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參數(shù)資料
| 型號(hào)： | AT-246TR |
| 英文描述： | Digital Attenuator， 1Bit， Variable Step 10-20dB， DC-3000MHz |
| 中文描述： | 數(shù)字衰減器，變步10 1位為- 20dB，直流3000MHz |
| 文件頁(yè)數(shù)： | 2/2頁(yè) |
| 文件大?。?/td> | 66K |
| 代理商： | AT-246TR |
Digital Attenuator, 1 Bit, Variable Step, 10 - 20 dB, DC - 3000 MHz
AT-246
M/A-COM Division of AMP Incorporated
Q
North America: Tel. (800) 366-2266, Fax (800) 618-8883
Q
Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087
Q
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
0
1
2
3
4
FREQUENCY (GHz)
V
Worst Case
0
5
10
15
20
25
0
1
2
3
4
FREQUENCY (GHz)
A
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
FREQUENCY (GHz)
1.5
2
2.5
3
I
-40° C
+25° C
+85° C
Parameter
Absolute Maximum
Input Power
50 MHz
500 - 2000 MHz
Control Voltage
Operating Temperature
Storage Temperature
+27 dBm
+33 dBm
+5V, -8.5V
-40°C to +85°C
-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
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
0
1
V2
1
0
Attenuation (dB)
Reference I.L.
Step
Truth Table
“0” = 0 ±0.2V
“1” = -5 ±0.2V
PIN Configuration
PIN No.
1
2
3
4
5
6
7
8
Function
GND
V1
V2
GND
RF2
GND
GND
RF1
Description
RF Ground
Bit Control
Bit Control
RF Ground
RF in/out
RF Ground
RF Ground
RF in/out
20dB
PIN 1GND
V1
V2
GND
RF1
GND
GND
RF2
Rstep
Step Set Resistor
PIN 1
Recommended Layout
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