WJ Company AH4 Datasheet
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
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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