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參數(shù)資料
| 型號： | AT-246PIN |
| 元件分類： | 衰減器 |
| 英文描述： | 0 MHz - 3000 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 1 dB INSERTION LOSS-MAX |
| 封裝： | PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 2/2頁 |
| 文件大?。?/td> | 66K |
| 代理商： | AT-246PIN |
Digital Attenuator, 1 Bit, Variable Step, 10 - 20 dB, DC - 3000 MHz
AT-246
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
1
1.1
1.2
1.3
1.4
1.5
01
2
3
4
FREQUENCY (GHz)
VSWR
Worst Case
0
5
10
15
20
25
01234
FREQUENCY (GHz)
Attenuation
(dB)
ATTENUATION vs FREQUENCY
RStep= 820
RStep=180
RStep=51
RStep=OPEN
0
0.2
0.4
0.6
0.8
1
1.2
0
0.5
1
1.5
2
2.5
3
FREQUENCY (GHz)
Insertion
Loss
(dB)
-40° C
+25° C
+85° C
Parameter
Absolute Maximum
Input Power
50 MHz
+27 dBm
500 - 2000 MHz
+33 dBm
Control Voltage
+5V, -8.5V
Operating Temperature
-40°C to +85°C
Storage Temperature
-65°C to +150°C
Absolute Maximum Ratings
1
1.
Exceeding any one or a combination of these limits may cause
permanent damage.
Typical Performance Curves
Insertion Loss vs. Frequency
Attenuation vs. Frequency
VSWR vs Frequency
Functional Schematic
Note:
Rstep value is selected for desired attenuation level. The usable
range is 50
to OPEN to achieve 10 - 20 dB attenuation with >15 dB
Return Loss.
V1
V2
Attenuation (dB)
0
1
Reference I.L.
10
Step
Truth Table
“0” = 0 ±0.2V
“1” = -5 ±0.2V
PIN Configuration
PIN No.
Function
Description
1
GND
RF Ground
2
V1
Bit Control
3
V2
Bit Control
4
GND
RF Ground
5
RF2
RF in/out
6
GND
RF Ground
7
GND
RF Ground
8
RF1
RF in/out
20dB
PIN 1
GND
V1
V2
GND
RF1
GND
RF2
Rstep
Step Set Resistor
PIN 1
Recommended Layout
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