MAADSS0014
Digital Attenuator, 4-Bit, Single Control
30 dB, 0.05 - 4.0 GHz
Features
•
•
•
•
•
•
•
•
•
•
Integrated Logic
Positive Single Control
Insertion Loss: 1.3 dB @ 1.0 GHz
IP3: 42 dBm typical @ 2.0 GHz
Attenuation Accuracy: 0.2 dB + 2% @ 1.0 GHz
2-dB Attenuation Steps to 30 dB
Low DC Power Consumption
Lead-Free 3mm PQFN-16LD Plastic Package
Halogen-Free “Green” Mold Compound
RoHS* Compliant and 260°C Re-flow Compatible
Rev. V2
Functional Schematic
3,4
Description
The MAADSS0014 is a 4-Bit, 2dB step GaAs MMIC
digital attenuator in a lead-free 3mm PQFN-16LD
surface mount plastic package. The MAADSS0014
is ideally suited for use where high accuracy, very
low power consumption and low intermodulation
products are required. Typical applications include
radio, cellular, wireless LANs, GPS equipment and
other gain / level control circuits.
The MAADSS0014 is part of a digital attenuator
family. This family includes 4, 5, and 6 bit
attenuators with 0.5, 1, or 2 dB steps and up to 31.5
range.
3. Blocking capacitors are required on all RF ports.
4. RF Port and Ground pin capacitors are 1000 pF.
Pin Configuration
5
Pin No.
1
2
3
4
5
6
7
Function
V
DD
RF In/Out
Ext. C to GND
Ext. C to GND
Ext. C to GND
Ext. C to GND
Ext. C to GND
Ext. C to GND
Pin No.
9
10
11
12
13
14
15
16
Function
Ext. C to GND
Ext. C to GND
RF In/Out
N/C or GND
V16 (16dB Bit)
V8 (8dB Bit)
V4 (4dB Bit)
V2 (2dB Bit)
Ordering Information
Part Number
MAADSS0014TR-1000
MAADSS0014TR-3000
MAADSS0014SMB
1,2
8
Package
1000 piece reel
3000 piece reel
Sample Board
5. The exposed pad centered on the package bottom should
be grounded.
Absolute Maximum Ratings
6,7
Parameter
Input Power
0.5 - 4.0 GHz
Control Voltage
Operating Temperature
Storage Temperature
Absolute Maximum
+33 dBm
-0.5 V < V
C
< 5.5 V
-40°C to +85°C
-65°C to +150°C
1. Reference Application Note M513 for reel size information.
2. All sample boards include 5 loose parts.
6. Exceeding any one or combination of these limits may cause
permanent damage to this device.
7. M/A-COM Technology does not recommend sustained
operation near these survivability limits.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
1
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
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.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MAADSS0014
Digital Attenuator, 4-Bit, Single Control
30 dB, 0.05 - 4.0 GHz
Electrical Specifications
8,9
: T
A
= 25°C, Z
0
= 50
Ω,
V
DD
= 5 V, V
C
= 2.8 V
Parameter
Reference Insertion Loss
Attenuation Accuracy
VSWR
Trise, Tfall
Ton, Toff
Transients
Input P1dB
Input IP
2
Test Conditions
1.0 GHz
1.0 GHz
0.05 - 4.0 GHz
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF,
50% Control to 10% RF
In Band
2.0 GHz
2-Tone, +5 dBm/tone, 1 MHz Spacing
0.5 GHz
2.0 GHz
2-Tone, +5 dBm/tone, 1 MHz Spacing
0.5, 2.0 GHz
V
C
= 2.8 V
V
DD
= 5 V
Units
dB
Ratio
ns
ns
mV
dBm
dBm
Min.
—
—
—
—
—
—
—
—
—
—
—
Typ.
1.3
1.5:1
40
65
75
30
75
80
42
15
170
Max.
1.7
—
—
—
—
—
—
—
—
25
250
Rev. V2
± (0.2 dB + 2% of attenuation setting in dB) dB
Input IP
3
I
C
I
DD
dBm
µA
µA
8. External DC blocking capacitors are required on all RF ports.
9. Low frequency is determined by DC block and GND capacitor value
Truth Table
10
VC2
0
1
0
0
0
1
VC4
0
0
1
0
0
1
VC8
0
0
0
1
0
1
VC16
0
0
0
0
1
1
Attenuation (dB)
Reference IL
2
4
8
16
30
Recommended PCB
10. 0 = 0 ± 0.2 V, 1 = +2.8 to 5 V.
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.
Off-Chip Component Values
Component
C1 - C10
Value
1000 Pf
Package
0201
2
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
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.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MAADSS0014
Digital Attenuator, 4-Bit, Single Control
30 dB, 0.05 - 4.0 GHz
Typical Performance Curves
Insertion Loss
0.0
-0.5
-1.0
-1.5
-20
-2.0
-2.5
-3.0
0.5
-25
-30
-35
0.5
2 dB
4 dB
8 dB
16 dB
30 dB
+25°C
-40°C
+85°C
Rev. V2
Relative Attenuation across all major states
0
-5
-10
-15
1.0
1.5
2.0
2.5
3.0
3.5
4.0
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Frequency (GHz)
Frequency (GHz)
Input Return Loss, Insertion Loss State
0
+25°C
-40°C
+85°C
Input Return Loss, across all major attenuation states
0
-10
-20
-30
-10
-20
-40
-30
-50
-60
-40
0.5
-70
0.5
2 dB
4 dB
8 dB
16 dB
30 dB
1.0
1.5
2.0
2.5
3.0
3.5
4.0
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Frequency (GHz)
Frequency (GHz)
Output Return Loss, Insertion Loss State
0
+25°C
-40°C
+85°C
Output Return Loss, across all major attenuation states
0
-10
-20
-30
-10
-20
-40
-30
-50
-60
-40
0.5
-70
0.5
2 dB
4 dB
8 dB
16 dB
30 dB
1.0
1.5
2.0
2.5
3.0
3.5
4.0
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Frequency (GHz)
Frequency (GHz)
3
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
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.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MAADSS0014
Digital Attenuator, 4-Bit, Single Control
30 dB, 0.05 - 4.0 GHz
Typical Performance Curves
Input IP3 @ 0.5 GHz
50
Rev. V2
Input IP3 @ 2 GHz
50
IIP3_Low
IIP3_High
48
IIP3_Low
IIP3_High
48
46
46
44
44
42
42
40
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
40
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
Attenuation
Attenuation
Lead Free
3 mm 16-Lead PQFN
†
† Reference Application Note S2083 for lead-free solder reflow recommendations.
Meets JEDEC moisture sensitivity level 1 requirements.
Plating is 100% matte tin over copper.
4
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
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.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
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