Digital Attenuator, 50 dB, 6-Bit,
TTL Driver, DC - 2 GHz
V 5.00
AT20-0106
Features
n
Attenuation: 1 dB steps to 50 dB
n
Temperature Stability: ± 0.18 dB from –40°C to +85°C
n
n
n
n
n
n
CR-13
Typical
Low DC Power Consumption
Surface Mount Package
Integral TTL Driver
High Intercept Point
Low Cost/High Performance
50 Ohm Nominal Impedance
Description
M/A-COM’s AT20-0106 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
ceramic 24-lead surface mount package. The AT20-0106 is
ideally suited for use where accuracy, fast switching, 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. Available with enhanced performance as
fully hermetic version. Environmentally screenable as P/N
AT-106.
Electrical Specifications: T
A
= 25°C
1
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
3.0
3.5
4.0
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
—
—
—
—
50
+20
+28
+34
+46
+75
+79
5.0
—
2.0:1
1.8:1
50
150
—
—
—
—
—
—
—
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. ]
