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
TM
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 80C 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 lin-
earity 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 +80C
Storage Temperature
-55 to +125 C
Junction Temperature
+155C
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 = 22C, Vdd = 5.0 V, Frequency = 800 MHz, 50
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 -40C is +35 dBm.
4. MTBF calculated with channel temperature at 155C.
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
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 = 22C, unmatched device in a 50 ohm system)
OIP3 (dBm)
Frequency (GHz)
0
1
2
3.3 V
3.3 V
5.0 V
5.0 V
3
4
6
5
OIP3 vs. Frequency
50
45
40
35
30
25
Gain vs. Frequency/Temperature
Frequency (GHz)
Frequency (GHz)
0
2
3
1
4
5
6
0
1
2
3
5
4
6
25
15
20
0
5
10
MTBF vs. Temperature
Return Loss vs. Frequency
Mounting Temperature (C)
0
20
40
60
100
80
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)
0
1
2
3
4
5
6
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
100
75
OIP3 vs. Temperature
43
37
38
39
40
41
42
Output Power (dBm)
OIP3 vs. Power Out
2
4
6
8
12
10
14
16
OIP3 (dBm)
45
40
35
30
25
20
Frequency = 800 MHz
Frequency = 800 MHz
85C
-40C
Room
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
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.
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
Typical Test Data
S-Parameters (Vds = 5.0 V, Ids = 150 mA, T = 22C, 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 = 22C, 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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