ATN3590_V01 [SKYWORKS]
Fixed Attenuators;
| 型号： | ATN3590_V01 |
| 厂家： | 
SKYWORKS SOLUTIONS INC. |
| 描述： | Fixed Attenuators |
| 文件： | 总7页 (文件大小：1194K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DATA SHEET
ATN3590 Series: Fixed Attenuators
Applications
Level adjustment in radios, radars, EW/ECM equipment, and
test instruments
Features
Fixed value, absorptive devices
Available attenuation values range from 0 to 10 dB (in 1 dB
steps), and 12, 15, 20, and 30 dB
Suitable for use to 40 GHz or higher
Excellent return loss: 30 dB, typical
Enhanced power handling: 2 W
Out
Back Side
Back Side
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.
In
Schematic
Figure 1. Typical Attenuator Die and Circuit
Description
The ATN3590 family of fixed resistive attenuators are integrated
circuits comprising thin film resistors and through-die vias that
provide excellent attenuation flatness from low frequency to
40 GHz or higher. These attenuators are available from 0 to 30 dB
(see Table 2).
The ATN3590 attenuator family is optimized for surface mounting
on co-planar waveguide or microstrip printed circuit boards. Bond
wires or ribbons are used to connect the input and output ports of
the attenuators to the external circuit transmission lines.
Connection to ground is accomplished by through-die vias to the
die backside metallization.
The dice are attached using eutectic solder or conductive epoxy
and can operate over a temperature range of –65 C to 150 C.
The absolute maximum ratings for the ATN3590 attenuators are
provided in Table 1, and the electrical specifications are shown in
Table 2. Typical performance characteristics are illustrated in
Figures 2 through 8.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200842E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 6, 2016
1
DATA SHEET • ATN3590 SERIES FIXED ATTENUATORS
Table 1. ATN3590 Series Absolute Maximum Ratings1
Parameter
Symbol
Minimum
Typical
Maximum
Units
W
2
Input power
PIN
2
Power dissipation @ 25 °C
Operating temperature
Storage temperature
PDIS
TOP
TSTG
W
–55
–55
+150
+150
C
C
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.
Table 2. ATN3590Series Electrical Specifications1
(TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted)
Attenuation Attenuation Attenuation Attenuation
Attenuation Flatness
Flatness
(Note 2)
Flatness
(Note 2)
Flatness Min. Return Min. Return Min. Return Min. Return
(Note 2) Loss Loss Loss Loss
Tolerance
@ DC
(Note 2)
Attenuation
DC–12 GHz 12–26 GHz 26–33 GHz 33–40 GHz DC–12 GHz 12–26 GHz 26–33 GHz 33–40 GHz
Part Number
ATN3590-00
(dB)
(dB)
(dB)
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.20
0.20
0.20
0.20
0.20
0.20
(dB)
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.20
0.20
0.20
0.20
0.20
0.25
(dB)
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.25
0.25
0.30
0.50
0.75
0.75
(dB)
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.30
0.50
0.50
0.75
1.00
2.50
(dB)
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
(dB)
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
(dB)
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
(dB)
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
0
1
0.25
0.20
0.20
0.20
0.20
0.20
0.40
0.40
0.40
0.40
0.40
0.40
0.40
1.0
ATN3590-01
ATN3590-02
ATN3590-03
ATN3590-04
ATN3590-05
ATN3590-06
ATN3590-07
ATN3590-08
ATN3590-09
ATN3590-10
ATN3590-12
ATN3590-15
ATN3590-20
ATN3590-30
2
3
4
5
6
7
8
9
10
12
15
20
30
1.0
1
Performance is guaranteed only under the conditions listed in this Table.
Flatness is defined as the maximum deviation from the mean value of attenuation over the specified frequency range.
2
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
May 6, 2016 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200842E
2
DATA SHEET • ATN3590 SERIES FIXED ATTENUATORS
Typical Performance Characteristics
(TOP = +25 C, Characteristic Impedance [Zo] = 50 Ω, Unless Otherwise Noted. Data Gathered Using Ground-to-Signal-to-Ground Probes
on Die)
+2.0
+1.5
+1.0
+0.5
0
–2.0
3 dB
4 dB
5 dB
0 dB
1 dB
2 dB
–2.5
–3.0
–3.5
–4.0
–4.5
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–5.0
–5.5
–6.0
0
5
10
15
20
25
30
35
40
0
5
10
15
20
25
30
35
40
Frequency (GHz)
Frequency (GHz)
Figure 3. Attenuation vs Frequency
(3 dB, 4 dB, and 5 dB Attenuators)
Figure 2. Attenuation vs Frequency
(0 dB, 1 dB, and 2 dB Attenuators)
–8
–5.0
6 dB
7 dB
8 dB
–5.5
–9
–6.0
–10
–6.5
–7.0
–7.5
–11
–12
–13
–14
–8.0
–8.5
9 dB
10 dB
12 dB
–9.0
0
5
10
15
20
25
30
35
40
0
5
10
15
20
25
30
35
40
Frequency (GHz)
Frequency (GHz)
Figure 4. Attenuation vs Frequency
(6 dB, 7 dB, and 8 dB Attenuators)
Figure 5. Attenuation vs Frequency
(9 dB, 10 dB, and 12 dB Attenuators)
–14
–16
–18
–20
–22
–24
–26
–28
–30
–32
15 dB
20 dB
30 dB
0
5
10
15
20
25
30
35
40
Frequency (GHz)
Figure 6. Attenuation vs Frequency
(15 dB, 20 dB, and 30 dB Attenuators)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200842E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 6, 2016
3
DATA SHEET • ATN3590 SERIES FIXED ATTENUATORS
0
–10
–20
0
0 dB
6 dB
15 dB
1 dB
7 dB
20 dB
2 dB
8 dB
30 dB
3 dB
9 dB
4 dB
10 dB
5 dB
12 dB
0 dB
6 dB
15 dB
1 dB
7 dB
20 dB
2 dB
8 dB
30 dB
3 dB
9 dB
4 dB
10 dB
5 dB
12 dB
–10
–20
–30
–40
–50
–30
–40
–50
–60
–70
–80
–60
–70
–80
0
5
10
15
20
25
30
35
40
0
5
10
15
20
25
30
35
40
Frequency (GHz)
Frequency (GHz)
Figure 7. Input Return Loss vs Frequency
Figure 8. Small Signal Gain vs Frequency
Technical Description
The ATN3590 family of fixed attenuators comprises devices with
nominal attenuation values of 0 to 10 dB (in 1 dB steps), and 12,
R3
R1
15, 20, and 30 dB. These attenuators contain through-wafer vias
that connect the topside ground to the backside metallization of
each die.
R4
R2
The devices with nominal attenuation values of 1 dB or greater
are fabricated using thin film resistors deposited on GaAs
substrates. The circuit topology is a simple tee structure that
consists of two series resistors and a shunt resistance, which in
this case is realized as a pair of shunt resistors connected to the
node between the two series resistors (refer to Figures 9 and 10).
The resistances of each of these resistors are selected to
simultaneously produce the nominal attenuation with very good
input and output return losses.
Figure 9. Circuit Topology (1 to 5 dB Attenuators)
R1
R4
R2 || R3
The attenuators with nominal attenuation values ≥6 dB contain a
pair of cascaded tee sections (see Figure 11). The 0 dB
attenuator, ATN3590-00, is a 50 Ω microstrip transmission line
with identical foot print and bond pads to those of the other
products in this family.
Figure 10. Simplified Circuit Topology (1 to 5 dB Attenuators)
R3
R5
Die Attachment and Signal Path Connection
R1
Any of the ATN3590 family of attenuators should be mounted on
the ground plane of a transmission medium. The die should be
attached with conductive epoxy or a eutectic solder such as
gold/tin (AuSn).
R4
R7
R2
R6
For good high frequency performance, it is essential that there is
no ground plane directly beneath the series signal path of the
ATN3590. The backside metallization on the die is split into two
regions along the sides of the die to accommodate this
requirement.
Figure 11. Circuit Topology for Attenuators with Nominal
Attenuation ≥6 dB
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
May 6, 2016 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200842E
4
DATA SHEET • ATN3590 SERIES FIXED ATTENUATORS
The metallization on the circuit medium to which the attenuator is
to be mounted must also include the split in the ground
connections. It is recommended the gap between the ground pads
on the circuit medium be 250 μm wide by 900 μm long.
Package Dimensions
The PCB layout footprint for the ATN3590 attenuators is shown in
Figure 13. Package dimensions are provided in Figure 14.
It is recommended that the signal paths be connected to the
input/output bond pads on the attenuator with 0.25 mil thick x 3
mil wide (6.25 x 75 microns) Au ribbons, as shown in Figure 12.
Au wires can also be used.
Packaging
The standard mode of packaging for shipment of the ATN3590
Attenuator Series is 100 pieces per GelPak™.
Ø
0.10 inch [0.25 mm]
Vias
3 mil Au [0.08 mm]
Ribbon
250 mil long [0.64 mm]
(2 Places)
Ground
Input/Output
Input/Output
Ground
200842-012
Figure 12. Suggested Die Mount and Ribbon Attachment
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200842E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 6, 2016
5
DATA SHEET • ATN3590 SERIES FIXED ATTENUATORS
0.030 [0.76 mm]
0.047 [1.19 mm]
Ø0.10 [0.25 mm]
Vias 6X
4X 0.040 [1.02 mm]
2X 0.062 [1.57 mm]
0.140 [3.56 mm]
0.010 [0.25 mm]
0.070 [1.78 mm]
0.045 [1.13 mm]
0.030 [0.76 mm] Typ
0.062 [1.57 mm]
0.124 [3.15 mm]
Notes:
3. Unless otherwise specified:
Dimensions are in inches
Tolerances on finish: RMS 63
Angles 0.5ꢀ Fractions: 1/64
4 place decimals: 0.0005
3 place decimals: 0.005
2 place decimals: 0.02
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.
1. Material: Alumina 99.6%
Dielectric constant 9.9
Effective dielectric constant 6.8
Transmission line width: 0.010”
Substrate thickness: 0.010”
Coplanar gap: 0.025”
2. Plating: Gold 100 to 150 micro-inches
200842-013
Figure 13. Suggested Land Pattern
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
May 6, 2016 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200842E
6
DATA SHEET • ATN3590 SERIES FIXED ATTENUATORS
0.725 mm
[0.0290]
Additional Ground Contacts
0.110 mm [0.0044] x 0.075 mm [.003]
(4 Places)
Attenuator Value
Ground Via to Backside
(8 Places)
0.700 mm
[0.0280]
Input/Output Pad
0.110 mm [0.0044] x 0.075 mm [.003]
(2 Places)
Attenuator Value
0.100 mm
[0.0040]
0.152 mm
[0.0061]
Low Inductance Ground Contact
(Cu-Ti/Va-Au)
Solder or Conductive Epoxy Attach
Out
Back Side
Back Side
In
200842-014
Schematic
Notes:
1. All measurements in millimeters
2. All dimensions ꢀ.ꢀ2ꢁ mm ꢂꢀ.ꢀꢀ1 inchꢃ
Figure 14. ATN3590 Attenuator Series Die Dimensions
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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200842E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 6, 2016
7
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