process. The process features full chip passivation
for performance and reliability.
This device is ideally suited for use where high
accuracy, very low power consumption and low
intermodulation products are required.
1
2
3
Pin Configuration
Pin No.
1
2
Function
RF Input Port
Ground
RF Output Port
V1
V2
Ordering Information
1,2
Part Number
MAAD-010305-TR1000
MAAD-010305-TR3000
MAAD-010305-001SMB
Package
1000 piece reel
3000 piece reel
Sample Board
3
4
5
1. Reference Application Note M513 for reel size information.
2. All sample boards include 5 loose parts.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
1
M/A-COM 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
MAAD-010305
Digital Attenuator, 1-Bit, 15 dB, 75
Ω
DC - 1.1 GHz
Electrical Specifications
3
: T
A
= 25°C, V
C
= +2.5 Volts, Z
0
= 75 Ω
Parameter
Insertion Loss
(Reference State)
Attenuation
Input Return Loss
Output Return Loss
Input IP3
Test Conditions
1.1 GHz
1.1 GHz
DC - 1.1 GHz
DC - 1.1 GHz
1.1 GHz
Insertion Loss State
Attenuation State
1.1 GHz
Insertion Loss State
Attenuation State
157 Channels, P
IN
= 35 dBmV/ch.
157 Channels, P
IN
= 35 dBmV/ch.
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF,
50% Control to 10% RF
In-band
—
Units
dB
dB
dB
dB
dBm
Min.
—
14.6
—
—
—
—
—
—
—
—
—
—
—
—
Typ.
0.3
15.1
14
14
46
46
20
20
70
66
15
20
20
—
Max.
0.45
15.6
—
—
—
—
—
—
—
—
—
—
—
5
Rev. V1
P1dB
CTB
CSO
Trise, Tfall
Ton, Toff
Transients
Control Current
dBm
dBc
dBc
ns
ns
mV
µA
3. For positive voltage control, external DC blocking capacitors are required on all RF ports (pins 1, 2 and 3).
Absolute Maximum Ratings
4,5
Parameter
Input Power
Control Voltage
Operating Temperature
Storage Temperature
Absolute Maximum
+21 dBm
8V
-40°C to +85°C
-65°C to +150°C
Truth Table
Mode
(Control)
Positive
6
Negative
7
V1
0 ± 0.2V
+2.5V to +5V
0 ± 0.2V
-2.5V to -5V
V2
Attenuation
+2.5V to +5V
15 dB
0 ± 0.2V
Reference State
-2.5V to -5V
0 ± 0.2V
Reference State
15 dB
4. Exceeding any one or combination of these limits may cause
permanent damage to this device.
5. M/A-COM Technology Solutions does not recommend
sustained operation near these survivability limits.
6. External DC blocking capacitors are required as noted.
7. If negative control is used, DC blocking capacitors are not
required on RF ports and ground.
2
M/A-COM 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
MAAD-010305
Digital Attenuator, 1-Bit, 15 dB, 75
Ω
DC - 1.1 GHz
Positive Control Voltage Schematic
V1
V2
Rev. V1
Recommended PCB Layout
5
4
1
2
3
C1
C3
C2
IN
OUT
PCB Land Pattern
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.
Plated Vias are .024 diameter
3
M/A-COM 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
MAAD-010305
Digital Attenuator, 1-Bit, 15 dB, 75
Ω
DC - 1.1 GHz
Insertion Loss
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
0.0
0.5
1.0
1.5
2.0
-17
-18
+25°C
-40°C
+85°C
Rev. V1
Typical Performance Curves with C1,C2,C3 = 0.01 µF, positive or negative mode (control)
Relative Attenuation
-12
-13
-14
-15
-16
+25°C
-40°C
+85°C
0.0
0.5
1.0
1.5
2.0
Frequency (GHz)
Frequency (GHz)
Input Return Loss
0
+25°C
-40°C
+85°C
Input Return Loss_Full Attenuation
0
-5
-10
-15
-20
+25°C
-40°C
+85°C
-10
-20
-30
-25
-30
-35
-40
-50
0.0
0.5
1.0
1.5
2.0
-40
0.0
0.5
1.0
1.5
2.0
Frequency (GHz)
Frequency (GHz)
Output Return Loss
0
+25°C
-40°C
+85°C
Output Return Loss_Full Attenuation
0
-5
-10
-15
-20
+25°C
-40°C
+85°C
-10
-20
-30
-25
-30
-35
-40
-50
0.0
0.5
1.0
1.5
2.0
-40
0.0
0.5
1.0
1.5
2.0
Frequency (GHz)
Frequency (GHz)
4
M/A-COM 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
MAAD-010305
Digital Attenuator, 1-Bit, 15 dB, 75
Ω
DC - 1.1 GHz
Lead-Free
SOT-25
†
Rev. V1
† Reference Application Note M538 for lead-free solder reflow recommendations.
Plating is 100% matte tin over copper.
5
M/A-COM 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.
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