Digital Attenuator, 5-Bit, 15.5 dB
400 - 2500 MHz
Rev. V2
MAATSS0017
1
1
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For further information and support please visit:
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1
Features
5 Bits, 0.5 dB Steps
Excellent Accuracy
Single Positive Control (+3 V to +5 V)
Lead-Free QSOP-16 (SSOP-16) Package
100% Matte Tin Plating over Copper
Halogen-Free “Green” Mold Compound
260°C Reflow Compatible
RoHS* Compliant Version of MAATSS0001
Description
M/A-COM’s MAATSS0017 is a 0.5 dB step GaAs
MMIC digital attenuator with 15.5 dB attenuation
range in a lead-free QSOP-16 (SSOP-16) package.
It requires external DC blocking capacitors on the
RF ports, positive supply voltage and five individual
bit control voltages.
The MAATSS0017 is particularly suited where high
attenuation accuracy, low insertion loss and low
intermodulation products are required. Typical
applications include base stations, wireless data,
and wireless local loop gain level control circuits.
The MAATSS0017 is fabricated using M/A-COM’s
GaAs 1.0 micron process. The process features full
chip passivation for increased performance and
reliability.
Functional Schematic
Ordering Information 1
Part Number Package
MAATSS0017 Bulk Packaging
MAATSS0017TR 1000 piece reel
MAATSS0017SMB Sample Test Board
1. Reference Application Note M513 for reel size information.
Pin Configuration
Pin No. Function Pin No. Function
1 GND 9 RF2
2 GND 10 GND
3 VC1 11 GND
4 VC2 12 GND
5 VC3 13 GND
6 VC4 14 GND
7 VC5 15 GND
8 GND 16 RF1
Recommended Configuration
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
Digital Attenuator, 5-Bit, 15.5 dB
400 - 2500 MHz
Rev. V2
MAATSS0017
2
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
2
Electrical Specifications: TA = 25 °C, Z0 = 50 , Vs = +5 V, Vc = 0 V / 5 V
Parameter Conditions Frequency Units Min. Typ. Max.
Insertion Loss (reference state) —
0.5 - 1.8 GHz
1.8 - 2.2 GHz
2.2 - 2.5 GHz
dB
dB
dB
—
—
—
1.9
2.2
2.5
2.2
2.5
2.8
VSWR Any State 0.5 - 2.5 GHz Ratio — 1.6:1 —
Accuracy Any State
0.5 - 0.8 GHz
0.8 - 1.8 GHz
1.8 - 2.2 GHz
2.2 - 2.5 GHz
± (0.3 + 4% atten setting)
± (0.3 + 3% atten setting)
± (0.3 + 6% atten setting)
± (0.3 + 8% atten setting)
Attenuation Range — 0.5 - 2.5 GHz dB 14.3 15.5 —
1 dB Compression Input Power +3 V
+5 V
0.5 - 2.5 GHz
0.5 - 2.5 GHz
dBm
dBm
—
—
25
30
—
—
IP3
Two tones, Pin < +5 dBm/tone
+3 V
+5 V
0.5 - 2.5 GHz
0.5 - 2.5 GHz
dBm
dBm
—
—
36
46
—
—
Trise, Tfall 10/90% or 90/10% RF — µS — 2 —
Ton, Toff 50% CNTL to 90/10% RF — µS — 2 —
Transients In Band — mV — 62 —
Control Current +3 V
+5 V
—
—
µA
µA
—
—
—
—
40
40
Truth Table 2
Control Inputs
VC5 VC4 VC3 VC2 VC1 Attenuation
(dB)
1 1 1 1 1 Reference
0 1 1 1 1 0.5 dB
1 0 1 1 1 1 dB
1 1 0 1 1 2 dB
1 1 1 0 1 4 dB
1 1 1 1 0 8 dB
2. 0 = 0.0 V ± 0.2 V,
1 = Vs = 5.0 V ± 0.2 V
Digital Attenuator, 5-Bit, 15.5 dB
400 - 2500 MHz
Rev. V2
MAATSS0017
3
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
3
Typical Performance Curves
Attenuation at Major Bits
Insertion Loss
Input Return Loss Output Return Loss
Attenuation Accuracy Attenuation Accuracy vs. Setting
0
5
10
15
20
0500 1000 1500 2000 2500 3000
0.5 dB
1 dB
2 dB
4 dB
8 dB
15.5 dB
Frequency (MHz)
-50
-40
-30
-20
-10
0
0500 1000 1500 2000 2500 3000
0.5 dB
1 dB
2 dB
4 dB
8 dB
15.5 dB
Frequency (MHz)
-50
-40
-30
-20
-10
0
0500 1000 1500 2000 2500 3000
0.5 dB
1 dB
2 dB
4 dB
8 dB
15.5 dB
Frequency (MHz)
-10
-8
-6
-4
-2
0
2
0500 1000 1500 2000 2500 3000
0.5 dB
1 dB
2 dB
4 dB
8 dB
15.5 dB
Frequency (MHz)
0
1
2
3
4
5
0500 1000 1500 2000 2500 3000
+25ºC
-40ºC
+85ºC
Frequency (MHz)
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0.5
0 4 8 12 16
250 MHz
400 MHz
900 MHz
1900 MHz
2200 MHz
2500 MHz
Attenuation Setting (dB)
Digital Attenuator, 5-Bit, 15.5 dB
400 - 2500 MHz
Rev. V2
MAATSS0017
4
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
Typical Performance Curves
Step size (high frequency)
Step size (low frequency)
IIP3, +3 V, at 0 dB Attenuation Setting
IIP3, +5 V, vs. Attenuation Setting Sample Board Loss
0.0
0.2
0.4
0.6
0.8
1.0
0 4 8 12 16
250 MHz
400 MHz
900 MHz
Attenuation Setting (dB)
0.0
0.2
0.4
0.6
0.8
1.0
0 4 8 12 16
1900 MHz
2200 MHz
2500 MHz
Attenuation Setting (dB)
30
35
40
45
50
55
500 1000 1500 2000 2500
+25ºC
-40ºC
+85ºC
Frequency (MHz)
IIP3, +5 V, at 0 dB Attenuation Setting
30
35
40
45
50
55
500 1000 1500 2000 2500
0 dB
0.5 dB
1 dB
2 dB
4 dB
8 dB
15.5 dB
Frequency (MHz)
0.0
0.1
0.2
0.3
0.4
0.5
0500 1000 1500 2000 2500
+25ºC
-40ºC
+85ºC
Frequency (MHz)
30
35
40
45
50
55
500 1000 1500 2000 2500
+25ºC
-40ºC
+85ºC
Frequency (MHz)
Digital Attenuator, 5-Bit, 15.5 dB
400 - 2500 MHz
Rev. V2
MAATSS0017
5
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
5
Lead-Free QSOP-16 (SSOP-16)†
† Reference Application Note M538 for lead-free solder reflow recommendations.
Absolute Maximum Ratings 3,4
Parameter Absolute Maximum
Input Power +34 dBm
Voltage +7 V
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +125°C
3. Exceeding any one or combination of these limits may cause
permanent damage to this device.
4. M/A-COM does not recommend sustained operation near
these survivability limits.
The MAATSS0017 is designed to operate with 5 V
logic levels. The difference between +3 V and +5
V operation is minimal for small signal perform-
ance. IIP3, however, is a strong function of volt-
age. +3 V is the minimum voltage at which the
product will reliably operate.
The MAATSS0017 requires a parallel interface that
allows the user to enter a 5 bit digital word. Each
state increments the attenuation by 0.5 dB giving a
total range of 15.5 dB.
The MAATSS0017 is not internally DC blocked.
This means that the device requires DC blocking
capacitors on the RF1 and RF2 ports. M/A-COM
recommends 0.1 uF to allow for the entire fre-
quency range to be utilized. Higher frequency
applications can use smaller value capacitors as
DC blocks.
For application information concerning this and
other M/A-COM products, please visit our website
at www.macom.com, where information including
soldering profiles, reliability procedures, and S-
parameter data can be found.
Operating Instructions
Digital Attenuator, 5-Bit, 15.5 dB
400 - 2500 MHz
Rev. V2
MAATSS0017
6
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
6
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.
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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
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WHICH MAY RESULT FROM THE USE OF THESE MATERIALS.
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customers using or selling MACOM products for use in such applications do so at their own risk and agree to
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