GaAs 30 dB IC Voltage Variable Dual
Control Attenuator DC鈥? GHz
AT004N3-11
Features
s
Dual Control Voltages
s
Low Insertion Loss
s
8 Lead Hermetic Surface Mount Package
s
Capable of Meeting MIL-STD
Requirements
5
-11
ORIENTATION
MARK
0.180 (4.57 mm)
SQ. MAX.
0.150
(3.81 mm)
0.017 (0.43 mm)
0.013 (0.33 mm)
0.050
(1.27 mm)
TYP.
0.400 (10.16 mm)
0.380 (9.65 mm)
Description
The AT004N3-11 is a GaAs IC FET non-reflective bridged
鈥淭鈥?attenuator. This device provides over 30 dB of
鈥渕atched鈥?attenuation with the input and output VSWR
less than 1.5:1 under all attenuation values. The
applications for these fast attenuators are AGC circuits and
variable level control in high reliability and
telecommunication systems.
0.070 (1.78 mm)
0.040 (1.02 mm)
0.075
(1.91 mm)
MAX.
0.006 (0.15 mm)
0.004 (0.10 mm)
0.250 (6.35 mm)
0.200 (5.08 mm)
Electrical Specifications at 25擄C
Parameter
1
Insertion Loss
2
Frequency
4
DC鈥?.0 GHz
DC鈥?.0 GHz
DC鈥?.0 GHz
DC鈥?.0 GHz
DC鈥?.0 GHz
DC鈥?.0 GHz
DC鈥?.0 GHz
DC鈥?.0 GHz
30
29
26
Min.
Typ.
0.8
1.0
1.2
35
33
30
1.25:1
1.40:1
1.3:1
1.5:1
Max.
1.0
1.2
1.4
Unit
dB
dB
dB
dB
dB
dB
Attenuation Range
VSWR (I/O)
Operating Characteristics at 25擄C
Parameter
Switching Characteristics
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
3
For All Attenuation Levels
V
Low
= 0 to -0.2 V @ 20
碌A(chǔ)
Max.
V
High
= -5 V @ 50
碌A(chǔ)
Max.
0.5鈥? GHz
0.05 GHz
Frequency
Min.
Typ.
7
10
20
0
-3
Max.
Unit
ns
ns
mV
dBm
dBm
Input Power for 1 dB Compression
Control Voltages
1. All measurements made in a 50
鈩?/div>
system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/擄C.
3. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
4. DC = 300 kHz.
5. See Quality/Reliability section.
Alpha Industries, Inc.
[781] 935-5150
鈥?/div>
Fax
[617] 824-4579
鈥?/div>
Email
sales@alphaind.com
鈥?/div>
www.alphaind.com
Specifications subject to change without notice. 3/99A
1
1
2
