Digital Attenuator, 32 dB, 2-Bit,
TTL Driver, DC - 2.0 GHz
V 7.00
AT-273
Features
Attenuation: 16.0 dB Steps to 32 dB
Low DC Power Consumption
Hermetic Surface Mount Package
Integral TTL Driver
50 ohm Impedance
Temperature Stability: 鹵0.18 dB from -55擄C to +85擄C
Typ.
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Tape and Reel Packaging Available
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n
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n
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CR-11
Description
M/A-COM's AT-273 is a GaAs FET digital attenuator
with a 16.0 dB minimum step size and a 32 dB total
attenuation range. This attenuator and integral TTL driver
is in a hermetically sealed ceramic 16-lead surface mount
package. The AT-273 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: T
A
= 25擄C
Parameter
Insertion Loss
Test Conditions
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Frequency
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.0 GHz
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.0 GHz
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0.05 GHz
0.5 - 2.0 GHz
0.05 GHz
0.5 - 2.0 GHz
0.05 GHz
0.5 - 2.0 GHz
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Units
dB
dB
dB
Min
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Typ
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Max
1.6
1.7
1.9
Attenuation Accuracy
C1 Bit
Full Attenuation (32 dB)
Full Attenuation (32 dB)
Full Attenuation (32 dB)
Full Range
10% to 90%
50% Cntl to 90% / 10% RF
In-Band (peak-to-peak)
Input Power
Input Power
Two-tone inputs up to +5 dBm
Two-tone inputs up to +5 dBm
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Logic (0) TTL
Logic (1) TTL
鹵 3% of attenuation setting in dB
鹵 3% of attenuation setting in dB
鹵 3% of attenuation setting in dB, -1 dB
鹵 3% of attenuation setting in dB, -3 dB
Ratio
ns
ns
mV
dBm
dBm
dBm
dBm
dBm
dBm
V
V
V
V
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4.5
-8.0
0.0
2.0
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7
28
30
+20
+28
+38
+48
+44
+68
5.0
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1.6:1
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5.5
-5.0
0.8
5.0
VSWR
Trise, Tfall
Ton, Toff
Transients
1 dB Compression
Input IP3
Input IP2
Vcc
-Vee
Vctl
Vctl
AT-273TR相關(guān)型號(hào)PDF文件下載
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