AT-118 Datasheet, PDF (1/3 Pages) Tyco Electronics – Voltage Variable Absorptive Attenuator

Voltage Variable
Absorptive Attenuator
AT-118
Features
• Single Positive Control 0 to 3 Volts
• 15 dB Voltage Variable Attenuation
• ± 2 dB Linearity from BSL
• Positive Control Logic
• Low Cost MSOP-8 Plastic Package
Description
M/A-COM’s 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.
MSOP-8¹
R .010
ID P IN
0 .1 9 3 ^{0 .1 1 8}
0 .0 0 7
4X 12°
.0 2 0
.0 2 0
4X 12°
0 .0 3 4
0.0256 ^0.021
0 .1 1 8
3°
0 .0 4 0
0 .0 1 3
1. Dimensions are in inches.
0 .0 0 8
Ordering Information
Part Number
Package
AT-118 PIN
AT-118TR
MSOP 8-Lead Plastic
Forward Tape and Reel¹
1. Reference Application Note M513 for reel size information.
Electrical Specifications: T_A = +25°C¹⁼
Parameter
Test Conditions
Insertion Loss
0.5 - 3.0 GHz
Attenuation
0.5 - 1.0 GHz
1.0 - 3.0 GHz
Insertion Loss Flatness (Peak-to-Peak) 0.5 - 3.0 GHz
VSWR
0.5 - 3.0 GHz
T_rise, T_fall
T_on, T_off
Transients
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, Control to 10% RF
In-band
Units
dB
dB
dB
dB
µS
µS
mV
1. All measurements taken at 900 GHz in a 50Ω system unless otherwise specified. Loss varies at 0.003 dB/°C.
Min.
12
15
Typ.
1.6
14
16
±0.3
2:1
10
12
10
Max.
1.9
±0.5
Specifications subject to change without notice.
North America: Tel. [phone], Fax [phone]
Asia/Pacific: Tel.[phone], Fax [phone]
Europe: Tel. [phone], Fax[phone]
Visit www.macom.com for additional data sheets and product information.
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