AT-109

Manufacturer Part NumberAT-109
ManufacturerTyco Electronics
AT-109 datasheet
 


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Voltage Variable Absorptive Attenuator, 35 dB
0.5 - 2 GHz
F e a t u r e s
Single Positive Voltage Control 0 to +5 Vo l t s
35 dB Attenuation Range at 0.9 GHz
±2 dB Linearity from BSL
Low DC Power Consumption
Te m p e r a t u re Range: -40°C to +85°C
Low-Cost SOIC 8 Plastic Package
Tape and Reel Packaging Av a i l a b l e
D e s c r i p t i o n
M/A-COM’s AT-109 is a GaAs MMIC voltage variable
absorptive attenuator in a low-cost SOIC 8-lead surf a c e
mount plastic package. The AT-109 is more linear than
the higher attenuation range AT-108. The AT-109 is ide-
ally suited for use where linear attenuation fine tuning
and very low power comsumption are re q u i red. Ty p i c a l
applications include radio, cellular, GPS equipment and
automatic gain/level control circ u i t s .
The AT-109 is fabricated with a monolithic GaAs MMIC
using a mature 1-micron process. The process feature s
full chip passivation for increased perf o rmance and re l i-
a b i l i t y .
Electrical Specifications
1
, T A = +25°C
Parameter
Insertion Loss
Attenuation
Flatness
(Peak-to-Peak)
VSWR
Trise, Tfall
Ton, Toff
50% Control to 90% RF, Control to 10% RF
Transients
1. All measurements at 1 GHz in a 50-
from ground or any other voltage.
S O - 8
O rdering Info r m a t i o n
AT-109
AT-109TR
AT-109RTR
If specific reel size is required, consult factory for part number
*
assignment.
1
Test Conditions
0.5 - 1.0 GHz
1.0 - 2.0 GHz
0.5 - 1.0 GHz
1.0 - 2.0 GHz
0.5 - 1.0 GHz
1.0 - 2.0 GHz
10% to 90% RF, 90% to 10% RF
In-band
system, unless otherwise specified.The RF ports must be blocked outside of the package
Part No.
Package
SOIC 8-Lead Plastic Package
Forward Tape & Reel*
Reverse Tape & Reel*
Unit
Min.
dB
dB
dB
35
dB
30
dB
dB
S
S
mV
AT-109
V 2.00
Typ.
Max
2.5
2.7
3.2
3.5
±0.5
±0.8
±1.2
±1.5
2:1
25
35
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