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參數(shù)資料
| 型號： | AT-232 |
| 英文描述： | Digital Attenuator, 30 dB, 4-Bit, DC - 2 GHz |
| 中文描述： | 數(shù)字衰減器，30分貝，4位，直流- 2吉赫 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大小： | 227K |
| 代理商： | AT-232 |
Digital Attenuator, 30 dB, 4-Bit,
DC - 2 GHz
A
CR-6
V 3.00
Features
I
Attenuation: 2 dB steps to 30 dB
I
Temperature Stability: ± 0.18 dB from –55°C to +85°C
Typical
I
Low DC Power Consumption
I
Hermetic Surface Mount Package
I
Fast Switching Speed, 12 ns Typical
I
50 Ohm Nominal Impedance
Description
M/A-COM’s AT-232 is a GaAs FET 4-bit digital attenuator
with a 2 dB minimum step size and 30 dB total attenuation.
This attenuator is in a hermetically sealed ceramic 16-lead
surface mount package. The AT-232 is ideally suited for
use where accuracy, fast switching, very low power
consumption and low intermodulation products are
required. Typical applications include dynamic range
setting in precision receiver circuits and other gain/leveling
control circuits. Environmental screening is available.
Contact the factory for information.
Electrical Specifications
1
(From –55°C to +85°C)
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
Reference Insertion Loss
—
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
dB
dB
dB
—
—
—
—
—
—
2.0
2.3
2.5
Attenuation Accuracy
2
Any Single Bit
Any Combination of Bits
DC - 1.0 GHz
DC - 2.0 GHz
DC - 1.0 GHz
DC - 2.0 GHz
± (0.15 dB +3% of atten setting in dB) dB
± (0.2 dB +3% of atten setting in dB) dB
Or ± 0.45 dB, whichever is greater
± (0.22 dB +3% of atten setting in dB) dB
± (0.25 dB +4% of atten setting in dB) dB
Or ± 0.45 dB, whichever is greater
VSWR
—
DC - 2.0 GHz
Ratio
—
—
1.6:1
Trise, Tfall
10% to 90%
—
ns
—
12
—
Ton, Toff
50% Control to 90/10% RF
—
ns
—
18
—
Transients
In-Band (peak-peak)
—
mV
—
25
—
1 dB Compression
Input Power
Input Power
0.05 GHz
0.5 - 2.0 GHz
dBm
dBm
—
—
+20
+28
—
—
Input IP3
For two-tone Input Power
Up to +5 dBm
0.05 GHz
0.5 - 2.0 GHz
dBm
dBm
—
—
+40
+50
—
—
Input IP2
For two-tone Input Power
Up to +5 dBm
0.05 GHz
0.5 - 2.0 GHz
dBm
dBm
—
—
+45
+68
—
—
1. All specifications apply when operated with control votlages of 0.0V to -5.0V.
2. This attenuator is guaranteed monotonic.
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