AL108-338 Features 3.2-3.8 Fixed Wireless Applications Adjustable
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GaAs PHEMT Switchable Gain
AL108-338 Features
3.2-3.8 Fixed Wireless Applications Adjustable Gain Output Power Output Noise Figure Single Supply Input Output Matched
Description
AL108-338 designed 3.2-3.8 WLAN applications. leadless surface mount package houses GaAs PHEMT MMIC that yields noise, good match, high gain powerful performance. Powered single supply, also offers gain adjustment range.
Absolute Maximum Ratings
Characteristic Input Power Bias Voltage Storage Temperature Operating Temperature Value Max. +85°C +150°C
Electrical Specifications 25°C (3.2-3.8 GHz)
Control Voltage Bias Voltage
Parameter Gain Output Output Noise Figure Reverse Isolation Input VSWR Output VSWR System System Condition Frequency Min. Typ. 1.5:1 1.5:1 2.0:1 2.0:1 Max. Unit
Control Voltage Bias Voltage
Parameter Gain Output Output Noise Figure Reverse Isolation Input VSWR Output VSWR System System Condition Frequency Min. Typ. 1.5:1 1.5:1 2.0:1 2.0:1 Max. Unit
Alpha Industries, Inc. [978] 241-7000 [978] 241-7906 Email sales@alphaind.com www.alphaind.com
Specifications subject change without notice. 1/02A
GaAs PHEMT Switchable Gain
AL108-338
Typical Performance Data 25°C
Gain (Low)
Gain (dB),POUT (dBm)
POUT (dBm)
Gain (dB),POUT (dBm)
Gain (High)
POUT (dBm)
(dBm)
(dBm)
Gain Output Power (Low Gain mode)
High Gain State
Gain Output Power (High Gain mode)
Gain (dB)
VSWR
Gain State
Output (Low Gain) Input (Low Gain) Output (High Gain)
Input (High Gain)
Frequency (GHz)
Frequency (GHz)
Gain Frequency
Gain
VSWR Frequency
Evaluation Board
0.850 Voltage Control Bias Voltage
(dB)
High Gain
Input
0.018 0.850 Output
Frequency (GHz)
Noise Figure Frequency
Dimensions inches.
Alpha Industries, Inc. [978] 241-7000 [978] 241-7906 Email sales@alphaind.com www.alphaind.com
Specifications subject change without notice. 1/02A
GaAs PHEMT Switchable Gain
AL108-338
(Top View)
Gain Control Bias Voltage 1000
Package Outline (Bottom View)
0.040 TYP. 0.026 TYP. 1000
Input
0.157
Output 0.013 TYP. 0.157 0.014 TYP.
Ground connected paddle bottom.
Truth Table
Gain High Gain
Typical S-Parameters (Control Voltage 0/+5
Gain State Freq. (GHz) S11a 0.4417 S21a 2.26 0.0054 S12a 25.28 S22a High Gain State S11a 2.2489 S21a 65.05 0.0055 S12a 91.43 97.84 69.36 70.40 S22a
0.0531 65.99 0.1204 91.60 0.1362 14.12 0.1651 -29.48 0.1572 13.82 0.4082 0.5055 4.29 -4.96
0.1093 132.60 0.0081 1.3032 -101.06 0.0042 2.5615 153.17 0.0024 3.7729 53.89 0.0059 2.9632 -128.83 0.0055 1.9123 157.00 0.0063 1.1534 92.88 0.6649 35.33
0.2937 -93.69
0.5023 11.44 0.3677 -60.06 0.1954 -1.39
0.2221 -171.21 0.0013 -19.22 0.2935 -93.51 0.2265 -86.97 0.346 0.359 -60.19 -88.94 12.81 34.37 27.80 20.63 18.02
-24.99 0.2428 -84.55 -17.39 0.2899 -73.12 11.52 35.81 -83.69 0.323 -74.12 0.3019 -83.48 0.267 36.24
0.4475 -131.33 10.3201 -81.96 0.0066 13.8498 143.35 0.0036 0.0062 0.1133 -15.23 13.6149 42.94 0.324 -9.03
0.2228 -80.36
-55.78 0.0637 17.93
0.2741 -14.00 10.2202 -144.57 0.006 0.3458 -8.19 0.2818 -14.80 0.1318 34.49 2.7131 1.1847 59.91 0.28
-16.85 0.0713
5.7473 131.66 0.0009 -29.68 0.2643 0.003 -119.30 0.3786 0.0025 -177.50 0.4481
0.5351 -14.30 0.4906 -31.11 0.2427 -72.20
0.0027 -148.15 0.3803 26.63 0.0062 -179.25 0.4498 21.69 0.44 18.28
0.3686 -25.59 0.0079 138.81
0.4931 -55.56 0.0039 170.99 0.4398
Measured S-Parameters represent packaged device.
Alpha Industries, Inc. [978] 241-7000 [978] 241-7906 Email sales@alphaind.com www.alphaind.com
Specifications subject change without notice. 1/02A
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