MA-COM AT-119TR-3000 2.25 volt voltage variable absorptive attenuator 42 db, 1.8 - 2.5 ghz Datasheet

AT-119
2.25 Volt Voltage Variable Absorptive Attenuator
42 dB, 1.8 - 2.5 GHz
Functional Schematic
Features
•
•
•
•
•
Rev. V9
Single Positive Voltage Control: 0 to +2.25 Volts
42 dB Typical Attenuation Range at 2.4 GHz
Low DC Power Consumption
SOT-25 Plastic Package
Tape and Reel Packaging Available
5
VCC
4
VCTL
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
RF
2
GND
3
RF
Applications
100pF
The AT-119 is ideally suited for applications that
require fine tuning, linear attenuation with voltage,
and very low power consumption.
Typical applications for the AT-119 include
automatic gain control circuits in satellite radio
receivers and other wireless receivers.
Ordering Information 1
Part Number
Package
AT-119
SOT-25 Plastic Package
AT-119TR-3000
3000 piece reel
AT-119SMB
Sample Test Board
(Includes 5 Samples)
1. Reference Application Note M513 for reel size information.
100pF
Pin Configuration
Pin
Function
Description
1
RF
RF (input / output)
2
GND
Ground
3
RF
RF (input / output)
4
VCTL
Control Voltage
5
VCC
DC Supply Voltage
Absolute Maximum Ratings 2,3
TA = +25°C (unless otherwise specified)
Parameter
Absolute Maximum
Input Power
+21 dBm
Supply Voltage VCC
-1V ≤ VCC ≤ +8 V
Control Voltage VCTL
-1V ≤ VCTL ≤ VCC +0.5 V
Operating Temperature
-40°C to +85°C
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
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 / Fax: 978.366.2266
is considering for development. Performance is based on target specifications, simulated results,
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
and/or prototype measurements. Commitment to develop is not guaranteed.
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Visit www.macomtech.com for additional data sheets and product information.
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
AT-119
2.25 Volt Voltage Variable Absorptive Attenuator
42 dB, 1.8 - 2.5 GHz
Rev. V9
Electrical Specifications: TA = 25°C, Frequency = 2.4 GHz, VCC = 3.3 V, Z0 = 50 Ω
Parameter
Test Conditions 4,5
Units
Min.
Typ.
Max.
Insertion Loss
VCTL = 2.25 V
dB
—
2.4
3.2
Maximum Attenuation
VCTL = 0.5 V
dB
37
42
—
Attenuation Slope
0.75 V < VCTL < 1.75 V
dB/V
24
—
—
Return Loss
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
10
14
—
—
—
Input Power for 1dB Change in Attenuation
0.75 V < VCTL < 2.25 V
dBm
—
10
—
Input 3rd Order Intercept Point
0.75 V < VCTL < 2.25 V
dBm
—
15
—
Switching Speed
50% VCTL to 10% / 90% RF
nS
—
100
—
Transients
VCTL = 3 V, In-Band
mV
—
10
—
4. External DC blocking capacitors are required on all RF ports.
5. VCC = +3.3 V @ 50 µA typical. VCTL = 0 V to +2.25 V @ 50 µA typical.
Handling Procedures
Application Schematic
VCC
V control
Static Sensitivity
100 pF
RF IN/
OUT
Please observe the following precautions to avoid
damage:
220 pF
100 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.
RF IN/
OUT
15 pF
2
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 / Fax: 978.366.2266
is considering for development. Performance is based on target specifications, simulated results,
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
and/or prototype measurements. Commitment to develop is not guaranteed.
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Visit www.macomtech.com for additional data sheets and product information.
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
AT-119
2.25 Volt Voltage Variable Absorptive Attenuator
42 dB, 1.8 - 2.5 GHz
Rev. V9
Typical Performance Curves
Insertion Loss vs. Frequency @ 2.25 V Control Voltage
Attenuation vs. Control Voltage @ +25°C
4.0
0
3.5
10
3.0
20
2.5
2.0
30
1.5
40
+25°C
-40°C
+85°C
1.0
1.8 GHz
2.1 GHz
2.4 GHz
50
0.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
60
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Control Voltage (V)
Frequency (GHz)
Typical Device Variation, 2.4 GHz
Attenuation vs. Frequency @ 0.0 V Control Voltage
0
0
10
10
20
20
30
30
40
40
50
+25°C
-40°C
+85°C
50
60
60
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.5
1.0
Control Voltage (V)
1.5
2.0
2.5
3.0
Frequency (GHz)
Return Loss vs. Control Voltage
Insertion Loss Delta Normalized to +25°C (-40°C)
8
0
6
5
4
10
2
0
15
-2
20
1.8 GHz
2.1 GHz
2.4 GHz
-6
-8
30
2.0
3
1.8 GHz
2.1 GHz
2.4 Ghz
-4
25
1.5
1.0
Control Voltage (V)
0.5
0.0
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Control Voltage (V)
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 / Fax: 978.366.2266
is considering for development. Performance is based on target specifications, simulated results,
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
and/or prototype measurements. Commitment to develop is not guaranteed.
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Visit www.macomtech.com for additional data sheets and product information.
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
AT-119
2.25 Volt Voltage Variable Absorptive Attenuator
42 dB, 1.8 - 2.5 GHz
Rev. V9
Typical Performance Curves
Insertion Loss Delta Normalized to +25°C (+85°C)
Input IP3 vs. Control Voltage @ +25°C
8
40
6
35
4
30
2
25
0
20
-2
15
1.8 GHz
2.1 GHz
2.4 GHz
-4
10
5
-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
40
30
IIP3 @ +25C
IIP3 @ +85C
IIP3 @ -40C
35
25
30
20
25
20
15
15
10
10
5
0
3.0
1.8 GHz
2.4 GHz
2.5
2.0
1.5
5
1.0
Control Voltage (V)
0.5
0.0
0
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Control Voltage (V)
4
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 / Fax: 978.366.2266
is considering for development. Performance is based on target specifications, simulated results,
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
and/or prototype measurements. Commitment to develop is not guaranteed.
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Visit www.macomtech.com for additional data sheets and product information.
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
AT-119
2.25 Volt Voltage Variable Absorptive Attenuator
42 dB, 1.8 - 2.5 GHz
Rev. V9
SOT-25
5
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 / Fax: 978.366.2266
is considering for development. Performance is based on target specifications, simulated results,
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
and/or prototype measurements. Commitment to develop is not guaranteed.
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Visit www.macomtech.com for additional data sheets and product information.
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
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