AT002S3-11 View Datasheet(PDF) - Alpha Industries
Part Name
Description
Manufacturer
AT002S3-11 Datasheet PDF : 2 Pages
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GaAs 35 dB IC Voltage Variable Single
Control Attenuator 0.4–2.5 GHz
AT002S3-11
Features
s Single Positive Control Voltage
s 35 dB Attenuation Range
s 8 Lead Hermetic Surface Mount Package
s Capable of Meeting MIL-STD
Requirements5
Description
The AT002S3-11 is a GaAs IC FET absorptive bridged “T”
attenuator. This attenuator operates from 0.4–2.5 GHz and
provides up to 35 dB of attenuation. The key feature of this
attenuator is the requirement of only one “positive” control
voltage. Blocking capacitors are required on the RF ports.
-11
ORIENTATION
MARK
0.180 (4.57 mm)
SQ. MAX.
0.150
(3.81 mm)
0.050
0.400 (10.16 mm)
0.380 (9.65 mm)
0.017 (0.43 mm)
0.013 (0.33 mm)
(1.27 mm)
TYP.
0.070 (1.78 mm)
0.040 (1.02 mm)
0.006 (0.15 mm)
0.004 (0.10 mm)
0.075
(1.91 mm)
MAX.
0.250 (6.35 mm)
0.200 (5.08 mm)
Electrical Specifications at 25°C
Insertion Loss (V1 = 5 V)2
Parameter1
Attenuation Range (V1 = 0)
VSWR (I/O)3
Frequency
0.4–1.0 GHz
1.0–2.0 GHz
1.0–2.5 GHz
0.4–1.0 GHz
1.0–2.5 GHz
0.4–2.5 GHz
Min.
Typ.
Max. Unit
1.5
1.7
dB
1.7
2.0
dB
2.2
2.5
dB
30
35
dB
33
38
dB
2.2:1 2.5:1
Operating Characteristics at 25°C
Parameter
Condition
Switching Characteristics
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru4
Attenuation Flatness
0–10 dB
11–20 dB
21–30 dB
31–Max.
Input Power for 1 dB Compression
For All Attenuation Levels
Control Voltages
VLow = 0 to -0.2 V @ 25 µA Max.
VHigh = 5 V @ 100 µA Typ.
Supply Voltages (VS)
5 V @ 100 µA Max.
1. All measurements made in a 50 Ω system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/°C.
3. For all attenuation levels.
4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
5. See Quality/Reliability section.
Frequency
0.4–2.5 GHz
0.9 GHz
Min.
Typ.
0.5
1.0
20
±1.0
±1.5
±3.0
±4.0
-3
Max.
Unit
µs
µs
mV
dB
dB
dB
dB
dBm
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
1
Specifications subject to change without notice. 3/99A
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