DATA SHEET
ATN3580 Series: Fixed Attenuator Pads
Applications
Attenuators
Features
Specified flat response to 40 GHz
Return loss > 15 dB
Available at 1-10, 12, 15, 20, 30, and 40 dB
Power handling to 1 W CW
Rugged thin-film silicon chips
Lead (Pb)-free, RoHS-compliant, and Green™
Description
The ATN3580 series of attenuator chips incorporates thin-film
resistors on high-resistivity silicon to achieve precision
attenuation, tight flatness and excellent return loss to 40 GHz. The
design uses a balanced TEE resistive structure to assure broad
bandwidth performance. The thin-film technology offers improved
power-handling capability in comparison to the traditional thickfilm printed attenuator. All ATN3580 attenuator chips are
specified for their attenuation at DC.
The absolute maximum ratings are shown in Table 1. Electrical
specifications and minimum return loss are provided in Tables 2
and 3, respectively. Typical performance characteristics are
shown in Figures 1 and 2. Drawings for suggested die mount and
ribbon attachment, product outlines, and a suggested land pattern
are shown in Figures 3 through 7.
Skyworks GreenTM products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of GreenTM, document number
SQ04-0074.
Table 1. Absolute Maximum Ratings1
Characteristic
Value
Incident power @ 25 °C
1W
Operating temperature
-55 °C to +150 °C
Storage temperature
-65 °C to +150 °C
Electrostatic discharge:
Charged-Device Model (CDM), Class 4
Human Body Model (HBM), Class 2
Machine Model (MM), Class B
1000 V
2000 V
200 V
1 Exposure to maximum rating conditions for extended periods may reduce device
reliability. There is no damage to device with only one parameter set at the limit and all
other parameters set at or below their nominal value. Exceeding any of the limits listed
here may result in permanent damage to the device.
ESD HANDLING: Although this device is designed to be as robust as possible, electrostatic discharge (ESD) can damage this device.
This device must be protected at all times from ESD when handling or transporting. Static charges may easily produce
potentials of several kilovolts on the human body or equipment, which can discharge without detection.
Industry-standard ESD handling precautions should be used at all times.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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DATA SHEET • ATN3580 SERIES: FIXED ATTENUATOR PADS
Table 2. Electrical Specifications at 25 C1
Attenuator Flatness
Nominal Attenuation
(dB)
DC Tolerance
(dB)
0.1 to 12 GHz
(dB)
0.1 to 26.5 GHz
(dB)
0.1 to 40 GHz
(dB)
Outline Drawing
Part Number
1
±0.15
±0.1
±0.25
±0.50
516-060
ATN3580-01
2
±0.15
±0.1
±0.25
±0.50
516-060
ATN3580-02
3
±0.25
±0.1
±0.25
±0.50
516-060
ATN3580-03
4
±0.25
±0.1
±0.25
±0.50
516-060
ATN3580-04
5
±0.25
±0.1
±0.25
±0.50
516-060
ATN3580-05
6
±0.25
±0.2
±0.30
±0.50
518-060
ATN3580-06
7
±0.25
±0.2
±0.30
±0.50
518-060
ATN3580-07
8
±0.35
±0.2
±0.30
±0.50
518-060
ATN3580-08
9
±0.35
±0.2
±0.30
±0.50
518-060
ATN3580-09
10
±0.35
±0.2
±0.30
±0.50
518-060
ATN3580-10
12
±0.50
±0.2
±0.30
±0.50
518-060
ATN3580-12
15
±0.50
±0.2
±0.30
±0.50
518-060
ATN3580-15
20
±1.10
±0.5
±1.0
±2.0
518-060
ATN3580-20
30
±1.60
±0.5
±1.0
±2.0
518-060
ATN3580-30
40
±1.60
±0.5
±1.0
±2.0
518-060
ATN3580-40
1 Performance is guaranteed only under the conditions listed in this table.
Table 3. Minimum Return Loss S111
0.1 to 7 GHz
(dB)
0.1 to 12 GHz
(dB)
0.1 to 26.5 GHz
(dB)
0.1 to 40 GHz
(dB)
22
20
18
15
ATN3580 Series
1 Performance is guaranteed only under the conditions listed in this table.
Typical Performance Characteristics
11
30
Return Loss (dB)
Attenuation (dB)
Flatness
10
9
0
10
20
30
Frequency (GHz)
Figure 1. ATN3580-20
Typical Insertion Loss vs Frequency
40
20
10
0
0
10
20
30
Frequency (GHz)
Figure 2. ATN3580-20
Typical Return Loss vs Frequency
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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40
DATA SHEET • ATN3580 SERIES: FIXED ATTENUATOR PADS
Suggested Die Mount and Ribbon Attachment Drawings, Outline Drawings, and a Suggested Land
Pattern
1 mil [0.02 mm] Gold Wire
Ø0.010 inch [0.25 mm]
Vias
1 mil [0.02 mm] Gold Wire
3 mil Au [0.08 mm]
Ribbon
250 mil long [0.64 mm]
2 Places
Ø0.010 inch [0.25 mm]
Vias
3 mil Au [0.08 mm]
Ribbon
250 mil long [0.64 mm]
2 Places
Ground
Ground
Input/Output
Input/Output
Ground
Input/Output
Input/Output
Ground
200141-003
Figure 3. Suggested Die Mount and Ribbon Attachment
(1 to 5 dB)
Coplanar Resistor
Pads Must
Be Grounded
0.001
(0.025 mm)
See Note 3
2 Places
0.003 (0.076 mm)
0.002 (0.051 mm)
See Note 4
0.0045 (0.114 mm)
0.0035 (0.089 mm)
2 Places
0.027
(0.686 mm)
Figure 4. Suggested Die Mount and Ribbon Attachment
(≥ 6 dB)
Out
Schematic
Att. Pads
In
0.005
(0.127 mm)
200141-004
0.029 ± 0.002
(0.737 mm)
0.009
0.022
(0.559 mm)
0.0055 (0.140 mm)
0.0045 (0.114 mm)
2 Places
0.027 ± 0.002
(0.686 mm)
0.0075 (0.190 mm)
0.0055 (0.140 mm)
1. Cross hatching = gold contact areas.
2. Dimensions not specified in this drawing vary per attenuation value.
3. Indicates attenuation value.
4. This dimension can be as high as 0.012 for high attenuation values.
Figure 5. 518-060 Outline Drawing
Figure 6. 516-060 Outline Drawing
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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DATA SHEET • ATN3580 SERIES: FIXED ATTENUATOR PADS
0.030 [0.76 mm]
0.047 [1.19 mm]
Ø0.010 [0.25 mm] Vias
6X
4X 0.040 [1.02 mm]
0.140 [3.56 mm]
0.070 [1.78 mm]
0.010 [0.25 mm]
0.045 [1.13 mm]
0.030 [0.76 mm] Typ
0.062 [1.57 mm]
0.124 [3.15 mm]
Notes:
1. Material: Alumina 99.6%
Dielectric Constant: 9.9
Efffective Dielectric Constant: 6.8
Transmission Line Width: 0.010 inch
Substrate Thickness: 0.010 inch
Coplanar Gap: 0.025 inch
3. Unless otherwise specified:
Dimensions are in inches
Tolerances on finish: RMS 63
Angles ± 0.5° Fractions: ± 1/64
4 place decimals: ± 0.0005
3 place decimals: ± 0.005
2 place decimals: ± 0.02
2. Plating: Gold 100 to 150 micro-inches
4. Commercial published tolerances shall apply to tubing,
bar, plate, etc. All threads to be Class 2A or Class 2B. Plated
parts must fit gauges and meet specified tolerances
after plating.
Figure 7. Suggested Land Pattern
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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200141-007
DATA SHEET • ATN3580 SERIES: FIXED ATTENUATOR PADS
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