AT-280SMB [TE]
Digital Attenuator, 15.5dB,5-Bit,DC-2.0 GHz; 数字衰减器， 15.5分贝， 5位， DC- 2.0 GHz的
| 型号： | AT-280SMB |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Digital Attenuator, 15.5dB,5-Bit,DC-2.0 GHz |
| 文件： | 总3页 (文件大小：184K) |
| 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-2.0 GHz
AT-280
V5
Features
Functional Schematic
•
•
•
•
•
•
0.5 dB Attenuation Steps to 15.5 dB
Ultra Low DC Power Consumption
Low Intermodulation Product: +45 dBm IP3
SOIC-16 Plastic Package
Tape and Reel Packaging Available
Temperature Stability: +/-0.15 dB from -40°C to
+85°C
16
15
14
13
12
11
10
9
8 dB
4 dB
2 dB
1 dB
0.5 dB
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.
1
2
3
4
5
6
7
8
Typical applications include radio and cellular
equipment, wireless LANS, GPS equipment and
other gain/level control circuits.
Pin Configuration
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.
Pin No.
Function
VC1
Pin No.
Function
RF2
1
2
3
4
5
9
VC1
10
11
12
13
Ground
Ground
Ground
Ground
VC2
VC2
VC3
Ordering Information 1
6
7
8
VC3
VC4
VC5
14
15
16
Ground
Ground
RF1
Part Number
Package
AT-280
SOIC 16–Lead
AT-280TR
Forward Tape and Reel
Absolute Maximum Ratings 2
AT-280SMB
Sample Test Board (Includes 5 Samples)
Absolute Maximum
Parameter
1. Reference Application Note M513 for reel size information.
Input Power:
0.05 GHz
+27 dBm
+34 dBm
0.5 - 2.0 GHz
Control Voltage
-8.5 V < VC < +5 V
Operating Temperature
Storage Temperature
-40°C to +85°C
-65°C to +150°C
2. 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.
Digital Attenuator, 15.5 dB, 5-Bit
DC-2.0 GHz
AT-280
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
—
—
—
—
1.1
1.3
1.5
1.8
1.3
1.5
1.8
2.0
Attenuation Accuracy 3
DC—1.0 GHz
DC—2.0 GHz
± (0.20 dB +3% of Attenuation Setting in dB) dB
± (0.30 dB +3% of Attenuation Setting in dB) dB
VSWR
Trise, Tfall
(Any state)
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, 50% Control to 10% RF
In Band
Ratio
nS
1.5:1
—
1.8:1
12
—
—
—
—
Ton, Toff
nS
—
18
Transients
mV
—
30
1 dB Compression
Input Power, 0.05 GHz
dBm
dBm
—
—
22
27
—
—
Input Power, 0.5 - 2.0 GHz
IP2
IP3
0.05 GHz
dBm
dBm
—
—
53
68
—
—
0.5 - 2.0 GHz
Measured Relative to Input Power
(for two-tone input power up to +5 dBm)
0.05 GHz
dBm
dBm
—
—
40
45
—
—
0.5 - 2.0 GHz
Measured Relative to Input Power
(for two-tone input power up to +5 dBm)
3. Attenuation acccuracy specifications apply with negative bias control and low inductance grounding.
SOIC-16
Truth Table 4,5
Control Inputs
VC5 VC4 VC3 VC3 VC2 VC2 VC1 VC1
Atten.
(dB)
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
4. 0 = Vin Low = 0 V = 0 to –0.2 V @ 20 µA maximum
5. 1 = Vin High = -5 V at 20 µA to -8 V at 20 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, 15.5 dB, 5-Bit
DC-2.0 GHz
AT-280
V5
Typical Performance Curves
Insertion Loss
Attenuation Accuracy
3.0
0.5 dB Atten
0.3
1 dB Atten
2 dB Atten
4 dB Atten
8 dB Atten
15.5 dB Atten
2.5
0.2
0.1
+25°C
-40°C
2.0
+85°C
1.5
1.0
0.5
0.0
0.0
-0.1
-0.2
-0.3
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
1.5
IL
1 dB
2 dB
4 dB
8 dB
16 dB
1.4
1.3
1.2
1.1
1.0
0.0
0.5
1.0
1.5
2.0
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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