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参数资料
| 型号： | AT002N3-12 |
| 厂商： | SKYWORKS SOLUTIONS INC |
| 元件分类： | 衰减器 |
| 英文描述： | 0.3 MHz - 2500 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 1.3 dB INSERTION LOSS-MAX |
| 封装： | PLASTIC, SOIC-8 |
| 文件页数： | 1/2页 |
| 文件大小： | 27K |
| 代理商： | AT002N3-12 |
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
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Characteristics4
Rise, Fall (10/90% or 90/10% RF)
7
ns
On, Off (50% CTL to 90/10% RF)
10
ns
Video Feedthru
20
mV
Input Power for 1 dB Compression
For All Attenuation Levels
0.5–3 GHz
0
dBm
0.05 GHz
-3
dBm
Control Voltages
VLow = 0 to -0.2 V @ 20 A Max.
VHigh = -5 V @ 50 A Max.
GaAs IC 30 dB Voltage Variable Attenuator
Dual Bias DC–2.5 GHz
Features
■ Dual Voltage Control
■ Low Insertion Loss < (1.2 dB)
■ Bridged “T” Design, Non-Reflective
■ Low Cost SOIC-8 Plastic Package
SOIC-8
AT002N3-12
Description
The AT002N3-12 DC–2 GHz GaAs FET IC non-reflective
bridged “T” attenuator provides up to 30 dB of “non-
reflective” attenuation. The control voltage requirements
are 0 to -5 V.
This attenuator has two independent voltage controls,
which must be adjusted in a prescribed manner to obtain
the desired attenuation under non-reflective conditions.
Refer to the Application Notes section, “Dual Voltage
Controlled VVA.”
Applications for these fast attenuators are AGC circuits
and variable level control in various military and
telecommunications systems.
Parameter1
Frequency2
Min.
Typ.
Max.
Unit
Insertion Loss3
DC–1.0 GHz
0.9
1.0
dB
DC–2.0 GHz
1.1
1.2
dB
DC–2.5 GHz
1.2
1.3
dB
Attenuation
DC–1.0 GHz
30
31
dB
DC–2.0 GHz
27
29
dB
DC–2.5 GHz
23
27
dB
VSWR (I/O)
DC–2.5 GHz
1.6:1
1.8:1
Electrical Specifications at 25°C (0, -5 V)
Operating Characteristics at 25°C (0, -5 V)
1. All measurements made in a 50
system, unless otherwise specified.
2. DC = 300 kHz.
3. Insertion loss changes by 0.003 dB/°C.
4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
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
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