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.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
1
Digital Attenuator, 1-Bit, Single Control
21 dB, 0.8 - 8.0 GHz
Rev. V2
MAADSS0012
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
Commitment to produce in volume is not guaranteed.
Features
21 dB Step Attenuator
Positive Control: 2.5 V typical
Insertion Loss: 0.75 dB typical @ 2.0 GHz
Current Consumption: 40 µA typical
IP3: >42 dBm typical @ 2.0 GHz
Lead-Free 2mm 8-Lead PDFN Package
Halogen-Free “Green” Mold Compound
RoHS* Compliant and 260°C Re-flow Compatible
Description
M/A-COM’s MAADSS0012 is a 1-bit, 21 dB step
attenuator. This GaAs MMIC digital attenuator is
packaged in an ultra small lead free 2 mm 8-Lead
PDFN surface mount package.
The MAADSS0012 digital attenuator will work with
any power source operating between 2.8 and 5.0
volts. This single bit attenuator is ideally suited for
use in wide band systems, up to 8.0 GHz where
good linearity and low insertion loss are required.
Typical applications for the MAADSS0012 attenuator
include WiMAX (802.16), Mesh Networks, Multi-
band repeaters and other linear systems.
Functional Schematic 3
3. Blocking capacitors are required on all RF ports.
Pin Configuration
Pin No. Function Pin No. Function
1 VC 5 Ground
2 Ground 6 RF In/Out
3 RF In/Out 7 Ground
4 Ground 8 VDD
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
Absolute Maximum Ratings 4,5
Parameter Absolute Maximum
Input Power
0.8 - 8.0 GHz
VDD = 2.8 - 5.0 V
+33 dBm
Control Voltage -0.5 V < VC < 5.0 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.
Ordering Information 1,2
Part Number Package
MAADSS0012TR-3000 3000 piece reel
MAADSS0012SMB Sample Test Board
1. Reference Application Note M513 for reel size information.
2. All sample boards include 5 loose parts.
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.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
2
Digital Attenuator, 1-Bit, Single Control
21 dB, 0.8 - 8.0 GHz
Rev. V2
MAADSS0012
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
Commitment to produce in volume is not guaranteed.
Electrical Specifications 6: TA = 25°C, Z0 = 50 , VC = 2.5 V, VDD = 2.8 V
Parameter Test Conditions Units Min. Typ. Max.
Reference Insertion Loss 2.0 GHz dB 0.75 1.0
Attenuation 2.0 GHz dB 20 21 22
Return Loss 2.0 - 8.0 GHz dB 20
Trise, Tfall 10% to 90% RF, 90% to 10% RF ns 50
Ton, Toff 50% Control to 90% RF,
50% Control to 10% RF ns 200
Transients In Band mV 20
1 dB Compression Input Power, 0.8 - 8.0 GHz dBm 25
IP2
2.0 - 8.0 GHz
Measured Relative to Input
(for two-tone Input Power up to +5 dBm)
dBm 70
IP3
2.0 - 8.0 GHz
Measured Relative to Input
(for two-tone Input Power up to +5 dBm)
dBm 42
IDD VDD = 2.8 V µA 40 60
IC VC = 2.5 V µA 15 20
6. External DC blocking capacitors are required on all RF ports. Loss varies at 0.003 dB/°C.
Truth Table 7
VC Attenuation (dB)
0 Reference IL
1 21
7. 0 = 0 ± 0.2 V, 1 = +2.5 to 5 V, minimum 2.5 V delta.
Recommended Configuration Parts List
Part Value Case Style Manufacturer
C1, C4 15 pF 0402 Murata
C2, C3 47 pF 0201 Murata
R1, R2 10K 0201 Panasonic
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.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
3
Digital Attenuator, 1-Bit, Single Control
21 dB, 0.8 - 8.0 GHz
Rev. V2
MAADSS0012
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
Commitment to produce in volume is not guaranteed.
Input Return Loss, Insertion Loss State
Typical Performance Curves
Output Return Loss, Insertion Loss State
Relative Attenuation
Insertion Loss
Input Return Loss, Attenuation State
Output Return Loss, Attenuation State
-2.0
-1.5
-1.0
-0.5
0.0
2345678
+25°C
-40°C
+85°C
Frequency (GHz)
-22.0
-21.5
-21.0
-20.5
-20.0
2345678
+25°C
-40°C
+85°C
Frequency (GHz)
-30
-25
-20
-15
-10
2345678
+25°C
-40°C
+85°C
Frequency (GHz)
-30
-25
-20
-15
-10
2345678
+25°C
-40°C
+85°C
Frequency (GHz)
-30
-25
-20
-15
-10
2345678
+25°C
-40°C
+85°C
Frequency (GHz)
-30
-25
-20
-15
-10
2345678
+25°C
-40°C
+85°C
Frequency (GHz)
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.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
4
Digital Attenuator, 1-Bit, Single Control
21 dB, 0.8 - 8.0 GHz
Rev. V2
MAADSS0012
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
Commitment to produce in volume is not guaranteed.
Lead-Free 2 mm 8-Lead PDFN
Reference Application Note S2083 for lead-free solder reflow recommendations.
Meets JEDEC moisture sensitivity level 1 requirements.
Plating is 100% matte tin over copper.
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.
Typical Performance Curves
IP2
IP3
40
41
42
43
44
45
46
2.0 2.5 3.0 3.5 4.0 4.5 5.0
Insertion Loss State
Attenuation State
Frequency (GHz)
65
70
75
80
85
90
2.0 2.5 3.0 3.5 4.0 4.5 5.0
Insertion Loss State
Attenuation State
Frequency (GHz)
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.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
5
Digital Attenuator, 1-Bit, Single Control
21 dB, 0.8 - 8.0 GHz
Rev. V2
MAADSS0012
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
Commitment to produce in volume is not guaranteed.
Relative Attenuation
Applications Section—Low Frequency Measurement
This data shows the MAADSS0012 with the board and connector loss removed.
M/A-COM recommends using DC-Blocking capacitors large enough that their Xc is insignificant at the frequency
of use. At 800 MHz a capacitor value greater than 1000 pF is recommended.
Insertion Loss
Input Return Loss—Attenuation State
Input Return Loss—Insertion Lo ss State
Output Return Loss—Attenuation State
Output Return Loss—Insertion Loss State
-2.0
-1.5
-1.0
-0.5
0.0
0.0 0.5 1.0 1.5 2.0
+25°C
-40°C
+85°C
Frequency (GHz)
-22.0
-18.5
-15.0
-11.5
-8.0
0.0 0.5 1.0 1.5 2.0
+25°C
-40°C
+85°C
Frequency (GHz)
-30
-25
-20
-15
-10
0.0 0.5 1.0 1.5 2.0
+25°C
-40°C
+85°C
Frequency (GHz)
-30
-25
-20
-15
-10
-5
0
0.0 0.5 1.0 1.5 2.0
+25°C
-40°C
+85°C
Frequency (GHz)
-30
-25
-20
-15
-10
0.0 0.5 1.0 1.5 2.0
+25°C
-40°C
+85°C
Frequency (GHz)
-30
-25
-20
-15
-10
-5
0
0.0 0.5 1.0 1.5 2.0
+25°C
-40°C
+85°C
Frequency (GHz)