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參數資料
| 型號： | AT002S3-12 |
| 廠商： | SKYWORKS SOLUTIONS INC |
| 元件分類： | 衰減器 |
| 英文描述： | 400 MHz - 2500 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 2.9 dB INSERTION LOSS-MAX |
| 封裝： | SOIC-8 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 27K |
| 代理商： | AT002S3-12 |
Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 3/99A
Parameter1
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Characteristics4
Rise, Fall (10/90% or 90/10% RF)
1.0
s
On, Off (50% CTL to 90/10% RF)
1.5
s
Video Feedthru
20
mV
Attenuation Flatness
0–10 dB
0.8–2.0 GHz
±1.0
dB
11–20 dB
0.8–2.0 GHz
±1.5
dB
21–30 dB
0.8–2.0 GHz
±3.5
dB
31–Max.
0.8–2.0 GHz
±4.5
dB
Input Power for 1 dB Compression
Worst Case For All Attenuation States
0.9 GHz
-3
dBm
Control Voltages
VLow = 0 to 0.2 V @ 50 A Max.
VHigh = +5 V @ 100 A Max.
Supply Voltages (VS)
+5 V @ 100 A Max.
GaAs IC 35 dB Voltage Variable Attenuator
Single Positive Control 0.4–2.5 GHz
Features
■ +5 V Operation
■ Single Positive Voltage Control
■ 35 dB Attenuation Range
■ Low Insertion Loss (1.7 dB @ 0.9 GHz)
SOIC-8
AT002S3-12
0.049
(1.24 mm)
0.016
(0.41 mm)
0.016 MAX.
(0.41 mm) x
45 CHAMFER
PIN 1
0.197 (5.00 mm)
0.189 (4.80 mm)
0.068
(1.73 mm) MAX.
0.010 (0.25 mm)
0.004 (0.10 mm)
0.010 (0.25 mm)
0.007 (0.17 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
8
MAX.
0.020 (0.51 mm) MAX.
0.244 (6.20 mm)
0.228 (5.80 mm)
0.050 (1.27 mm) BSC
PIN 8
PIN 1
INDICATOR
Description
The AT002S3-12 GaAs IC FET bridge “T” attenuator
provides 35 dB minimum absolute attenuation at 900 MHz.
The key feature of this attenuator is the requirement of only
one “positive” control voltage. Blocking capacitors are
required on the RF ports.
Parameter1
Frequency
Min.
Typ.
Max.
Unit
Insertion Loss (V1 = 5 V)2
0.4–1.0 GHz
1.5
1.7
dB
1.0–2.0 GHz
2.0
2.4
dB
2.0–2.5 GHz
2.5
2.9
dB
Absolute Attenuation (V1 = 0 V)
0.4–0.6 GHz
30
32
dB
0.6–1.0 GHz
35
37
dB
1.0–1.5 GHz
30
33
dB
1.5–2.0 GHz
27
30
dB
2.0–2.5 GHz
25
27
dB
VSWR (I/O)3
0.4–2.5 GHz
2.5:1
Electrical Specifications at 25°C (VS = 5 V)
Operating Characteristics at 25°C (VS = 5 V)
1. All measurements made in a 50
system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/°C.
3. For all states.
4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
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