MA-COM AT-110-2

Voltage Variable Absorptive Attenuator
30 dB, 0.5-2.0 GHz
Functional Schematic 1,2,3
Features
•
•
•
•
•
•
•
•
AT-110-2
V1
Single Positive Voltage Control: 0 to +5 Volts
30 dB Voltage Variable Attenuation
± 2 dB Linearity from BSL
Low DC Power Consumption
Temperature Range: -40°C to +85°C
SOIC-8 Plastic Package
Tape and Reel Packaging Available
Fast Switching Speed
8
7
6
5
1
2
3
4
Description
M/A-COM’s AT-110-2 is a GaAs MMIC voltage
variable absorptive attenuator in a low-cost SOIC 8lead surface mount plastic package. The AT-110-2
has a faster switching speed than the AT-108 or
AT-109. The AT-110-2 is ideally suited for use where
linear attenuation fine tuning and very low power
consumption are required.
Typical applications include radio, cellular, GPS
equipment and automatic gain/level control circuits.
The AT-110-2 is fabricated with a monolithic GaAs
MMIC using a mature 1-micron process. The
process features full chip passivation for increased
performance and reliability.
Ordering Information
Part Number
Package
AT-110-2
SOIC 8-Lead Plastic Package
AT-110-2TR
Forward Tape and Reel
Note: Reference Application Note M513 for reel size
information.
1. VCC = +5 VDC ± 0.5 VDC @ 300 µA maximum.
2. VC = 0 VDC to +5 VDC @ 6 mA maximum.
3. External DC blocking capacitors are required on all RF ports.
Pin Configuration
Pin No.
Function
Pin No.
Function
1
Ground
5
VC
2
Ground
6
Ground
3
RF Port
7
RF Port
4
VCC
8
Ground
Absolute Maximum Ratings 4,5
Parameter
Absolute Maximum
Input Power
+21 dBm
Supply Voltage VCC
-1 V < VCC < +8 V
Control Voltage VC
-1 V < VC < VCC + 0.5 V
Operating Temperature
-40°C to +85°C
Storage Temperature
-65°C to +150°C
4. Exceeding any one or combination of these limits may cause
permanent damage to this device.
5. M/A-COM does not recommend sustained operation near
these survivability limits.
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
Voltage Variable Absorptive Attenuator
30 dB, 0.5-2.0 GHz
AT-110-2
V1
Electrical Specifications6: TA = 25°C, Z0 = 50 Ω
Parameter
Test Conditions
Units
Min.
Typ.
Max.
Insertion Loss
0.5 - 1.0 GHz
1.0 - 2.0 GHz
dB
dB
—
—
2.8
3.3
3.0
3.6
Attenuation
1.0 GHz
1.0 - 2.0 GHz
dB
dB
37.5
25
—
—
—
—
Flatness
(Peak to Peak)
0.5 - 1.0 GHz
1.0 - 2.0 GHz
dB
dB
—
—
± 0.5
± 1.2
± 0.8
± 1.5
VSWR
—
Ratio
—
2:1
—
Trise, Tfall
10% to 90% RF, 90% to 10% RF
µS
—
0.2
—
Ton, Toff
50% Control to 90% RF, 50% Control to 10% RF
µS
—
0.2
—
Transients
In-band
mV
—
70
—
6. The RF ports must be blocked outside of the package from ground or any other voltage.
SOIC-8
2
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
Voltage Variable Absorptive Attenuator
30 dB, 0.5-2.0 GHz
AT-110-2
V1
Typical Performance Curves @ 25°C
Attenuation vs. Control Voltage, F = 900, 1800 MHz
Attenuation vs. Temperature, Normalized to +25°C ,
F = 900 MHz
3
0
-40°C
1800
900
+85°C
2
-10
1
0
-20
-1
-30
-2
-3
-40
5
4
3
2
1
5
0
4
3
2
1
0
Control Voltage (V)
Control Voltage (V)
Return Loss vs. Control Voltage, F = 900 MHz
Insertion Loss vs. Frequency
4
0
3
-10
2
-20
1
-30
-40
0
0.5
1.0
1.5
5
2.0
4
3
2
1
0
1
0
Control Voltage (V)
Frequency (GHz)
1 dB Compression vs. Control Voltage, F = 900 MHz
IP3 vs. Control Voltage
40
40
30
30
20
20
10
10
400 MHz
900 MHz
0
0
5
4
3
2
1
0
Control Voltage (V)
3
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
5
4
3
2
Control Voltage (V)
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.