AT-259_1 [TE]
Voltage Variable Absorptive Attenuator 12 dB, DC-2.0 GHz; 可变电压衰减器吸收12分贝， DC- 2.0 GHz的
| 型号： | AT-259_1 |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Voltage Variable Absorptive Attenuator 12 dB, DC-2.0 GHz |
| 文件： | 总3页 (文件大小：170K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Voltage Variable Absorptive Attenuator
12 dB, DC-2.0 GHz
AT-259
V4
Features
Functional Schematic
•
•
•
•
•
•
•
•
Attenuation: 12 dB at 1 GHz
Low Intermodulation Products
Low DC Power Consumption: 50 µW
Single Voltage Control: 0 to -4 Volts
Nanosecond Switching Speed
Temperature Range: -40°C to +85°C
SOT-143 Plastic Package
4
3
Tape and Reel Packaging Available
Description
M/A-COM’s AT-259 is a GaAs MMIC voltage
variable absorptive attenuator in a low cost SOT-143
4-Lead surface mount plastic package. The AT-259
is ideally suited for use where attenuation fine
tuning, fast switching and very low power
consumption are required.
2
1
Typical applications include radio, cellular, GPS
equipment and other automatic gain/level control
circuits.
Pin Configuration
The AT-259 is fabricated with a monolithic GaAs
MMIC using a mature 1 micron process. The
process features full chip passivation for increased
performance and reliability.
Pin No.
Function
Ground
VC
Pin No.
Function
1
3
RF2
2
4
RF1
Ordering Information
Absolute Maximum Ratings 1
Part Number
Package
AT-259
SOT 4-Lead Plastic Package
Absolute Maximum
Parameter
Input Power
AT-259TR
Forward Tape and Reel
+21 dBm
+5V, -8.5V
Control Voltage
Note: Reference Application Note M513 for reel size
information.
Operating Temperature
Storage Temperature
-40°C to +85°C
-65°C to +150°C
1. Exceeding any one or combination of these limits may cause
permanent damage to this device.
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.
Voltage Variable Absorptive Attenuator
12 dB, DC-2.0 GHz
AT-259
V4
Electrical Specifications: TA = 25°C, Z0 = 50 Ω
Parameter
Test Conditions2
Frequency
Units
Min
Typ
Max
Insertion Loss
—
DC - 0.1 GHz
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
dB
dB
dB
dB
—
—
—
—
2.9
3.0
3.2
3.4
3.1
3.2
3.5
3.8
Flatness
5 dB Attenuation
10 dB Attenuation
15 dB Attenuation
DC - 2.0 GHz
DC - 2.0 GHz
DC - 2.0 GHz
dB
dB
dB
—
—
—
+ 0.2
+ 2.3
+ 7.0
+ 0.4
+ 2.5
+ 7.5
(Peak to Peak)
Output Impedance
VSWR
—
—
—
—
—
Ohms
Ratio
nS
—
—
—
—
50
2.1:1
3
—
—
—
—
—
Trise, Tfall
Ton, Toff
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF,
50% Control to 10% RF
nS
5
Transients
In Band
—
—
mV
—
10
—
Power Handling
Linear Operation
dBm
dBm
—
—
—
—
13
21
Absolute maximum Input Power
IP2
IP3
Measured Relative to Input Power
0.05 GHz
dBm
dBm
—
—
34
47
—
—
(For two-tone Input Power Up to +5 dBm)
0.5 - 2.0 GHz
Measured Relative to Input Power
0.05 GHz
dBm
dBm
18
313
—
—
(For two-tone Input Power Up to +5 dBm)
0.5 - 2.0 GHz
18.5
363
2. Control voltage: 0 to -4 volts @ 20 µA typical.
3. For levels above 6 dB attenuation. For levels below 6 dB, the minimum specification numbers apply.
SOT-143
2
M/A-COM Inc. and its affiliates reserve the right to make changes to the
• 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
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.
Visit www.macom.com for additional data sheets and product information.
Voltage Variable Absorptive Attenuator
12 dB, DC-2.0 GHz
AT-259
V4
Typical Performance Curves
Insertion Loss vs. Frequency
Attenuation vs. Frequency
20
15
10
5
4
5
10
15
3
+25°C
2
-40°C
+85°C
1
0
0.0
0
0.0
0.5
1.0
1.5
2.0
0.5
1.0
1.5
2.0
Frequency (GHz)
Frequency (GHz)
VSWR vs. Frequency
Attenuation vs. Control Voltage, F = 950 MHz
15
10
5
2.0
1.8
1.6
1.4
1.2
1.0
0
12
5
0
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0.0
0.5
1.0
1.5
2.0
Control Voltage (V)
Frequency (GHz)
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.
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