AT-280PIN [TE]
Digital Attenuator, 15.5 dB, 5-Bit DC - 2 GHz; 数字衰减15.5分贝， 5位DC - 2 GHz的
| 型号： | AT-280PIN |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Digital Attenuator, 15.5 dB, 5-Bit DC - 2 GHz |
| 文件： | 总2页 (文件大小：100K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Digital Attenuator, 15.5 dB, 5-Bit
DC - 2 GHz
AT-280
V 2.00
Features
SO-16
●
Attenuation: 0.5-dB Steps to 15.5 dB
●
Temperature Stability: ± 0.15 dB from -40°C to
+85°C Typical
●
Ultra Low DC Power Consumption
●
Low Intermodulation Products, IP : 45 dBm
Tape and Reel Packaging Available
3
●
Description
M/A-COM's AT-280 is a 5-bit, 0.5 dB-step GaAs MMIC
digital attenuator in a low cost SOIC 16-lead surface mount
plastic package. The AT-280 is ideally suited for use where
high accuracy, fast switching, very low power consumption
and low intermodulation products are required at a low
cost. Typical applications include radio and cellular
equipment, wireless LANS, GPS equipment and other
Gain/Level Control circuits.
Ordering Information
The AT-280 is fabricated with a monolithic GaAs MMIC
using a mature 1-micron process. The process features full
chip passivation for increased performance and reliability.
Part Number
Package
AT-280 PIN
AT-280TR
AT-280RTR
SOIC 16-Lead
Forward Tape & Reel*
Reverse Tape & Reel*
If specific reel size is required, consult factory for part number
assignment.
*
Electrical Specifications,T = 25°C
A
Parameter
Test Conditions2
Unit
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
1.1
1.3
1.5
1.8
1.3
1.5
1.8
2.0
2
Attenuation Accuracy
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
(any state)
1.5:1
1.8:1
Trise, Tfall
Ton, Toff
Transients
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, 50% Control to 10% RF
In Band
nS
nS
mV
12
18
30
One dB
Compression
Input Power
Input Power
0.05 GHz
0.5 – 2.0 GHz
dBm
dBm
22
27
IP
2
Measured Relative
0.05 GHz
0.5 – 2.0 GHz
dBm
dBm
53
68
to Input Power
(for two-tone input power up to +5 dBm)
IP
3
Measured Relative
0.05 GHz
0.5 – 2.0 GHz
dBm
dBm
40
45
to Input Power
(for two-tone input power up to +5 dBm)
1. All measurements at 1 GHz in a 50Wsystem, unless otherwise specified.
2. Attenuation accuracy specifications apply with negative bias control and low inductance grounding.
V 2.00
Absolute Maximum Ratings1
Functional Schematic
Parameter
Absolute Maximum1
Max. Input Power
0.05 GHz
+27 dBm
0.5 – 2.0 GHz
+34 dBm
Control Voltage
Operating Temperature
Storage Temperature
+5V, –8.5V
–40˚C to +85°C
–65˚C to +150˚C
1.Operation of this device above any one of these parameters may cause
permanent damage.
Truth Table
Control Inputs
Attenuation (dB)
VC5 VC4 VC3 VC3 VC2 VC2 VC1 VC1
1
0
1
1
1
1
0
1
1
0
1
1
1
0
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
0.5 dB
1 dB
2 dB
4 dB
8 dB
15.5 dB
0 = VinLow = 0 V = 0 to -0.2 V @ 20 A maximum
Typical Performance
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