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Single Positive Control 0 to 3 Volts
15 dB Voltage Variable Attenuation
鹵 2 dB Linearity from BSL
Positive Control Logic
Low Cost MSOP-8 Plastic Package
MSOP-8
1
R .0 1 0
ID P IN
0 .0 0 7
0 .1 1 8
4X 12擄
0 .1 9 3
.0 2 0
.0 2 0
0 .1 1 8
0 .0 2 5 6 0 .0 2 1
Description
M/A-COM鈥檚 AT-118 is a linear GaAs MMIC voltage variable
absorptive attenuator in a low cost MSOP-8 surface mount
plastic package. The AT-118 is ideally suited for applications
where linear attenuation and fine tuning are required.
Typical applications include radio, cellular, GPS equipment and
automatic gain/level control circuits.
The AT-118 is fabricated with a mature 1 micron gate length
GaAs MESFET process. The process features full chip
passivation for increased performance and reliability.
1.
4X 12擄
3擄
0 .0 3 4
0 .0 1 3
0 .0 0 8
0 .0 4 0
Dimensions are in inches.
Ordering Information
Part Number
AT-118 PIN
AT-118TR
Package
MSOP 8-Lead Plastic
Forward Tape and Reel
1
1. Reference Application Note M513 for reel size information.
Electrical Specifications: T
A
= +25擄C
1
=
Parameter
Insertion Loss
Attenuation
Insertion Loss Flatness (Peak-to-Peak)
VSWR
T
rise
,
T
fall
T
on
,
T
off
Transients
1.
Test Conditions
0.5 - 3.0 GHz
0.5 - 1.0 GHz
1.0 - 3.0 GHz
0.5 - 3.0 GHz
0.5 - 3.0 GHz
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, Control to 10% RF
In-band
Units
dB
dB
dB
dB
碌S
碌S
mV
Min.
12
15
Typ.
1.6
14
16
鹵0.3
2:1
10
12
10
Max.
1.9
鹵0.5
All measurements taken at 900 GHz in a 50鈩?system unless otherwise specified. Loss varies at 0.003 dB/擄C.
Specifications subject to change without notice.
North America:
Tel. (800) 366-2266, Fax (800) 618-8883
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.
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