MAAD-009260
Constant Phase Digital Attenuator
32 dB, 2-Bit, TTL Driver, DC - 3.0 GHz
Features
Attenuation: Two 16 dB bits
Minimal Phase Variation over Attenuation Range
Low DC Power Consumption
Hermetic Surface Mount Package
Integral TTL Driver
50 Ohm Nominal Impedance
260°C Reflow Compatible
RoHS* Compliant
Rev. V2
Functional Schematic
Description
MACOM’s MAAD-009260-000100 is a GaAs FET
2-bit digital attenuator with two 16 dB steps and 32
dB total attenuation. The design has been optimized
to minimize phase variation over the attenuation
range. This attenuator and integral TTL driver is in a
hermetically sealed ceramic 16-lead surface mount
package.
The MAAD-009260-000100 is ideally suited for use
where accuracy, fast switching, very low power consumption and low intermodulation products are required.
Pin Configuration 1
Pin No.
Function
Pin No.
Function
1
RF1
9
GND
2
GND
10
+5V
3
GND
11
-5V
4
GND
12
GND
5
GND
13
C2
6
GND
14
C1
7
GND
15
GND
8
RF2
16
GND
Typical applications include dynamic range setting in
precision receiver circuits and other gain/leveling
control circuits. Environmental screening is
available. Contact the factory for information.
Ordering Information
Part Number
Package
MAAD-009260-000100
Bulk Packaging
MAAD-009260-0001TB
Sample Test Board
1.
The metal bottom of the case must be connected to RF
and DC ground.
Note: Reference Application Note M513 for reel size
information.
* 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-009260
Constant Phase Digital Attenuator
32 dB, 2-Bit, TTL Driver, DC - 3.0 GHz
Rev. V2
Electrical Specifications: TA = 25°C, Z0 = 50 , VCC = +5 V, VEE = -5 V
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
Operating Power 2
—
—
dBm
—
—
+20
Reference Insertion Loss
—
DC - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
dB
dB
dB
—
—
—
—
—
—
1.9
2.1
2.7
Attenuation Accuracy
16 dB Bit (C1 Control)
16 dB Bit (C1 Control)
16 dB Bit (C1 Control)
32 dB Attenuation
32 dB Attenuation
32 dB Attenuation
DC - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
DC - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
dB
dB
dB
dB
dB
dB
15.5
15.4
15.4
30.8
30.8
30.8
—
—
—
—
—
—
16.7
16.8
16.8
33.5
34.2
35.0
Phase Accuracy
Relative to Reference Loss State
16 dB Bit (C1 Control)
16 dB Bit (C1 Control)
32 dB Attenuation
DC - 2.0 GHz
2.0 - 3.0 GHz
DC - 3.0 GHz
deg
deg
deg
-3
-4
-7
—
—
—
+3
+4
+7
VSWR
Reference Loss,
16 dB Bit (C1 Control),
or 32 dB Attenuation
DC - 2.0 GHz
2.0 - 3.0 GHz
Ratio
Ratio
—
—
—
—
1.6:1
2.2:1
1.3 V Cntl to 90% RF
1.3 V Cntl to 10% RF
10% RF to 90% RF
90% RF to 10% RF
—
—
__
__
ns
ns
ns
ns
—
—
—
—
42
30
19
16
—
—
—
—
1 dB Compression 3
Reference State
Reference State
0.05 GHz
0.5 - 3.0 GHz
dBm
dBm
—
—
>+26
>+26
—
—
Input IP3
For two-tone Input Power
up to +5 dBm
0.05 GHz
0.5 - 3.0 GHz
dBm
dBm
—
—
+42
+42
—
—
Input IP2
For two-tone Input Power
up to +5 dBm
0.05 GHz
0.5 - 3.0 GHz
dBm
dBm
—
—
+55
+77
—
—
Vcc
Vee
—
—
—
—
V
V
4.5
-8.0
5.0
-5.0
5.5
-4.5
VIL
VIH
LOW-level input voltage
HIGH-level input voltage
—
—
V
V
0.0
2.0
0.0
5.0
0.8
5.0
lin (Input Leakage Current)
Vin = VCC or GND
—
uA
-1
—
1
Icc
(Quiescent Supply Current)
Vcntrl = VCC or GND
—
uA
—
250
400
ΔIcc
(Additional Supply Current Per
TTL Input Pin)
VCC = Max
Vcntrl = VCC - 2.1 V
—
mA
—
—
1.5
Iee
VEE min to max
Vin = VIL or VIH
—
mA
-1.0
-0.2
—
Thermal Resistance θjc
—
—
°C/W
—
50
—
Switching Speed
Ton
Toff
Trise
Tfall
2. Maximum input power is specified with power applied to RF1. Note that C1 is the control for the 16 dB bit.
3. 1 dB Compression was measured up to +26 dBm, which is the absolute maximum rating for this device.
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-009260
Constant Phase Digital Attenuator
32 dB, 2-Bit, TTL Driver, DC - 3.0 GHz
Absolute Maximum Ratings 4,5
Parameter
Max Input Power
DC - 3.0 GHz
Recommended PCB Configuration
Absolute Maximum
6
+26 dBm
VCC
-0.5V ≤ VCC ≤ +7.0V
VEE
-8.5V ≤ VEE ≤ +0.5V
VCC - VEE
-0.5V ≤ VCC - VEE ≤ 14.5V
Vin
Rev. V2
7
-0.5V ≤ Vin ≤ VCC + 0.5V
Operating Temperature
-55°C to +125°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. MACOM does not recommend sustained operation near these
survivability limits.
6. Maximum input power is specified with power applied to RF1.
7. Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
Handling Procedures
Truth Table (Digital Attenuator) 8
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.
C2
C1
Attenuation
0
0
Loss, Reference
0
1
16.0 dB
1
1
32.0 dB
0 = TTL Low; 1 = TTL High
8.
C1 is specified as the control for the 16 dB bit. We show
data for the performance with the C2 control - note that the
power handling is reduced if C2 is used for the 16 dB bit.
The electrical performance of the 16 dB bit controlled by
C2 is not specified.
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-009260
Constant Phase Digital Attenuator
32 dB, 2-Bit, TTL Driver, DC - 3.0 GHz
Rev. V2
Typical Performance Curves
Attenuation - 16 dB Bit (C1) vs. Frequency
Reference Loss vs. Frequency
17.0
25ºC
2.5
85ºC
2.0
1.5
-40ºC
1.0
25ºC
85ºC
16.7
Attenuation (dB)
Reference Loss (dB)
3.0
16.4
16.1
-40ºC
15.8
0.5
15.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.0
0.5
1.0
Frequency (GHz)
17.0
3.0
3.5
4.0
25ºC
35.0
25ºC
85ºC
85ºC
Attenuation (dB)
Attenuation (dB)
2.5
Attenuation - 32 dB Attenuation vs. Frequency
16.4
16.1
-40ºC
15.8
15.5
34.0
33.0
-40ºC
32.0
31.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.0
0.5
1.0
Frequency (GHz)
2.0
2.5
3.0
3.5
4.0
5.0
3.0
Phase (Degrees)
1.0
0.0
-1.0
25ºC
85ºC
-3.0
2.0
Phase - 16 dB Bit (C2) vs. Frequency
Relative to Reference Loss State
-40ºC
-2.0
1.5
Frequency (GHz)
Phase - 16 dB Bit (C1) vs. Frequency
Relative to Reference Loss State
Phase (Degrees)
2.0
Frequency (GHz)
Attenuation - 16 dB Bit (C2) vs. Frequency
16.7
1.5
-40ºC
25ºC
1.0
-1.0
-3.0
85ºC
-5.0
-7.0
-4.0
0.0
0.5
1.0
1.5
2.0
2.5
Frequency (GHz)
3.0
3.5
4.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
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
4.0
MAAD-009260
Constant Phase Digital Attenuator
32 dB, 2-Bit, TTL Driver, DC - 3.0 GHz
Rev. V2
Typical Performance Curves
Phase - 32 dB Attenuation vs. Frequency
Relative to Reference Loss State
VSWR vs. Frequency
Reference Loss State
2.0
20.0
1.8
-40ºC
10.0
VSWR
Phase (Degrees)
15.0
85ºC
5.0
1.6
RF1
1.4
0.0
1.2
-5.0
RF2
25ºC
-10.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
1.0
3.5
0.0
4.0
0.5
1.0
2.0
2.0
1.8
1.8
RF2
RF1
2.0
2.5
3.0
3.5
4.0
3.0
3.5
4.0
VSWR - 16 dB Bit (C2) vs. Frequency
VSWR
VSWR
VSWR - 16 dB Bit (C1) vs. Frequency
1.6
1.5
Frequency (GHz)
Frequency (GHz)
1.4
1.2
1.6
RF1
RF2
1.4
1.2
1.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Frequency (GHz)
1.0
0.0
0.5
1.0
1.5
2.0
2.5
Frequency (GHz)
VSWR - 32 dB Attenuation vs. Frequency
2.0
VSWR
1.8
1.6
RF1
1.4
1.2
RF2
1.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Frequency (GHz)
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.
For further information and support please visit:
https://www.macom.com/support
MAAD-009260
Constant Phase Digital Attenuator
32 dB, 2-Bit, TTL Driver, DC - 3.0 GHz
Rev. V2
Typical Input IP2 and IP3 at Room Temperature
IP2
Attenuation
9
IP3
Units
50 MHz
500
MHz
2 GHz
50 MHz
500
MHz
2 GHz
Reference State
55
77
75
42
42
43
dBm
16 dB (C1)
62
78
87
41
41
44
dBm
16 dB (C2)
57
78
77
41
41
44
dBm
32 dB
65
80
90
43
43
53
dBm
9.
IP2 and IP3 are measured with two-tone inputs F1 and F2 up to +5 dBm with 1 MHz spacing.
Lead-Free, CR-12 Ceramic Package†
†
Reference Application Note M538 for lead-free solder reflow
recommendations.
6
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-009260
Constant Phase Digital Attenuator
32 dB, 2-Bit, TTL Driver, DC - 3.0 GHz
Rev. V2
M/A-COM Technology Solutions Inc. All rights reserved.
Information in this document is provided in connection with M/A-COM Technology Solutions Inc ("MACOM")
products. These materials are provided by MACOM as a service to its customers and may be used for
informational purposes only. Except as provided in MACOM's Terms and Conditions of Sale for such products or
in any separate agreement related to this document, MACOM assumes no liability whatsoever. MACOM
assumes no responsibility for errors or omissions in these materials. MACOM may make changes to
specifications and product descriptions at any time, without notice. MACOM makes no commitment to update
the information and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future
changes to its specifications and product descriptions. No license, express or implied, by estoppels or otherwise,
to any intellectual property rights is granted by this document.
THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR
IMPLIED, RELATING TO SALE AND/OR USE OF MACOM PRODUCTS INCLUDING LIABILITY OR
WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, CONSEQUENTIAL OR
INCIDENTAL DAMAGES, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR
OTHER INTELLECTUAL PROPERTY RIGHT. MACOM FURTHER DOES NOT WARRANT THE ACCURACY
OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN
THESE MATERIALS. MACOM SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS,
WHICH MAY RESULT FROM THE USE OF THESE MATERIALS.
MACOM products are not intended for use in medical, lifesaving or life sustaining applications. MACOM
customers using or selling MACOM products for use in such applications do so at their own risk and agree to
fully indemnify MACOM for any damages resulting from such improper use or sale.
7
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