AT-109 Datasheet, PDF (1/3 Pages) Tyco Electronics – Voltage Variable Absorptive Attenuator, 35 dB 0.5 - 2 GHz

Voltage Variable Absorptive Attenuator, 35 dB
0.5 - 2 GHz
AT-109
Features
q Single Positive Voltage Control 0 to +5 Volts
q 35 dB Attenuation Range at 0.9 GHz
q ±2 dB Linearity from BSL
q Low DC Power Consumption
q Temperature Range: -40°C to +85°C
q Low-Cost SOIC 8 Plastic Package
q Tape and Reel Packaging Available
SO-8
V 2.00
Description
M/A-COM’s AT-109 is a GaAs MMIC voltage variable
absorptive attenuator in a low-cost SOIC 8-lead surface
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 required. Typical
applications include radio, cellular, GPS equipment and
automatic gain/level control circuits.
The AT-109 is fabricated with a monolithic GaAs MMIC
using a mature 1-micron process. The process features
full chip passivation for increased performance and reli-
ability.
Ordering Information
Part No.
AT-109
AT-109TR
AT-109RTR
Package
SOIC 8-Lead Plastic Package
Forward Tape & Reel*
Reverse Tape & Reel*
* If specific reel size is required, consult factory for part number
assignment.
Electrical Specifications¹, TA = +25°C
Parameter
Insertion Loss
Attenuation
Flatness
(Peak-to-Peak)
VSWR
Trise, Tfall
Ton, Toff
Transients
Test Conditions¹
Unit
Min.
Typ.
0.5 - 1.0 GHz
dB
2.5
1.0 - 2.0 GHz
dB
3.2
0.5 - 1.0 GHz
dB
35
1.0 - 2.0 GHz
dB
30
0.5 - 1.0 GHz
dB
±0.5
1.0 - 2.0 GHz
dB
±1.2
2:1
10% to 90% RF, 90% to 10% RF
␮S
25
50% Control to 90% RF, Control to 10% RF
␮S
35
In-band
mV
12
1. All measurements at 1 GHz in a 50-⍀ system, unless otherwise specified.The RF ports must be blocked outside of the package
from ground or any other voltage.
Max
2.7
3.5
±0.8
±1.5