Digital Attenuator, 50 dB, 6-Bit,
TTL Driver, DC-2.4 GHz
V 5.00
AT90-1106
Features
n
n
n
n
n
n
n
CSP-1
Attenuation: 1 dB Steps to 50 dB
Single Positive Supply
Contains Internal DC to DC Converter
Low DC Power Consumption
Small Footprint, JEDEC Package
Integral TTL Driver
50 ohm Impedance
Description
M/A-COM's AT90-1106 is a GaAs FET 6-bit digital
attenuator with integral TTL driver. Step size is 1 dB pro-
viding a 50 dB total attenuation range. This device is in a
FQFP-N plastic surface mount package. The AT90-1106 is
ideally suited for use where accuracy, fast speed, very low
power consumption and low costs are required.
Electrical Specifications T
A
= +25擄C
Parameter
Insertion Loss
Attenuation
Accuracy
VSWR
Switching Speed
1 dB Compression
Input IP
3
+Vcc
Logic 鈥?鈥?/div>
Logic 鈥?鈥?/div>
Icc
Test Conditions
鈥?/div>
Individual Bits 1-2-4-8-16-32 dB
Any Combination of Bits
1 to 50 dB
Full Range
50% Cntl to 90%/10% RF
10% to 90% or 90% to 10%
鈥?/div>
鈥?/div>
Two-tone inputs up to +5 dBm
鈥?/div>
Sink Current is 20 碌A(chǔ) max.
Source Current is 20 碌A(chǔ) max.
Vcc min to max,
Logic 鈥?鈥?or 鈥?鈥?/div>
Frequency
DC - 2.4 GHz
DC - 2.4 GHz
DC - 2.4 GHz
DC - 2.4 GHz
鈥?/div>
鈥?/div>
50 MHz
0.5 - 2.40 GHz
50 MHz
0.5-2.4 GHz
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Units
dB
dB
dB
Ratio
nS
nS
dBm
dBm
dB
dB
V
V
V
mA
Min
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
4.75
0.0
2.0
鈥?/div>
Typical
5.5
鈥?/div>
鈥?/div>
1.8:1
75
20
+21
+29
+35
+48
5.0
鈥?/div>
鈥?/div>
6
Max
6.0
鹵(.3 +5% of atten setting)
鹵(.5 +8% of atten setting)
2:1
150
50
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