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WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX:408-577-6620 • e-mail:sales@wj.com • Web site: www.wj.com February 2002
The Communications Edge
™
AH4
Product Description
The AH4 is a high dynamic range amplifier
packaged in a Land Grid Array (LGA) surface
mount package for applications thru 6 GHz.
The combination of low noise figure and high
output IP3 at the same bias point makes it ideal
for receiver and transmitter applications. The
AH4 achieves +41 dBm OIP3 at a mounting
temperature of 80˚C with an associated MTBF
of >100 years
4
. The package is a 3 X 3 Land
Grid Array. All devices are 100% RF and DC
tested. The product is targeted for applications
in the W-LAN and UNII bands where high linearity is required.
Product Features
•
250-6000 MHz
•
+
41 dBm Output IP3
•
2.7 dB Noise Figure
•
13.5 dB Gain
•
+
21 dBm P1dB
•
MTBF >100 Years
•
3 X 3 LGA SMT Package
•
Single +5 Bias Supply
Functional Diagram
Input
Output
(bias)
All other pins grounded
Pin 1 indicator
High Dynamic Range Amplifier
Absolute Maximum Ratings
Parameter Rating
Operating Case Temperature -40 to +80°C
Storage Temperature -55 to +125 °C
Junction Temperature +155°C
Supply Voltage +6.0 V
Input RF Power (continuous) +10 dBm
Operation of this device above any of these parameters may cause permanent damage.
Ordering Information
Part No. Description
AH4 High Dynamic Range Amplifier
(Available in tape and reel)
TOP VIEW
Specifications
Parameter Units Min. Typical Max.
Frequency Range GHz 0.25-6
S21 - Gain dB 12.4 13.5
S11 - Input Return Loss dB -6
S22 - Output Return Loss dB -15
Output IP3 dBm +37 +41
Output P1dB dBm +21
Noise Figure dB 2.7
Operating Current Range mA 120 150 150
Supply Voltage V 5
Test conditions unless otherwise noted.
1.T = 22°C, Vdd = 5.0 V, Frequency = 800 MHz, 50 Ω system.
2. OIP3 measured with two tones at an output power of 5 dBm/tone separated by 10 MHz.The
suppression on the largest IM3 product is used to calculate the OIP3 using a 2:1 slope rule.
3. Degradation of OIP3 occurs at low temperatures. Minimum typical OIP3 at -40˚C is +35 dBm.
4. MTBF calculated with channel temperature at 155˚C.
Typical Parameters
Parameter Units Typical
Frequency GHz 5.8
S21 dB 9.3
S11 dB -15.5
S22 dB -16.2
Output IP3 dBm +38.5
Output P1dB dBm +21.2
Noise Figure dB 5.6
Typical parameters reflect performance in an application circuit..
Actual Size
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WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX:408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com February 2002
AH4
Performance Charts (Vds = 5.0 V, Ids = 150 mA,T = 22°C, unmatched device in a 50 ohm system)
OIP3 (dBm)
Frequency (GHz)
012
3.3 V
3.3 V
5.0 V
5.0 V
34 65
OIP3 vs. Frequency
50
45
40
35
30
25
Gain vs. Frequency/Temperature
Frequency (GHz)
Frequency (GHz)
0231456
0123 546
25
15
20
0
5
10
MTBF vs. Temperature Return Loss vs. Frequency
Mounting Temperature (¡C)
0 20 40 60 10080 120 140
MTBF (Hrs)
10
11
10
9
10
7
10
5
10
3
Noise Figure vs. Frequency
S-Parameters
Noise Figure (dB)Return Loss (dB)
Gain (dB)
Frequency (GHz)
0123456
4
5
6
3
2
1
-10
-5
0
-15
-20
-25
-30
Frequency (GHz)
Start 0.1; Stop 6.0
S11
6.0
4.5
3.0
1.5
0.1
S22
S22
S11
OIP3 (dBm)
Temperature (C)
-50 -25 0 25 50 10075
OIP3 vs. Temperature
43
37
38
39
40
41
42
Output Power (dBm)
OIP3 vs. Power Out
2468 1210 14 16
OIP3 (dBm)
45
40
35
30
25
20
Frequency = 800 MHz
Frequency = 800 MHz
85¡C
-40¡C
Room
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WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX:408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com February 2002
Application Circuit: 5.8 GHz
S-Parameters
Typical Performance (50 Ohm System)
Frequency 5.8 GHz
Magnitude S21 9.3 dB
Magnitude S11 -15.5 dB
Magnitude S22 -16.2 dB
OIP3 38.5 dBm
Noise Figure 5.6 dB
Bias Vds = 5 V, Id = 140 mA
RO-4003 Board Layout (T = 20 Mil)
Schematic
AH4
RF OUT
RF IN
Output
Matching
Network
Input
Matching
Network
DC 5 V
C = 1.0 pF
L = 6.8 nH
Frequency (GHz)
Magnitude (dBm)
5.5 5.6 5.7 5.8 5.9 6
10
0
-10
-20
-30
S21
S11
S22
S12
154
80 95
120
286
190
GND
0603 Package
C = 1.0 pF
0603 Package
C = 9.1 pF
W = 46
All dimensions in mils
0603 Package
C = 9.1 pF
0603 Package
L = 6.8 nH
+5 V
INPUT OUTPUT
H4
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WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX:408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com February 2002
AH4
Outline Drawing
Land Pattern
Mounting Configuration
Specifications and information are subject to change without notice.
Caution! ESD sensitive device.
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WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX:408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com February 2002
AH4
T ypical Test Data
S-Parameters (Vds = 5.0 V, Ids = 150 mA, T = 22˚C, unmatched device in a 50 ohm system)
Freq (MHz) S11 (Mag) S11 (Ang) S21 (Mag) S21 (Ang) S12 (Mag) S12 (Ang) S22 (Mag) S22 (Ang)
0.100 0.57451 -36.7211 6.22510 158.863 0.08154 25.7213 0.29530 -50.4581
0.500 0.39012 -52.6403 5.05950 138.763 0.09253 -14.3986 0.11428 -49.7803
1.000 0.43598 -79.3707 4.62450 105.839 0.09057 -37.7971 0.11655 -42.2307
1.500 0.49058 -107.430 4.29160 66.9102 0.09057 -65.5168 0.09396 -49.3091
2.000 0.50663 -130.830 3.92950 33.0265 0.08953 -88.7364 0.09730 -82.7912
2.500 0.53833 -152.040 3.53160 -0.02812 0.08675 -111.803 0.13147 -99.6609
3.000 0.58922 -166.600 3.14930 -30.6987 0.08383 -133.880 0.14577 -96.0661
3.500 0.61700 -177.600 2.87010 -60.0034 0.08275 -154.475 0.12467 -101.940
4.000 0.60784 168.290 2.67170 -89.5910 0.08172 -177.290 0.11160 -138.221
4.500 0.61721 151.660 2.45240 -120.411 0.07608 160.906 0.17744 -159.220
5.000 0.64437 140.340 2.20659 -148.853 0.06934 141.869 0.22888 -156.050
5.500 0.66196 134.750 2.04880 -175.280 0.06524 123.875 0.22484 -152.180
6.000 0.65930 123.910 1.96780 156.702 0.06418 105.131 0.18699 -166.460
S-Parameters (Vds = 3.3 V, Ids = 150 mA, T = 22˚C, unmatched device in a 50 ohm system)
Freq (MHz) S11 (Mag) S11 (Ang) S21 (Mag) S21 (Ang) S12 (Mag) S12 (Ang) S22 (Mag) S22 (Ang)
0.100 0.57806 -36.8721 6.16670 159.023 0.07853 26.3833 0.25361 -58.0261
0.500 0.38854 -52.8703 5.00720 139.047 0.08944 -13.5516 0.08258 -72.7803
1.000 0.43468 -79.3207 4.58560 106.424 0.08787 -36.4471 0.07604 -59.9507
1.500 0.48946 -107.290 4.26290 67.5402 0.08797 -63.9678 0.05020 -73.4551
2.000 0.50686 -130.680 3.90720 33.9035 0.08807 -86.5774 0.07310 -116.030
2.500 0.53901 -151.950 3.51590 1.06988 0.08630 -109.709 0.11090 -124.210
3.000 0.58968 -166.440 3.14180 -29.5557 0.08398 -130.864 0.11302 -116.000
3.500 0.61834 -177.220 2.86510 -58.8084 0.08310 -151.652 0.08809 -125.850
4.000 0.60785 168.450 2.66060 -88.2250 0.08316 -174.304 0.10005 -168.450
4.500 0.61898 151.760 2.44380 -118.810 0.07827 164.379 0.17247 -177.590
5.000 0.64598 140.520 2.20609 -147.007 0.07301 144.508 0.20946 -169.910
5.500 0.66137 134.970 2.05130 -173.437 0.06866 127.571 0.19151 -164.990
6.000 0.66119 124.160 1.96820 158.438 0.06887 108.238 0.16086 177.189
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WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX:408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com February 2002
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