K thermal conductivity cured in a nitrogen atmosphere per manufacturer's cure schedule. Apply epoxy sparingly to avoid getting any on to the top surface of the die. An epoxy fillet should be visible around the total die periphery. For additional information please see the Mimix "Epoxy Specifications for Bare Die" application note. If eutectic mounting is preferred, then a fluxless gold-tin (AuSn) preform, approximately 0.001 thick, placed between the die and the attachment surface should be used. A die bonder that utilizes a heated collet and provides scrubbing action to ensure total wetting to prevent void formation in a nitrogen atmosphere is recommended. The gold-tin eutectic (80% Au 20% Sn) has a melting point of approximately 280 C (Note: Gold Germanium should be avoided). The work station temperature should be 310 C +/- 10 C. Exposure to these extreme temperatures should be kept to minimum. The collet should be heated, and the die pre-heated to avoid excessive thermal shock. Avoidance of air bridges and force impact are critical during placement. Wire Bonding - Windows in the surface passivation above the bond pads are provided to allow wire bonding to the die's gold bond pads. The recommended wire bonding procedure uses 0.076 mm x 0.013 mm (0.003" x 0.0005") 99.99% pure gold ribbon with 0.5-2% elongation to minimize RF port bond inductance. Gold 0.025 mm (0.001") diameter wedge or ball bonds are acceptable for DC Bias connections. Aluminum wire should be avoided. Thermo-compression bonding is recommended though thermosonic bonding may be used providing the ultrasonic content of the bond is minimized. Bond force, time and ultrasonics are all critical parameters. Bonds should be made from the bond pads on the die to the package or substrate. All bonds should be as short as possible.
Ordering Information
Part Number for Ordering XP1070-BD-000V XP1070-BD-EV1
Description RoHS compliant die packed in vacuum release gel packs XP1070-BD evaluation module
Appropriate precautions in handling, packaging and testing devices must be observed.
Caution: ESD Sensitive
Proper ESD procedures should be followed when handling this device.
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
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Characteristic Data and Specifications are subject to change without notice. (c)2010 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws.

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