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AT-119 PDF预览

AT-119

更新时间: 2024-11-20 22:47:55
品牌 Logo 应用领域
泰科 - TE 衰减器
页数 文件大小 规格书
4页 138K
描述
2.25 Volt Voltage Variable Absorptive Attenuator - 40 dB, 1.8.2.5 GHz

AT-119 技术参数

是否Rohs认证: 不符合生命周期:Transferred
Reach Compliance Code:unknown风险等级:5.15
安装特点:SURFACE MOUNT端子数量:5
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装等效代码:TSOP5/6,.11,37
电源:3.3 V子类别:RF/Microwave Attenuators
表面贴装:YES技术:GAAS
Base Number Matches:1

AT-119 数据手册

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2.25 Volt Voltage Variable Absorptive  
Attenuator - 40 dB, 1.8—2.5 GHz  
Features  
Functional Schematic  
Single Positive Voltage Control 0 to +2.25 Volts  
>50 dB Attenuation Range at 2.1 GHz  
Low DC Power Consumption  
Low Cost SOT-25 Plastic Package  
Tape and Reel Packaging Available  
VCC  
5
VCTL  
4
Description  
M/A-COM’s AT-119 is a GaAs MMIC voltage variable  
absorptive attenuator in a low cost, SOT-25 five-lead,  
surface mount plastic package. M/A-COM fabricates the  
AT-119 with a proven monolithic GaAs self-aligned gate  
process that features full chip passivation for performance  
and reliability  
2
GND  
3
RF  
1
RF  
100 pF  
100 pF  
Applications  
The AT-119 is ideally suited for applications that require  
fine tuning, linear attenuation with voltage, and very low  
power consumption.  
1. VCC = +3.3 VDC @ 50 µA max.  
2. VCTL = 0 VDC to +3.3 VDC @ 50 µA max.  
3. External DC blocking capacitors are required on all RF  
ports.  
Absolute Maximum Ratings1  
Typical applications for the AT-119 include automatic gain  
control circuits in satellite radio receivers and other wireless  
receivers.  
@ TA = +25 °C (unless otherwise specified)  
Parameter  
Maximum Input Power  
Supply Voltage VCC  
ControlVoltage VCTL  
Operating Temperature  
Storage Temperature  
Absolute Maximum  
+21 dBm  
-1 V, + 8 V  
-1 V, VCC +0.5 V  
-40°C to +85°C  
-65°C to +150°C  
1. Exceeding any one or a combination of these limits may  
cause permanent damage.  
1
Electrical Specifications @ TA = +25 °C, Frequency = 2.4 GHz, VCC = 3.3 VDC  
Parameters  
Minimum Insertions Loss  
Maximum Attenuation  
Attenuation Slope  
Return Loss  
Test Conditions  
Units  
Min  
Typ  
Max  
VCTL = 2.25 VDC  
dB  
3.0  
3.2  
VCTL = 0.5 VDC  
dB  
37  
24  
0.75 VDC < VCTL < 1.75 VDC  
0.6 VDC < VCTL < 1.75 VDC  
dB/V  
dB  
>12  
>10  
Input Power for 1 dB Change in Attenua-  
tion  
0 VDC < VCTL < 3.0 VDC  
dBm  
Input 3rd Order Intercept Point  
0 VDC < VCTL < 3.0 VDC  
50% VCTL to 10% / 90% RF  
VCTL = 3 VDC, In-Band  
dBm  
nSec  
mV  
>20  
180  
10  
Switching Speed  
Transients  
1. All measurements in a 50-τ system unless otherwise specified. The RF ports must be blocked outside of the package from  
ground or any other voltage.  

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