파트넘버.co.kr AT-119TR-3000 데이터시트 PDF


AT-119TR-3000 반도체 회로 부품 판매점

2.25 Volt Voltage Variable Absorptive Attenuator - 40 dB/ 1.8.2.5 GHz



Tyco Electronics 로고
Tyco Electronics
AT-119TR-3000 데이터시트, 핀배열, 회로
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.


AT-119TR-3000 데이터시트, 핀배열, 회로
2.25 Volt Voltage Variable Absorptive Attenuator, 40 dB, 1.8 - 2.5 GHz
AT-119
Typical Performance Curves
Attenuation vs. Control Voltage, +25 °C
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
3.0
2.4 GHz
1.8 GHz
2.1 GHz
2.5 2.0 1.5 1.0 0.5
CONTROL VOLTAGE (Volts)
0.0
Attenuation vs. Frequency @ 0.0 VDC
for Control Voltage
0
5
10
15
20
25
30
35
40
45
50
55
60
500
+25 deg C
+85 deg C
1000
1500
2000
FREQUENCY (MHz)
-40 deg C
2500
3000
Insertion Loss vs. Frequency @ 2.25
VDC for Control Voltage
4.0
3.5
3.0
+85 deg C
+25 deg C
2.5
2.0
-40 deg C
1.5
1.0
0.5
0.0
500
1000
1500
2000
2500
FREQUENCY (MHz)
3000
Return Loss vs. Control Voltage
@ +25 °C
0
-5
2.4 GHz
2.1 GHz
-10
-15
-20
-25 1.8 GHz
-30
3.0
2.5 2.0 1.5 1.0 0.5
CONTROL VOLTAGE (VDC)
0.0
Insertion Loss Delta Normalized
to +25 °C
6
-40oC
4
2
0
-2
-4
-6
3.0
2.5
2.4 GHz
1.8 GHz
2.1 GHz
2.0 1.5 1.0
CONTROL VOLTAGE (VDC)
0.5
0.0
Insertion Loss Delta Normalized
to +25 °C
6
+85oC
4
2
0
-2
-4
-6
3.0
2.5
1.8 GHz
2.4 GHz
2.1 GHz
2.0 1.5 1.0
CONTROL VOLTAGE (VDC)
0.5
0.0
Specifications subject to change without notice.
North America: Tel. (800) 366-2266
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
2




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2.25 Volt Voltage Variable Absorptive Attenuator - 40 dB/ 1.8.2.5 GHz - Tyco Electronics