Skyworks Solutions, Inc. [781] 376-3000 •Fax [781] 376-3100 •Email sales@skyworksinc.com •www.skyworksinc.com 1
Specifications subject to change without notice. 8/01A
Chip Attenuator Pads
Features
■Specified Flat Response to 40 GHz
■Return Loss > 16 dB to 40 GHz
■Available at 1–10, 12, 15, 20, 30 and 40 dB
■Power Handling to 1 W CW
■Rugged Thin Film Silicon Chips
ATN3580 Series
Description
The ATN3580 series of attenuator chips incorporate thin
film resistors on high resistivity silicon chips to achieve
precision attenuation, tight flatness and high 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 thick film printed
attenuator. All ATN3580 attenuator chips are specified for
their attenuation at DC. In addition, a wafer probe sample
test is performed to 40 GHz to assure meeting the flatness
♦ Available through distribution.
Nominal Attenuation Attenuation Flatness
Attenuation Tolerance DC–12 GHz DC–26.5 GHz DC–40 GHz Outline Drawing Part Number
(dB) @ DC (dB) (dB) (dB) (dB)
1 ± 0.15 ± 0.20 ± 0.50 ± 1.00 516-060 ♦ATN3580-01
2 ± 0.15 ± 0.20 ± 0.50 ± 1.00 516-060 ♦ATN3580-02
3 ± 0.25 ± 0.20 ± 0.50 ± 1.00 516-060 ♦ATN3580-03
4 ± 0.25 ± 0.20 ± 0.50 ± 1.00 516-060 ATN3580-04
5 ± 0.25 ± 0.20 ± 0.50 ± 1.00 516-060 ♦ATN3580-05
6 ± 0.25 ± 0.40 ± 0.60 ± 1.00 518-060 ATN3580-06
7 ± 0.25 ± 0.40 ± 0.60 ± 1.00 518-060 ATN3580-07
8 ± 0.35 ± 0.40 ± 0.60 ± 1.00 518-060 ATN3580-08
9 ± 0.35 ± 0.40 ± 0.60 ± 1.00 518-060 ATN3580-09
10 ± 0.35 ± 0.40 ± 0.60 ± 1.00 518-060 ♦ATN3580-10
12 ± 0.50 ± 0.40 ± 0.60 ± 1.00 518-060 ATN3580-12
15 ± 0.50 ± 0.40 ± 0.60 ± 1.00 518-060 ATN3580-15
20 ± 1.10 ± 1.00 ± 2.00 ± 4.00 518-060 ATN3580-20
30 ± 1.60 ± 1.00 ± 2.00 ± 4.00 518-060 ATN3580-30
40 ± 1.60 ± 1.00 ± 2.00 ± 4.00 518-060 ATN3580-40
Electrical Specifications at 25°C
Characteristic Value
Incident Power @ 25°C 1 W
Operating Temperature -55°C to +175°C
Storage Temperature -65°C to +200°C
Absolute Maximum Ratings
specification. Skyworks’ measurements indicate that
attenuation typically increases with increasing frequency,
as shown in Figure 1.
Return Loss DC–7 GHz (dB) DC–12 GHz (dB) DC–26.5 GHz (dB) DC–40 GHz (dB)
Min. Min. Min. Min.
ATN3580 Series 22 20 18 16
Chip Attenuator Pads ATN3580 Series
2Skyworks Solutions, Inc. [781] 376-3000 •Fax [781] 376-3100 •Email sales@skyworksinc.com •www.skyworksinc.com
Specifications subject to change without notice. 8/01A
010203040
Frequency (GHz)
Figure 2. ATN3580-10
Return Loss vs. Frequency
Return Loss (dB)
0
10
20
30
40
50
S22 MAG.
S11 MAG.
8.0
8.5
9.0
9.5
10.0
10.5
11.0
11.5
12.0
010203040
Frequency (GHz)
Figure 1. ATN3580-10
Attenuation vs. Frequency
Attenuation (dB)
Typical Performance Data
0.0075 (0.190 mm)
0.0055 (0.140 mm)
SCHEMATIC ATT. PADS
SILICON
IN OUT
COPLANAR
RESISTOR
PADS MUST
BE GROUNDED
0.0045 (0.114 mm)
0.0035 (0.089 mm)
2 PLACES
0.028
(0.71 mm)
0.0055 (0.140 mm)
0.0045 (0.114 mm)
2 PLACES
0.030
(0.76 mm)
INPUT/OUTPUT
SEE NOTE 3
2 PLACES
Outline Drawings
518-060
SCHEMATIC ATT. PADS
OUT
IN
0.0075 (0.191 mm)
0.0055 (0.140 mm)
0.012 (0.30 mm)
0.010 (0.25 mm) TYP.
0.032
(0.81 mm)
0.029
(0.74 mm)
0.020
(0.51 mm)
SEE NOTE 3
2 PLACES
0.026
(0.66 mm)
0.002 (0.05 mm)
MIN. TYP.
0.006 (0.15 mm)
0.004 (0.10 mm)
TYP. SQ.
COPLANAR
RESISTOR,
PADS MUST
BE GROUNDED
0.0075 (0.190 mm)
0.0055 (0.140 mm)
SILICON
INPUT/OUTPUT
516-060
1. Cross hatching = gold contact areas.
2. Dimensions not specified in this drawing vary per attenuation value.
3. Indicates attenuation value.
4. This DIM. can be as highh 0.012 for high attenuation values.
5. Back surface is gold, grounding not required.
1. Cross hatching = gold contact areas.
2. Dimensions not specified in this drawing vary per attenuation value.
3. Indicates attenuation value.
4. Back surface is gold, grounding not required.
