Digital Attenuator, 10 dB, 1-Bit
DC - 2.0 GHz
Rev. V3
MAATSS0018
1
1
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0006813
1
Features
Single 10 dB Step
Low Loss: 0.3 dB @ 900 MHz
Lead-Free SOT-25 Package
100% Matte Tin Plating over Copper
Halogen-Free “Green” Mold Compound
260°C Reflow Compatible
RoHS* Compliant Version of AT-266
Description
The MAATSS0018 is a 1 bit, 10 dB step GaAs
MMIC digital attenuator in a lead-free SOT-25
surface mount plastic package. This device uses a
mature 1-micron process. The process features full
chip passivation for increased performance and
reliability.
The MAATSS0018 is ideally suited for use where
high accuracy, very low power consumption and low
intermodulation products are required. Typical
applications include radio, wireless LANs, GPS
equipment and other gain / level control circuits.
Ordering Information1,2
Part Number Package
MAATSS0018TR-3000 3000 piece reel
MAATSS0018SMB Sample Board
Pin No.
Function Description
1 RF1 RF In/Out
2 GND RF Ground
3 RF2 RF In/Out
4 V1 Control Voltage
5 V2 Control Voltage
Pin Configuration
Functional Block Diagram
* Restrictions on Hazardous Substances, European Union Directive 2011/65/EU.
1. Reference Application Note M513 for reel size information.
2. All sample boards include 5 loose parts.
Handling Procedures
Please observe the following precautions to avoid
damage:
Static Sensitivity
Gallium Arsenide Integrated Circuits are sensitive to
electrostatic discharge (ESD) and can be damaged
by static electricity. Proper ESD control techniques
should be used when handling these devices.
RF1
GND
RF2
V2
V1
Digital Attenuator, 10 dB, 1-Bit
DC - 2.0 GHz
Rev. V3
MAATSS0018
2
2
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0006813
2
Electrical Specifications: TA = +25°C, VC = 0 V / -3 V, Z0 = 50 Ω
Parameter Test Conditions Units Min. Typ. Max.
Insertion Loss 0 - 1 GHz
1 - 2 GHz dB — 0.3
0.5
0.45
0.7
Attenuation DC - 2 GHz dB 9.5 10 10.5
VSWR 0 - 2 GHz Ratio — 1.4:1 —
IP3 2 Tone @ 0 dBm, 5 MHz spacing dBm — 50 —
P1dB 1 GHz dBm — 28 —
TRISE, TFALL 10% to 90% RF, 90% to 10% RF ns — 5 —
TON, TOFF 50% Control to 90% RF, 50% Control to 10% RF ns — 10 —
Transients In Band mV — 6 —
Control Current │VC│ = 3 V µA — 25 —
Absolute Maximum Ratings3,4
Parameter Absolute Maximum
Input Power
50 MHz
500 - 2000 MHz
+27 dBm
+34 dBm
Control Voltage -8.5 V < VC < +8 V
Operating Temperature -40°C to +85°C
Storing Temperature -65°C to +150°C
3. Exceeding any one or combination of these limits may cause
permanent damage to this device.
4. MACOM does not recommend sustained operation near these
survivability limits.
V1 V2 Attenuation State
0 1 10 dB
1 0 Insertion Loss
Truth Table5,6,7
5. For positive voltage control, external DC blocking capacitors
are required on all RF ports (pins 1, 2 and 3)
6. Differential voltage, V(state 1) - V(state 0), must be +2.8 V
minimum and less than 8 V.
7. 0 = -8 V to 0.2 V, 1 = -0.2 V to 8 V
Digital Attenuator, 10 dB, 1-Bit
DC - 2.0 GHz
Rev. V3
MAATSS0018
3
3
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0006813
3
Insertion Loss (Negative Control)
Relative Attenuation (Positive Control) Relative Attenuation (Negative Control)
Typical Performance Curves (39 pF capacitors used for positive voltage control)
Return Loss (Reference State) Return Loss (10 dB State)
Insertion Loss (Positive Control)
0.0
0.2
0.4
0.6
0.8
1.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
+25°C
-40°C
+85°C
Frequency (GHz)
0.0
0.2
0.4
0.6
0.8
1.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
+25°C
-40°C
+85°C
Frequency (GHz)
9.0
9.5
10.0
10.5
11.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
+25°C
-40°C
+85°C
Frequency (GHz)
9.0
9.5
10.0
10.5
11.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
+25°C
-40°C
+85°C
Frequency (GHz)
0
10
20
30
40
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Positive Control
Negative Control
Frequency (GHz)
0
10
20
30
40
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Positive Control
Negative Control
Frequency (GHz)
Digital Attenuator, 10 dB, 1-Bit
DC - 2.0 GHz
Rev. V3
MAATSS0018
4
4
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0006813
4
Lead-Free SOT-25†
† Reference Application Note M538 for lead-free solder reflow recommendations.
Digital Attenuator, 10 dB, 1-Bit
DC - 2.0 GHz
Rev. V3
MAATSS0018
5
5
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0006813
5
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WHICH MAY RESULT FROM THE USE OF THESE MATERIALS.
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