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参数资料
| 型号： | AT-242 |
| 元件分类： | 衰减器 |
| 英文描述： | 500 MHz - 2000 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 1.9 dB INSERTION LOSS-MAX |
| 封装： | PLASTIC, SOIC-8 |
| 文件页数： | 2/2页 |
| 文件大小： | 66K |
| 代理商： | AT-242 |
Digital Attenuator, 3 Bit, Single Control, 28 dB, 0.5 - 2 GHz
AT-242
M/A-COM Division of AMP Incorporated
3 North America: Tel. (800) 366-2266, Fax (800) 618-8883 3 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087
3 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V2.00
-7.0
-6.0
-5.0
-4.0
-3.0
-2.0
-1.0
0.0
1.0
2.0
0.1
0.6
1.1
1.5
2.0
2.5
3.0
FREQUENCY (Ghz)
NOMINAL
ATTENUATION
(dB)
28 dB
16 dB
8 dB
4 dB
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
0.1
0.6
1.1
1.5
2.0
2.5
3.0
FREQUENCY (Ghz)
VSWR
Ins. Loss
28 dB Atten.
16 dB Atten.
-30
-28
-26
-24
-22
-20
-18
-16
-14
-12
-10
-8
-6
-4
-2
0
0.1
0.6
1.1
1.5
2.0
2.5
3.0
FREQUENCY (Ghz)
ATTENUATION
(dB)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0.1
0.6
1.1
1.5
2.0
2.5
3.0
FREQUENCY (Ghz)
LOSS
(dB)
Typical Performance Curves
Insertion Loss vs. Frequency
Attenuation vs. Frequency
VSWR vs Frequency
Attenuation Accuracy vs. Frequency
Functional Schematic
1, 2, 3
1. V
s = -3 VDC - 5 VDC @ 50 A max.
2. V
s can be applied to RF1 or RF2 through a 10K pull-up resistor.
3. External DC blocking capacitors are required on all RF ports.
4. 39 pF used for data measurement.
V1
V2
V3
Attenuation (dB)
1
Reference I.L.
10
1
4
11
0
8
10
0
12
01
1
16
00
1
20
01
0
24
00
0
28
Truth Table
Logic 1 = Vs ± 0.2 V
Logic 0 = 0 ± 0.2C
8
76
5
1
3
2
4
GND
V3
GND
RF2
RF1
V2
GND
V1
8
4
16
(GHz)
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