Digital Attenuator, 5-Bit, 15.5 dB
400 - 2500 MHz
MAATSS0017
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.
V2
1
RoHS
Compliant
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
Part Number Package
MAATSS0017 Bulk Packaging
MAATSS0017TR 1000 piece reel
MAATSS0017SMB Sample Test Board
Note: 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
MAATSS0017
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.
V2
2
RoHS
Compliant
Electrical Specifications: TA = 25 °C, Z0 = 50 Ω, 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 1
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
1. 0 = 0.0 V ± 0.2 V,
1 = Vs = 5.0 V ± 0.2 V
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 performance. IIP3, however, is a strong function
of voltage. +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 frequency 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
MAATSS0017
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.
V2
3
RoHS
Compliant
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
0 500 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
0 500 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
0 500 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
0 500 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
0 500 1000 1500 2000 2500 3000
+25ºC
-40ºC
+85ºC
Frequency (MHz)
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0.5
0481216
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
MAATSS0017
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.
V2
4
RoHS
Compliant
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
0481216
250 MHz
400 MHz
900 MHz
Attenuation Setting (dB)
0.0
0.2
0.4
0.6
0.8
1.0
0481216
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
0 500 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
MAATSS0017
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.
V2
5
RoHS
Compliant
Lead-Free QSOP-16 (SSOP-16)†
† Reference Application Note M538 for lead-free solder reflow recommendations.
Absolute Maximum Ratings 2,3
Parameter Absolute Maximum
Input Power +34 dBm
Voltage +7 V
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +125°C
2. Exceeding any one or combination of these limits may cause
permanent damage to this device.
3. M/A-COM does not recommend sustained operation near
these survivability limits.
