AT002S3-11
器件描述：GaAs 35 dB IC Voltage Variable Single Control Attenuator 0.4-2.5 GHz
器件厂商：ALPHA [Alpha Industries]
文件大小：32.44KB，共2页
Sponsor by e络盟器件资料摘要：
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
GaAs 35 dB IC Voltage Variable Single
Control Attenuator 0.4–2.5 GHz
Features
a73 Single Positive Control Voltage
a73 35 dB Attenuation Range
a73 8 Lead Hermetic Surface Mount Package
a73 Capable of Meeting MIL-STD
Requirements
5
-11
AT002S3-11
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.
0.180 (4.57 mm)
SQ. MAX.
0.400 (10.16 mm)
0.380 (9.65 mm)
0.150
(3.81 mm)
0.050
(1.27 mm)
TYP.
ORIENTATION
MARK
0.017 (0.43 mm)
0.013 (0.33 mm)
0.006 (0.15 mm)
0.004 (0.10 mm)
0.250 (6.35 mm)
0.200 (5.08 mm)
0.070 (1.78 mm)
0.040 (1.02 mm)
0.075
(1.91 mm)
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.
Parameter Condition Frequency Min. Typ. Max. Unit
Switching Characteristics Rise, Fall (10/90% or 90/10% RF) 0.5 µs
On, Off (50% CTL to 90/10% RF) 1.0 µs
Video Feedthru
4
20 mV
Attenuation Flatness 0–10 dB 0.4–2.5 GHz ±1.0 dB
11–20 dB ±1.5 dB
21–30 dB ±3.0 dB
31–Max. ±4.0 dB
Input Power for 1 dB Compression For All Attenuation Levels 0.9 GHz -3 dBm
Control Voltages V
Low
= 0 to -0.2 V @ 25 µA Max.
V
High
= 5 V @ 100 µA Typ.
Supply Voltages (V
S
) 5 V @ 100 µA Max.
Operating Characteristics at 25°C
Parameter
1
Frequency Min. Typ. Max. Unit
Insertion Loss (V
1
= 5 V)
2
0.4–1.0 GHz 1.5 1.7 dB
1.0–2.0 GHz 1.7 2.0 dB
1.0–2.5 GHz 2.2 2.5 dB
Attenuation Range (V
1
= 0) 0.4–1.0 GHz 30 35 dB
1.0–2.5 GHz 33 38 dB
VSWR (I/O)
3
0.4–2.5 GHz 2.2:1 2.5:1
Electrical Specifications at 25°C
Specifications subject to change without notice. 3/99A
GaAs 35 dB IC Voltage Variable Single
Control Attenuator 0.4–2.5 GHz
Features
a73 Single Positive Control Voltage
a73 35 dB Attenuation Range
a73 8 Lead Hermetic Surface Mount Package
a73 Capable of Meeting MIL-STD
Requirements
5
-11
AT002S3-11
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.
0.180 (4.57 mm)
SQ. MAX.
0.400 (10.16 mm)
0.380 (9.65 mm)
0.150
(3.81 mm)
0.050
(1.27 mm)
TYP.
ORIENTATION
MARK
0.017 (0.43 mm)
0.013 (0.33 mm)
0.006 (0.15 mm)
0.004 (0.10 mm)
0.250 (6.35 mm)
0.200 (5.08 mm)
0.070 (1.78 mm)
0.040 (1.02 mm)
0.075
(1.91 mm)
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.
Parameter Condition Frequency Min. Typ. Max. Unit
Switching Characteristics Rise, Fall (10/90% or 90/10% RF) 0.5 µs
On, Off (50% CTL to 90/10% RF) 1.0 µs
Video Feedthru
4
20 mV
Attenuation Flatness 0–10 dB 0.4–2.5 GHz ±1.0 dB
11–20 dB ±1.5 dB
21–30 dB ±3.0 dB
31–Max. ±4.0 dB
Input Power for 1 dB Compression For All Attenuation Levels 0.9 GHz -3 dBm
Control Voltages V
Low
= 0 to -0.2 V @ 25 µA Max.
V
High
= 5 V @ 100 µA Typ.
Supply Voltages (V
S
) 5 V @ 100 µA Max.
Operating Characteristics at 25°C
Parameter
1
Frequency Min. Typ. Max. Unit
Insertion Loss (V
1
= 5 V)
2
0.4–1.0 GHz 1.5 1.7 dB
1.0–2.0 GHz 1.7 2.0 dB
1.0–2.5 GHz 2.2 2.5 dB
Attenuation Range (V
1
= 0) 0.4–1.0 GHz 30 35 dB
1.0–2.5 GHz 33 38 dB
VSWR (I/O)
3
0.4–2.5 GHz 2.2:1 2.5:1
Electrical Specifications at 25°C