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AT-119_1 [TE]

2.25 Volt Variable Absorptive Attenuator, 42dB 1.8 - 2.5 GHz; 2.25伏可变衰减器吸收， 42分贝1.8 - 2.5 GHz的
AT-119_1
型号： AT-119_1
厂家： TE CONNECTIVITY    TE CONNECTIVITY
描述：

2.25 Volt Variable Absorptive Attenuator, 42dB 1.8 - 2.5 GHz
2.25伏可变衰减器吸收， 42分贝1.8 - 2.5 GHz的

衰减器
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2.25 Volt Voltage Variable Absorptive Attenuator  
42 dB, 1.8 - 2.5 GHz  
AT-119  
V9  
Features  
Functional Schematic  
•
•
•
•
•
Single Positive Voltage Control: 0 to +2.25 Volts  
42 dB Typical Attenuation Range at 2.4 GHz  
Low DC Power Consumption  
5
4
VCC  
VCTL  
SOT-25 Plastic Package  
Tape and Reel Packaging Available  
Description  
M/A-COM’s AT-119 is a GaAs MMIC voltage  
variable absorptive attenuator in a low cost, SOT-25  
five-lead, surface mount plastic package. M/A-COM  
fabricates the AT-119 with a proven monolithic GaAs  
0.5 micron gate process that features full chip  
passivation for performance and reliability.  
1
2
3
RF  
GND  
RF  
Applications  
The AT-119 is ideally suited for applications that  
require fine tuning, linear attenuation with voltage,  
and very low power consumption.  
100pF  
100pF  
Pin Configuration  
Typical applications for the AT-119 include  
automatic gain control circuits in satellite radio  
receivers and other wireless receivers.  
Pin  
1
Function  
RF  
Description  
RF (input / output)  
Ground  
2
GND  
3
RF  
RF (input / output)  
Ordering Information 1  
Part Number  
4
5
VCTL  
VCC  
Control Voltage  
DC Supply Voltage  
Package  
AT-119  
SOT-25 Plastic Package  
AT-119TR-3000  
AT-119SMB  
3000 piece reel  
Absolute Maximum Ratings 2,3  
TA = +25°C (unless otherwise specified)  
Sample Test Board  
(Includes 5 Samples)  
1. Reference Application Note M513 for reel size information.  
Parameter  
Input Power  
Absolute Maximum  
+21 dBm  
-1V ≤ VCC ≤ +8 V  
-1V ≤ VCTL ≤ VCC +0.5 V  
-40°C to +85°C  
Supply Voltage VCC  
Control Voltage VCTL  
Operating Temperature  
Storage Temperature  
-65°C to +150°C  
2. Exceeding any one or combination of these limits may cause  
permanent damage to this device.  
3. M/A-COM does not recommend sustained operation near  
these survivability limits.  
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the  
product(s) or information contained herein without notice. M/A-COM makes  
no warranty, representation or guarantee regarding the suitability of its  
products for any particular purpose, nor does M/A-COM assume any liability  
whatsoever arising out of the use or application of any product(s) or  
information.  
• North America Tel: 800.366.2266 / Fax: 978.366.2266  
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300  
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298  
Visit www.macom.com for additional data sheets and product information.  
2.25 Volt Voltage Variable Absorptive Attenuator  
42 dB, 1.8 - 2.5 GHz  
AT-119  
V9  
Electrical Specifications: TA = 25°C, Frequency = 2.4 GHz, VCC = 3.3 V, Z0 = 50 Ω  
Parameter  
Insertion Loss  
Test Conditions 4,5  
VCTL = 2.25 V  
Units  
dB  
Min.  
—
Typ.  
2.4  
42  
Max.  
3.2  
—
Maximum Attenuation  
Attenuation Slope  
VCTL = 0.5 V  
dB  
37  
0.75 V < VCTL < 1.75 V  
dB/V  
24  
—
—
0.0 V < VCTL < 0.75 V  
0.75 V < VCTL < 1.75 V  
1.75 V < VCTL < 2.25 V  
dB  
dB  
dB  
—
—
—
6
—
—
—
Return Loss  
10  
14  
0.75 V < VCTL < 2.25 V  
0.75 V < VCTL < 2.25 V  
50% VCTL to 10% / 90% RF  
VCTL = 3 V, In-Band  
dBm  
dBm  
nS  
—
—
—
—
10  
15  
—
—
—
—
Input Power for 1dB Change in Attenuation  
Input 3rd Order Intercept Point  
Switching Speed  
100  
10  
Transients  
mV  
4. External DC blocking capacitors are required on all RF ports.  
5. CC = +3.3 V @ 50 µA typical. VCTL = 0 V to +2.25 V @ 50 µA typical.  
V
Application Schematic  
Handling Procedures  
Please observe the following precautions to avoid  
VCC  
V control  
damage:  
100 pF  
Static Sensitivity  
RF IN/  
OUT  
220 pF  
Gallium Arsenide Integrated Circuits are sensitive  
to electrostatic discharge (ESD) and can be  
damaged by static electricity. Proper ESD control  
techniques should be used when handling these  
devices.  
100 pF  
RF IN/  
OUT  
15 pF  
2
M/A-COM Inc. and its affiliates reserve the right to make changes to the  
product(s) or information contained herein without notice. M/A-COM makes  
no warranty, representation or guarantee regarding the suitability of its  
products for any particular purpose, nor does M/A-COM assume any liability  
whatsoever arising out of the use or application of any product(s) or  
information.  
• North America Tel: 800.366.2266 / Fax: 978.366.2266  
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300  
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298  
Visit www.macom.com for additional data sheets and product information.  
2.25 Volt Voltage Variable Absorptive Attenuator  
42 dB, 1.8 - 2.5 GHz  
AT-119  
V9  
Typical Performance Curves  
Insertion Loss vs. Frequency @ 2.25 V Control  
Attenuation vs. Control Voltage @ +25°C  
Voltage  
4.0  
0
10  
20  
30  
3.5  
3.0  
2.5  
2.0  
1.5  
40  
+25°C  
1.8 GHz  
-40°C  
+85°C  
2.1 GHz  
1.0  
0.5  
0.0  
2.4 GHz  
50  
60  
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
Frequency (GHz)  
Control Voltage (V)  
Attenuation vs. Frequency @ 0.0 V Control Voltage  
Typical Device Variation, 2.4 GHz  
0
0
10  
20  
30  
40  
50  
60  
10  
20  
30  
40  
+25°C  
-40°C  
+85°C  
50  
60  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
Control Voltage (V)  
Frequency (GHz)  
Return Loss vs. Control Voltage  
Insertion Loss Delta Normalized to +25°C (-40°C)  
0
8
6
4
5
10  
15  
2
0
-2  
20  
1.8 GHz  
2.1 GHz  
1.8 GHz  
2.1 GHz  
2.4 Ghz  
-4  
-6  
-8  
2.4 GHz  
25  
30  
2.0  
1.5  
1.0  
0.5  
0.0  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
Control Voltage (V)  
Control Voltage (V)  
3
M/A-COM Inc. and its affiliates reserve the right to make changes to the  
product(s) or information contained herein without notice. M/A-COM makes  
no warranty, representation or guarantee regarding the suitability of its  
products for any particular purpose, nor does M/A-COM assume any liability  
whatsoever arising out of the use or application of any product(s) or  
information.  
• North America Tel: 800.366.2266 / Fax: 978.366.2266  
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300  
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298  
Visit www.macom.com for additional data sheets and product information.  
2.25 Volt Voltage Variable Absorptive Attenuator  
42 dB, 1.8 - 2.5 GHz  
AT-119  
V9  
Typical Performance Curves  
Insertion Loss Delta Normalized to +25°C (+85°C)  
Input IP3 vs. Control Voltage @ +25°C  
8
40  
35  
30  
25  
20  
15  
10  
5
6
4
2
0
-2  
1.8 GHz  
-4  
2.1 GHz  
2.4 GHz  
-6  
0
-8  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
Control Voltage (V)  
Control Voltage (V)  
Input Power for 1 dB Change in Attenuation  
Input IP3 vs. Control Voltage over Temperature  
30  
40  
IIP3 @ +25C  
35  
30  
IIP3 @ +85C  
25  
20  
15  
10  
IIP3 @ -40C  
25  
20  
15  
10  
5
5
0
1.8 GHz  
2.4 GHz  
0
3.0  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
Control Voltage (V)  
Control Voltage (V)  
SOT-25  
4
M/A-COM Inc. and its affiliates reserve the right to make changes to the  
product(s) or information contained herein without notice. M/A-COM makes  
no warranty, representation or guarantee regarding the suitability of its  
products for any particular purpose, nor does M/A-COM assume any liability  
whatsoever arising out of the use or application of any product(s) or  
information.  
• North America Tel: 800.366.2266 / Fax: 978.366.2266  
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300  
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298  
Visit www.macom.com for additional data sheets and product information.  

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