AT-260_1 [TE]
Digital Attenuator 31 dB, 5-Bit DC-2.0 GHz; 数字衰减器31分贝， DC - 2.0 5位GHz的
| 型号： | AT-260_1 |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Digital Attenuator 31 dB, 5-Bit DC-2.0 GHz |
| 文件： | 总3页 (文件大小：193K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Digital Attenuator, 31 dB, 5-Bit
DC - 2.0 GHz
AT-260
V5
Features
Functional Schematic
• 1-dB Attenuation Steps to 31 dB
• Ultra Low DC Power Consumption
• Low Intermodulation Products: IP3 = 50 dBm
• SSOP-20 Plastic Package
• Tape and Reel Packaging Available
• Temperature Stability: ± 0.15 dB from –40°C to
+85°C
20
19
18
17
16
15
14
13
12
11
16 dB
8 dB
4 dB
2 dB
1 dB
Description
M/A-COM’s AT-260 is a 5-bit, 1-dB step GaAs MMIC
digital attenuator in a low cost SSOP-20 surface
mount plastic package. The AT-260 is ideally suited
for use where high accuracy, fast switching, very low
power consumption and low intermodulation
products are required at a low cost.
1
2
3
4
5
6
7
8
9
10
Typical applications include radio and cellular
equipment, wireless LANS, GPS equipment and
other gain/level control circuits.
Pin Configuration
Pin No.
Function
VC1
Pin No.
Function
RF1
1
2
3
4
5
11
12
13
14
15
The AT-260 is fabricated with a monolithic GaAs
MMIC using a mature 1-micron process. The
process features full chip passivation for increased
performance and reliability.
VC1
Ground
Ground
Ground
Ground
VC2
VC2
VC3
Ordering Information
6
7
VC3
VC4
VC4
16
17
18
19
20
Ground
Ground
Ground
Ground
RF2
Part Number
Package
8
AT-260
SSOP 20-Lead
9
No Connection
VC5
AT-260TR
Forward Tape and Reel
10
Note: Reference Application Note M513 for reel size
information.
Absolute Maximum Ratings 1,2
Parameter
Absolute Maximum
Input Power:
0.05 GHz
+27 dBm
0.5 - 2.0 GHz
+34 dBm
+5V, -8.5V
Control Voltage
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.
2. 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.
Digital Attenuator, 31 dB, 5-Bit
DC - 2.0 GHz
AT-260
V5
Electrical Specifications: TA = 25°C, Z0 = 50 Ω
Parameter
Test Conditions
Units
Min.
Typ.
Max.
Reference Insertion Loss
DC - 0.1 GHz
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
dB
dB
dB
dB
—
—
—
—
1.6
1.7
1.9
2.2
1.8
1.9
2.2
2.5
Attenuation Accuracy 3
DC - 1.0 GHz
DC - 2.0 GHz
± (0.20 dB +3% of Atten Setting in dB) dB
± (0.30 dB +3% of Atten Setting in dB) dB
VSWR
Trise, Tfall
Ton, Toff
(Any state)
Ratio
nS
—
—
—
1.5:1
8
—
—
—
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF,
50% Control to 10% RF
nS
15
Transients
In Band
mV
—
2
—
1 dB Compression
Input Power
0.05 GHz
dBm
dBm
—
—
20
27
—
—
0.5 - 2.0 GHz
IP2
IP3
0.05 GHz
dBm
dBm
—
—
45
60
—
—
0.5 - 2.0 GHz
Measured Relative to Input Power
(for two-tone input power up to +5 dBm)
0.05 GHz
dBm
dBm
—
—
34
50
—
—
0.5 - 2.0 GHz
Measured Relative to Input Power
(for two-tone input power up to +5 dBm)
3. Attenuation accuracy specifications apply with negative bias control and low inductance grounding.
Truth Table4
Handling Procedures
Please observe the following precautions to avoid
Control Inputs
damage:
VC5 VC4 VC4 VC3 VC3 VC2 VC2 VC1 VC1 Atten (dB)
Static Sensitivity
1
0
1
1
1
1
0
1
1
0
1
1
1
0
0
0
1
0
0
0
1
1
1
1
0
1
1
0
0
0
0
1
0
0
1
1
1
1
1
0
1
0
0
0
0
0
1
0
1
1
1
1
1
1
0
0
0
0
0
0
0
1
1
Reference
1 dB
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.
2 dB
4 dB
8 dB
16 dB
31 dB
4. 0 = Vin Low = 0 V = 0 to -0.2 V @ 20 µA maximum.
1 = Vin High = -5 V @ 20 µA typical to –8 V @ 200 µA
maximum.
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.
Digital Attenuator, 31 dB, 5-Bit
DC - 2.0 GHz
AT-260
V5
Typical Performance Curves
Attenuation Accuracy
Insertion Loss
4
1.0
2 dB
4 dB
8 dB
+25°C
16 dB
31 dB
3
2
1
0
0.5
0.0
-40°C
+85°C
-0.5
-1.0
0.0
0.5
1.0
1.5
2.0
0.0
0.5
1.0
1.5
2.0
Frequency (GHz)
Frequency (GHz)
VSWR
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0
1
2
4
8
16
31
0.0
0.5
1.0
1.5
2.0
Frequency (GHz)
SSOP-20
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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