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參數(shù)資料
| 型號： | 940-60-12 |
| 元件分類： | 衰減器 |
| 英文描述： | 0 MHz - 4000 MHz RF/MICROWAVE VARIABLE ATTENUATOR |
| 封裝： | ROHS COMPLIANT PACKAGE |
| 文件頁數(shù)： | 1/2頁 |
| 文件大小： | 159K |
| 代理商： | 940-60-12 |
5305 Spectrum Drive, Frederick, MD 21703-7362
TEL: 301-846-9222, 800-638-2048
Fax: 301-846-9116
web: www.aeroflex-weinschel.com
email: weinschel-sales@aeroflex.com
66
Revision Date: 11-28-07
Variable Attenuators
Model 940-60
dc to 4.0 GHz
Model 940-114
dc to 2.0 GHz
Precision Continuously Variable Attenuators
5 Watts
Choice of SMA or Type N Connectors
Features
o Wide Variable Attenuation Range - Variable attenua-
tion range of 60 dB for Model 940-60 and 114 dB for
Model 940-114, with minimum insertion loss at 6 dB.
o Approximately Linear Calibrated Dial - Direct reading
dial individually calibrated in approximately linear 1 dB
increments from 6 dB to full scale.
o Rugged - Designed to meet the environmental require-
ments of MIL-A-24215.
o Long Life - These variable attenuators offer a cycle life
of up to 10,000 cycles. Optional models are also avail-
able to extend the life to 50,000 cycles.
o Available Express Models:
940-60-11
940-60-33
940-60-33-1
Other models may be available for Express delivery.
Specifications
NOMINAL IMPEDANCE: 50
Ω
FREQUENCY RANGE:
Model 940-60:
dc to 4.0 GHz
Model 940-114:
dc to 2.0 GHz
INCREMENTAL ATTENUATION RANGE:
Model 940-60:
60 dB
Model 940-114:
114 dB
CHARACTERISTIC INSERTION LOSS, RESIDUAL:
6 dB nominal
DIAL CALIBRATION (in 1 dB increments):
Model 940-60:
6 to 66 dB
Model 940-114:
6 to 120 dB
DIAL INCREMENTS: 1 dB
RESOLUTION OF SCALE:
Model 940-60:
~ 115°
Model 940-114:
~ 270°
CYCLE LIFE: A cycle consists of a rotation from minimum
to maximum and back to minimum
Model 940-XX-XX :
10,000
Model 940-XX-XX-1:
50,000
PHASE SHIFT WITH CHANGE IN ATTENUATION:
1° per dB x f(GHz) maximum
POWER RATING: 5 watts average to 40°C ambient tem-
perature, derated linearly to 0 watts @ 85°C. 500 watts
peak (5
μsec pulse width; 0.5% duty cycle).
POWER COEFFICIENT: < 0.005 dB/dB/watt
TEMPERATURE COEFFICIENT: <0.001 dB/dB/°C
TEMPERATURE RANGE:
Operating:
0°C to +85°C
Nonoperating:
-55°C to +125°C.
FREQUENCY SENSITIVITY:
Model 940-60:
0.05 x A x (F - Fd) dB
Model 940-114:
0.1 x A x (F - Fd) dB
A = Attenuation setting in dB, Fd = Dial cut frequency in
GHz, F= Operation frequency in GHz
TEST DATA: Test frequency for Model 940-60 is 2 GHz and
1 GHz for 940-114. Test data is available at additional cost.
Model
ACCURACY*
940-60-XX
+ 0.25 dB or 0.4% @ 2 GHz
940-114-XX
+ 0.25 dB or 0.4% @ 1 GHz
940-60-XX-1
+ 0.5 dB or 1% @ 2 GHz
940-114-XX-1
+ 0.5 dB or 1% @ 1 GHz
*Whichever is greater.
DIRECT READING DIAL ACCURACY:
MAXIMUM SWR:
Frequency Range (GHz)
SWR
dc - 1
1.50
1 - 2
1.60
2 - 3
1.70
3 - 4
1.80
www.argosysales.com
800-542-4457
EXPRESS
RoHS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 940-60-22 | 0 MHz - 4000 MHz RF/MICROWAVE VARIABLE ATTENUATOR |
| 940-60-33-1 | 0 MHz - 4000 MHz RF/MICROWAVE VARIABLE ATTENUATOR |
| 940-60-33 | 0 MHz - 4000 MHz RF/MICROWAVE VARIABLE ATTENUATOR |
| 940-60-34 | 0 MHz - 4000 MHz RF/MICROWAVE VARIABLE ATTENUATOR |
| 940-60-44 | 0 MHz - 4000 MHz RF/MICROWAVE VARIABLE ATTENUATOR |
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