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參數(shù)資料
| 型號： | AT-119TR-3000 |
| 英文描述： | 2.25 Volt Voltage Variable Absorptive Attenuator - 40 dB, 1.8.2.5 GHz |
| 中文描述： | 2.25伏特電壓可變吸收衰減器- 40分貝，1.8.2.5吉赫 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 135K |
| 代理商： | AT-119TR-3000 |
Parameter
Absolute Maximum
Maximum Input Power
+21 dBm
Supply Voltage V
CC
-1 V, + 8 V
ControlVoltage V
CTL
-1 V, V
CC
+0.5 V
Operating Temperature
-40°C to +85°C
Storage Temperature
-65°C to +150°C
Absolute Maximum Ratings
1
@ T
A
= +25 °C (unless otherwise specified)
1. Exceeding any one or a combination of these limits may
cause permanent damage.
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
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
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.
2.25 Volt Voltage Variable Absorptive
Attenuator - 40 dB, 1.8—2.5 GHz
A
Functional Schematic
1. V
CC
= +3.3 V
@ 50 μA max.
2. V
= 0 V
to +3.3 VDC @ 50 μA max.
3. External DC blocking capacitors are required on all RF
ports.
Electrical Specifications @ T
A
= +25 °C, Frequency = 2.4 GHz, V
CC
= 3.3 V
DC
1
Parameters
Test Conditions
Units
Min
Typ
Max
Minimum Insertions Loss
V
CTL
= 2.25 V
DC
dB
3.0
3.2
Maximum Attenuation
V
CTL
= 0.5 V
DC
dB
37
Attenuation Slope
0.75 V
DC
< V
CTL
< 1.75 V
DC
dB/V
24
Return Loss
0.6 V
DC
< V
CTL
< 1.75 V
DC
dB
>12
Input Power for 1 dB Change in Attenua-
tion
Input 3
rd
Order Intercept Point
0 V
DC
< V
CTL
< 3.0 V
DC
dBm
>10
0 V
DC
< V
CTL
< 3.0 V
DC
dBm
>20
Switching Speed
50% V
CTL
to 10% / 90% RF
nSec
180
Transients
mV
10
V
CTL
= 3 V
DC,
In-Band
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.
3
RF
2
GND
1
RF
V
CTL
4
V
CC
5
100 pF
100 pF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT-119SMB | 2.25 Volt Voltage Variable Absorptive Attenuator - 40 dB, 1.8.2.5 GHz |
| AT-119 | 2.25 Volt Voltage Variable Absorptive Attenuator - 40 dB, 1.8.2.5 GHz |
| AT-119TR | 2.25 Volt Voltage Variable Absorptive Attenuator - 40 dB, 1.8.2.5 GHz |
| AT-1200 | High Power Fixed Attenuators (Heat sink Mounting Type) |
| AT-1220-H | High Power Fixed Attenuators (Heat sink Mounting Type) |
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