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What is AT-119?

This electronic component, produced by the manufacturer "Tyco Electronics", performs the same function as "2.25 Volt Voltage Variable Absorptive Attenuator - 40 dB/ 1.8.2.5 GHz".


AT-119 Datasheet PDF - Tyco Electronics

Part Number AT-119
Description 2.25 Volt Voltage Variable Absorptive Attenuator - 40 dB/ 1.8.2.5 GHz
Manufacturers Tyco Electronics 
Logo Tyco Electronics Logo 


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2.25 Volt Voltage Variable Absorptive
Attenuator - 40 dB, 1.8—2.5 GHz
Features
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
Functional Schematic
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
1 23
RF 100 pF GND 100 pF RF
Applications
The AT-119 is ideally suited for applications that require
fine tuning, linear attenuation with voltage, and very low
power consumption.
Typical applications for the AT-119 include automatic gain
control circuits in satellite radio receivers and other wireless
receivers.
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
@ TA = +25 °C (unless otherwise specified)
Parameter
Absolute Maximum
Maximum Input Power
+21 dBm
Supply Voltage VCC
ControlVoltage VCTL
Operating Temperature
-1 V, + 8 V
-1 V, VCC +0.5 V
-40°C to +85°C
Storage Temperature
-65°C to +150°C
1. Exceeding any one or a combination of these limits may
cause permanent damage.
Electrical Specifications @ TA = +25 °C, Frequency = 2.4 GHz, VCC = 3.3 VDC1
Parameters
Test Conditions
Units
Min
Typ Max
Minimum Insertions Loss
VCTL = 2.25 VDC
dB
3.0 3.2
Maximum Attenuation
VCTL = 0.5 VDC
dB 37
Attenuation Slope
0.75 VDC < VCTL < 1.75 VDC
dB/V
24
Return Loss
Input Power for 1 dB Change in Attenua-
tion
Input 3rd Order Intercept Point
0.6 VDC < VCTL < 1.75 VDC
0 VDC < VCTL < 3.0 VDC
0 VDC < VCTL < 3.0 VDC
dB
dBm
dBm
>12
>10
>20
Switching Speed
50% VCTL to 10% / 90% RF
nSec
180
Transients
VCTL = 3 VDC, In-Band
mV
10
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.


Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AT-119 electronic component.


Information Total 4 Pages
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