RoHS
Compliant
Attenuator, Digital, 5-Bit
0.1-20.0 GHz
Features
♦
♦
♦
♦
♦
MAATGM0004
Rev —
Preliminary Information
5-Bit Attenuator, 22 dB Range, LSB = 0.75 dB
0.1 to 20.0 GHz Operation
4 mm, 24-Lead PQFN
TTL Control Inputs
MSAG™ Process
Description
The
MAATGM0004
is a 5-bit bi-directional Digital Attenuator
with Parallel Input Control. This product is fully matched to 50
ohms on both the input and output.
Each device is 100% RF tested to ensure performance com-
pliance. The part is fabricated using M/A-COM’s GaAs Multi-
function Self-Aligned Gate (MSAG) Process.
The 4 mm PQFN package has a lead-free lead finish that is
RoHS compliant and compatible with a 260ºC reflow tempera-
ture. The package also features low lead inductance and an
excellent thermal path. The MTTF is 1,000,000 hours at
170ºC.
Primary Applications
♦
♦
♦
♦
♦
Also Available in:
Description
Part Number
Die
MAATGM0004-DIE
Plastic Package Sample Board
MAAT-000004-SMB003
VSAT
Point-to-Point Communications
Weather Radar
Military Radar
Electronic Warfare
Electrical Characteristics: T
B
= 25°C, Z
0
= 50Ω, V
EE
= -5V
Parameter
Bandwidth
Attenuation Range
Digital Supply Current
Reference State Insertion Loss (<10 GHz)
Reference State Insertion Loss (10 - 20 GHz)
VSWR (All States - <10 GHz)
VSWR (All States - 10 - 20 GHz)
Attenuation Error (<10 GHz)
Attenuation Error (10 - 20 GHz)
Phase Variation (All States - <10 GHz)
Phase Variation (All States - 10 - 20 GHz)
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.
Symbol
f
∆G
IEE
IL
IL
VSWR
VSWR
Err
Err
∆Ф
∆Ф
Typical
0.1-20
22
<10
<4
<6
1.5:1
3:1
-1.5 to +0.1
-0.5 to +2.0
<±5
<±20
Units
GHz
dB
mA
dB
dB
dB
dB
°
°
•
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.
RoHS
Compliant
Attenuator, Digital, 5-Bit
0.1-20.0 GHz
Maximum Ratings
1
Parameter
Input Power
Source Supply Voltage
Junction Temperature
Storage Temperature
Symbol
P
IN
V
EE
T
J
T
STG
Absolute Maximum
36
-6
170
-55 to +150
Units
dBm
V
°C
°C
MAATGM0004
Rev —
Preliminary Information
1. Operation beyond these limits may result in permanent damage to the part.
Recommended Operating Conditions
2
Characteristic
Control Voltage
Logic High
Logic Low
Junction Temperature
Digital Supply Voltage
T
J
V
EE
-5.2
-5
Symbol
A1 thru A6
3
0
5
0
5
0.4
150
-4.8
V
V
°C
V
Min
Typ
Max
Unit
2. Operation outside of these ranges may reduce product reliability.
Truth Table
3
Pin
19
20
21
22
23
24
Description
12.0 dB Attenuation Bit
6.0 dB Attenuation Bit
VEE: DC Suply Voltage
3.0 dB Attenuation Bit
1.5 dB Attenuation Bit
0.75 dB Attenuation Bit : LSB
Level
Logic High
Logic High
-5V
Logic High
Logic High
Logic High
State
Attenuation
≈
12.0 dB
Attenuation
≈
6.0 dB
ON
Attenuation
≈
3.0 dB
Attenuation
≈
1.5 dB
Attenuation
≈
0.75 dB
3. All Attenuation Bits at Logic Low = Reference State.
Operating Instructions
This device is static and light sensitive. Operation of the digital circuitry can be
impaired under high intensity light, e.g., microscope light.
No voltage sequencing is required to operate this part.
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
2
Visit www.macom.com for additional data sheets and product information.
RoHS
Compliant
Attenuator, Digital, 5-Bit
0.1-20.0 GHz
10
9
8
7
Insertion Loss (dB)
6
5
4
3
2
1
0
0.1 0.2
0.3 0.4
0.5 0.6
0.7 0.8 0.9
1.0 1.1
1.2 1.3
1.4 1.5 1.6 1.7 1.8
1.9 2.0
Frequency (GHz)
Insertion Loss (dB)
10
MAATGM0004
Rev —
Preliminary Information
-50ºC
50ºC
150ºC
9
8
7
6
5
4
3
2
1
0
2
-50ºC
50ºC
150ºC
4
6
8
10
12
14
16
18
20
Frequency (GHz)
Figure 1. Insertion Loss vs. Frequency & Case Temperature - Reference State
Figure 2. Insertion Loss vs. Frequency & Case Temperature - Reference State
28
26
24
22
20
Insertion Loss (dB)
18
16
14
12
10
8
6
4
2
0
0.1 0.2
0.3 0.4
0.5 0.6
0.7 0.8 0.9
1.0 1.1
1.2 1.3
1.4 1.5 1.6 1.7 1.8
1.9 2.0
Frequency (GHz)
Insertion Loss (dB)
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
2
4
6
8
10
12
14
16
18
20
Frequency (GHz)
Figure 3. Relative Insertion Loss vs. Frequency & Attenuation State - All States
Figure 4. Relative Insertion Loss vs. Frequency & Attenuation State - All States
30
25
20
Relative Insertion Phase (º)
Relative Insertion Phase (º)
0.1
0.2 0.3 0.4
0.5 0.6 0.7 0.8 0.9
1.0 1.1 1.2 1.3 1.4
1.5 1.6 1.7
1.8 1.9
2.0
15
10
5
0
-5
-10
-15
-20
-25
-30
Frequency (GHz)
30
25
20
15
10
5
0
-5
-10
-15
-20
-25
-30
2
4
6
8
10
12
14
16
18
20
Frequency (GHz)
Figure 5. Relative Insertion Phase vs. Frequency & Attenuation State - All States
Figure 6. Relative Insertion Phase vs. Frequency & Attenuation State - All States
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.
•
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.
RoHS
Compliant
Attenuator, Digital, 5-Bit
0.1-20.0 GHz
6
6
MAATGM0004
Rev —
Preliminary Information
5
5
4
VSWR
3
VSWR
4
3
2
2
1
0.1 0.2 0.3
0.4
0.5 0.6
0.7
0.8 0.9
1.0
1.1
1.2 1.3
1.4
1.5 1.6
1.7
1.8
1.9 2.0
Frequency (GHz)
1
2
4
6
8
10
12
14
16
18
20
Frequency (GHz)
Figure 7. VSWR (RF Port 1) vs. Frequency & Attenuation State - All States
Figure 8. VSWR (RF Port 1) vs. Frequency & Attenuation State - All States
6
6
5
5
4
VSWR
4
VSWR
3
3
2
2
1
0.1
0.2 0.3
0.4
0.5
0.6 0.7
0.8
0.9
1.0 1.1
1.2
1.3 1.4 1.5
1.6
1.7 1.8 1.9
2.0
Frequency (GHz)
1
2
4
6
8
10
12
14
16
18
20
Frequency (GHz)
Figure 10. VSWR (RF Port 2) vs. Frequency & Attenuation State - All States
Figure 9. VSWR (RF Port 2) vs. Frequency & Attenuation State - All States
5.0
4.0
3.0
Attenuation Error (dB)
2.0
1.0
0.0
-1.0
-2.0
-3.0
-4.0
-5.0
0.0
1.5
3.0
4.5
6.0
7.5
9.0
10.5 12.0 13.5 15.0 16.5 18.0 19.5 21.0 22.5 24.0
Commanded Attenuation State (dB)
IDEAL
2 GHz
10 GHz
18 GHz
Figure 11. Typical Attenuation Error vs. Commanded Attenuation State & Frequency
4
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.
RoHS
Compliant
Attenuator, Digital, 5-Bit
0.1-20.0 GHz
MAATGM0004
Rev —
Preliminary Information
Figure 12. 4mm PQFN 24 Lead Package Drawing
Reference JEDEC M0-220 (see http://www.jedec.org), VAR. VJJC-3 (Issue E) for additional dimensional and tolerance information.
VEE
0.01 to 0.1μF
100pF – as close
to the part as
possible.
Control
Inputs
5
Figure 13. Recommended Bias Configuration
Note: The exposed pad centered on the package bottom must be connected to RF
and dc ground for proper electrical and thermal operation.
Refer to M/A-COM Application Note
Surface Mounting Instructions for PQFN Packages #S2083*
for assembly guidelines.
*Application Notes can be found by going to M/A-COM’s web page (http://www.macom.com/Application%20Notes/index.htm) and selecting
the required Application Note.
5
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.
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