Digital Attenuator, 31.0 dB, 5-Bit,
TTL Driver, DC-6.0 GHz
V 5.00
AT90-0001
Features
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n
n
n
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CSP-1
Attenuation: 1.0 dB Steps to 31 dB
High Accuracy to 6 GHz
Small Footprint, JEDEC Package
Integral TTL driver
50 ohm impedance
Test boards are available
Tape and Reel Packaging Available
Description
M/A-COM鈥檚 AT90-0001 is a GaAs FET 5-bit digital at-
tenuator with an integral TTL driver. Step size is 1.0 dB
providing 31 dB total attenuation range. This device is in a
32 lead FQFP-N surface mount package. Due to superior
grounding techniques this digital attenuator offers superior
performance to 6 GHz. The AT90-0001 is ideally suited for
use where accuracy, fast speed, very low power consump-
tion and low costs are required.
Electrical Specifications T
A
= +25擄C
Parameter
Insertion Loss
Test Conditions
鈥?/div>
Frequency
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 6.0 GHz
DC - 6.0 GHz
DC - 2.0 GHz
DC - 6.0 GHz
50 MHz
0.5 - 6.0 GHz
50 MHz
0.5 - 6.0 GHz
50 MHz
0.5-6.0 GHz
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Units
dB
dB
dB
dB
dB
Ratio
Ratio
dBm
dBm
dBm
dBm
dB
dB
V
V
nS
nS
V
V
mA
mA
Min
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
4.75
-8.0
鈥?/div>
鈥?/div>
0.0
2.0
鈥?/div>
鈥?/div>
Typical
2.5
3.3
5.0
鈥?/div>
鈥?/div>
1.4:1
1.7:1
+22
+28
+43
+60
+37
+48
5.0
-5.0
25
15
-
-
0.2
-0.2
Max
3.1
3.8
5.8
鹵(0.3 +4% of atten.)
鹵(0.3 +5% of atten.)
1.7:1
2.4:1
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
5.25
-4.75
鈥?/div>
鈥?/div>
0.8
5.0
6
-1
Attenuation
Accuracy
VSWR
1 dB Compression
Input IP2
Input IP3
Vcc
-Vee
Switching Speed
Logic "0"
Logic "1"
Icc
-Iee
1 to 24 dB Bits
25 to 31 dB Bits
Full Range
鈥?/div>
鈥?/div>
Two tone inputs to +5 dBm
Two-tone inputs up to +5 dBm
鈥?/div>
鈥?/div>
50% Cntl to 90%/10% RF
10% to 90% or 90% to 10%
Sink Current is 20 碌A(chǔ) Max.
Source Current is 20 碌A(chǔ) Max.
Vcc min to max, Logic 鈥?鈥?or 1鈥?/div>
Vee min to max, Logic 鈥?鈥?or 1鈥?/div>
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