Digital Attenuator, 50 dB, 6-Bit,
TTL Driver, DC - 2 GHz
V 5.00
AT-106
Features
n
Attenuation: 1 dB steps to 50 dB
n
Temperature Stability: ± 0.18 dB from –55°C to +85°C
n
n
n
n
CR-13
Typical
Low DC Power Consumption
Hermetic Surface Mount Package
Integral TTL Driver
50 Ohm Nominal Impedance
Description
M/A-COM’s AT-106 is a GaAs FET 6-bit digital attenuator
with a 1 dB minimum step size and 50 dB total attenuation.
This attenuator and integral TTL driver is in a hermetically
sealed ceramic 24-lead surface mount package. The AT-
106 is ideally suited for use where accuracy, fast switching,
very low power consumption and low intermodulation
products are required. Typical applications include dy-
namic 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
Reference Insertion Loss
Test Conditions
—
Frequency
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.0 GHz
DC - 2.0 GHz
DC - 1.5 GHz
0.05 - 0.10 GHz
0.101 - 2.0 GHz
—
—
—
0.05 GHz
0.5 - 2.0 GHz
0.05 GHz
0.5 - 2.0 GHz
0.05 GHz
0.5 - 2.0 GHz
—
—
Units
dB
dB
dB
dB
dB
dB
Ratio
Ratio
ns
ns
mV
dBm
dBm
dBm
dBm
dBm
dBm
V
V
Min
—
—
—
Typ
—
—
—
Max
3.6
4.1
4.6
Attenuation Accuracy
2
Any Single Bit
Any Combination of Bits
(For attenuation to 26 dB)
Any Combination of Bits
(For attenuation 27 to 50 dB)
—
10% to 90%
50% Control to 90/10% RF
In-Band (peak-peak)
Input Power
Input Power
For two-tone Input Power
Up to +5 dBm
For two-tone Input Power
Up to +5 dBm
—
—
± (0.3 +4% of atten. setting)
± (0.4 +4% of atten. setting)
± (0.5 +5% of atten. setting)
—
—
—
—
—
—
—
—
—
—
—
4.5
-8.0
—
—
9
45
40
+20
+28
+34
+46
+75
+79
5.0
—
2.0:1
1.8:1
—
—
—
—
—
—
—
—
—
5.5
-5.0
VSWR
Trise, Tfall
Ton, Toff
Transients
1 dB Compression
Input IP3
Input IP2
Vcc
Vee
1. All specifications apply when operated with bias voltages of +5V for Vcc and –5.0V for Vee.
2. This attenuator is guaranteed monotonic.
MA-COM [ M/A-COM TECHNOLOGY SOLUTIONS, INC. ]
