Data Sheet

DATA SHEET
SKY67110-396LF: 0.30-0.75 GHz High Linearity, Active Bias
Low-Noise Amplifier
Applications
• CDMA, WCDMA, ISM, TETRA, RFID, LMR, and LTE cellular
infrastructures
• Ultra low-noise systems
Features
• Ultra Low Noise Figure: 0.65 dB @ 0.45 GHz
• High temperature operation to +105 °C
• High gain: 21 dB @ 0.45 GHz
• IIP3: +16 dBm @ 0.45 GHz
• High IP1dB performance: +1 dBm @ 0.45 GHz
• Adjustable supply current and gain
• Temperature and process-stable active bias
• Miniature DFN (8-pin, 2 x 2 mm) package (MSL1 @ 260 °C per
JEDEC J-STD-020)
Figure 1. SKY67110-396LF Block Diagram
Description
The SKY67110-396LF is GaAs, pHEMT Low-Noise Amplifier (LNA)
with an active bias and high linearity performance. The advanced
GaAs pHEMT enhancement mode process provides excellent
return loss, low noise, and high linearity performance.
The internal active bias circuitry provides stable performance over
temperature and process variation. The device offers the ability to
externally adjust supply current and gain. Supply voltage is
applied to the RFOUT/VDD pin through an RF choke inductor. Pin 4
(VBIAS) should be connected to RFOUT/VDD through an external
resistor to control the supply current. The RFIN and RFOUT/VDD
pins should be DC blocked to ensure proper operation. Pin 5
(FEEDBACK) is connected through an RC network to externally
adjust the gain of the device without affecting the Noise Figure
(NF) of the LNA.
The SKY67110-396LF operates in the frequency range of 0.30 to
0.75 GHz with proper tuning.
The LNA is manufactured in a compact, 2 x 2 mm, 8-pin Dual Flat
No-Lead (DFN) package. A functional block diagram is shown in
Figure 1. The pin configuration and package are shown in
Figure 2. Signal pin assignments and functional pin descriptions
are provided in Table 1.
Figure 2. SKY67110-396LF Pinout – 8-Pin DFN
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201792B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 14, 2013
1
DATA SHEET • SKY67110-396LF HIGH LINEARITY, ACTIVE BIAS LNA
Table 1. SKY67110-396LF Signal Descriptions
Pin #
Name
Description
Pin #
Name
Description
1
N/C
No connection. May be connected to ground
with no change in performance.
5
FEEDBACK
LNA external gain control. Connect to
RFOUT using a series RD network.
2
RFIN
RF input. DC blocking capacitor required.
6
N/C
No connection. May be connected to ground
with no change in performance.
3
RFGND
RF ground. Connect to ground through a
capacitor.
7
RFOUT/VDD
RF output. Apply VDD through RF choke
inductor. DC blocking capacitor required.
4
VBIAS
LNA supply current. Connect through series
resistor to VDD or bias separately through
DC header, pin 4.
8
N/C
No connection. May be connected to ground
with no change in performance.
Table 2. SKY67110-396LF Absolute Maximum Ratings
Parameter
Symbol
Supply voltage
VDD
RF input power
PIN
Storage temperature
TSTG
Thermal resistance
θJC
Operating temperature
TA
Junction temperature
TJ
Electrostatic Discharge:
Charged Device Model (CDM), Class 4
Human Body Model (HBM), Class 1A
Machine Model (MM), Class A
ESD
Note:
Minimum
–65
Typical
+25
Maximum
Units
5.5
V
+20
dBm
+150
°C
°C/W
62.2
–40
+25
+105
°C
+150
°C
1000
250
25
V
V
V
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.
CAUTION: 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. Static charges may easily produce potentials of several kilovolts on the human body
or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times.
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY67110-396LF are
provided in Table 2. Electrical specifications are provided in
Table 3.
Typical performance characteristics of the SKY67110-396LF are
illustrated in Figures 3 through 19.
Table 4 provides noise source pull information versus frequency.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2
January 14, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201792B
DATA SHEET • SKY67110-396LF HIGH LINEARITY, ACTIVE BIAS LNA
Table 3. SKY67110-396LF Electrical Specifications (Note 1)
(VDD = 5.0 V, IDD = 76 mA, TA = +25 °C, PIN = –20 dBm, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Min
Typical
Max
Units
0.65
0.90
dB
RF Specifications
Noise Figure (Note 2)
NF
@ 0.45 GHz
Small signal gain
|S21|
@ 0.45 GHz
20
21
dB
Input return loss
|S11|
@ 0.45 GHz
13.0
17.5
dB
Output return loss
|S22|
@ 0.45 GHz
12
18
dB
Reverse isolation
|S12|
@ 0.45 GHz
25
28
dB
3rd Order Input Intercept Point
IIP3
@ 0.45 GHz, Δf = 5 MHz,
PIN = –20 dBm/tone
+13
+16
dBm
3rd Order Output Intercept Point
OIP3
@ 0.45 GHz, Δf = 5 MHz,
PIN = –20 dBm/tone
+34
+37
dBm
1 dB Input Compression Point
IP1dB
@ 0.45 GHz
–1
+1
dBm
1 dB Output Compression Point
OP1dB
@ 0.45 GHz
+19
+21
dBm
Stability
μ1, μ2
Up to 18 GHz,
–40 °C to +105 °C
>1
–
DC Specifications
Supply voltage
VDD
Supply current
IDD
5.0
Set with external resistor
65
76
V
85
mA
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Note 2 Board and connector losses have not been de-embedded.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201792B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 14, 2013
3
DATA SHEET • SKY67110-396LF HIGH LINEARITY, ACTIVE BIAS LNA
Typical Performance Characteristics
(VDD = 5.0 V, IDD = 76 mA, TA = +25 °C, PIN = –20 dBm, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted)
Figure 3. Broadband Gain Response vs Frequency
Over Temperature
Figure 4. Narrowband Gain Response vs Frequency
Over Temperature
Figure 5. Broadband Input Return Loss vs Frequency
Over Temperature
Figure 6. Narrowband Input Return Loss vs Frequency
Over Temperature
Figure 7. Broadband Reverse Isolation vs Frequency
Over Temperature
Figure 8. Narrowband Reverse Isolation vs Frequency
Over Temperature
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
4
January 14, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201792B
DATA SHEET • SKY67110-396LF HIGH LINEARITY, ACTIVE BIAS LNA
Figure 9. Broadband Output Return Loss vs Frequency
Over Temperature
Figure 10. Narrowband Output Return Loss vs Frequency
Over Temperature
Figure 11. Noise Figure vs Frequency Over Temperature
Figure 12. IIP3 vs Frequency Over Temperature
Figure 13. IIP3 vs Input power/Tone @ 0.45 GHz Over
Temperature
Figure 14. Gain @ 0.45 GHz vs Input Power Over Temperature
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201792B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 14, 2013
5
DATA SHEET • SKY67110-396LF HIGH LINEARITY, ACTIVE BIAS LNA
Figure 15. μ Stability vs Frequency Over Temperature
Figure 16. μ1 Stability vs Frequency Over Temperature
Figure 17. OIP3 Load Pull @ 0.35 GHz, 5 V, 76 mA
(Input Load = NF Min., –20 dBm/Tone, 5 MHz Spacing)
Figure 18. OIP3 Load Pull @ 0.45 GHz, 5 V, 76 mA
(Input Load = NF Min., –20 dBm/Tone, 5 MHz Spacing)
Figure 19. OIP3 Load Pull @ 0.75 GHz, 5 V, 76 mA
(Input Load = NF Min., –20 dBm/Tone, 5 MHz Spacing)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
6
January 14, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201792B
DATA SHEET • SKY67110-396LF HIGH LINEARITY, ACTIVE BIAS LNA
Table 4. Noise Parameters vs Frequency @ 25 °C, 5 V, 76 mA (1 of 2)
Γopt
Frequency
(GHz)
Minimum Noise
Figure (FMIN)
(dB)
Noise Resistance
(RN)
(Ω)
Phase
Associated Gain
(dB)
Maximum Gain
(GMAX)
(dB)
Magnitude
0.35
0.4326
0.0000
0.1806
69.36
23.4394
23.82222468
0.40
0.4819
0.0100
0.1797
70.08
22.3696
22.68049256
0.45
0.5265
0.0300
0.1796
70.95
21.3451
21.59645184
0.50
0.5671
0.0473
0.1800
71.94
20.3647
20.56825726
0.55
0.6042
0.0622
0.1810
73.05
19.4273
19.59406356
0.60
0.6385
0.0749
0.1827
74.28
18.5316
18.67202547
0.65
0.6707
0.0857
0.1848
75.60
17.6766
17.80029773
0.70
0.7014
0.0949
0.1875
77.01
16.8610
16.97703507
0.75
0.7313
0.1026
0.1906
78.51
16.0838
16.20039224
0.80
0.7610
0.1092
0.1942
80.09
15.3437
15.46852398
0.85
0.7912
0.1150
0.1983
81.73
14.6396
14.77958501
0.90
0.8224
0.1202
0.2027
83.42
13.9704
14.13173007
0.95
0.8555
0.1251
0.2076
85.17
13.3349
13.52311391
1.00
0.8909
0.1298
0.2128
86.95
12.7320
12.95189125
1.05
0.9294
0.1348
0.2183
88.76
12.1604
12.41621685
1.10
0.9716
0.1402
0.2242
90.60
11.6190
11.91424542
1.15
1.0181
0.1464
0.2303
92.44
11.1068
11.44413172
1.20
1.0697
0.1535
0.2367
94.29
10.6224
11.00403047
1.25
1.1269
0.1619
0.2433
96.14
10.1648
10.59209642
1.30
1.1904
0.1718
0.2501
97.97
9.7328
10.2064843
1.35
1.2608
0.1835
0.2571
99.78
9.3253
9.845348845
1.40
1.3388
0.1972
0.2643
101.55
8.9410
9.506844798
1.45
1.4251
0.2133
0.2716
103.29
8.5789
9.189126894
1.50
1.5203
0.2319
0.2790
104.97
8.2378
8.890349869
1.55
1.6250
0.2533
0.2864
106.60
7.9165
8.608668461
1.60
1.7399
0.2778
0.2939
108.16
7.6139
8.342237407
1.65
1.8657
0.3057
0.3015
109.64
7.3288
8.089211444
1.70
2.0029
0.3371
0.3090
111.03
7.0601
7.847745308
1.75
2.1522
0.3725
0.3165
112.34
6.8066
7.615993738
1.80
2.3144
0.4120
0.3240
113.54
6.5671
7.392111469
1.85
2.4900
0.4560
0.3314
114.62
6.3405
7.174253239
1.90
2.6796
0.5046
0.3386
115.59
6.1256
6.960573785
1.95
2.8840
0.5581
0.3458
116.43
5.9213
6.749227845
2.00
3.1038
0.6168
0.3528
117.12
5.7265
6.538370154
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201792B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 14, 2013
7
DATA SHEET • SKY67110-396LF HIGH LINEARITY, ACTIVE BIAS LNA
Table 4. Noise Parameters vs Frequency @ 25 °C (2 of 2)
Γopt
Frequency
(GHz)
Minimum Noise
Figure (FMIN)
(dB)
Noise Resistance
(RN)
(Ω)
Phase
Associated Gain
(dB)
Maximum Gain
(GMAX)
(dB)
Magnitude
2.05
3.3396
0.6810
0.3596
117.67
5.5399
6.32615545
2.10
3.5920
0.7510
0.3662
118.07
5.3604
6.110738471
2.15
3.8618
0.8269
0.3725
118.30
5.1869
5.890273953
2.20
4.1496
0.9091
0.3786
118.35
5.0182
5.662916633
2.25
4.4559
0.9978
0.3844
118.22
4.8532
5.426821248
2.30
4.7816
1.0932
0.3899
117.90
4.6906
5.180142536
2.35
5.1272
1.1958
0.3951
117.38
4.5293
4.921035233
2.40
5.4933
1.3056
0.3999
116.64
4.3683
4.647654076
2.45
5.8806
1.4230
0.4043
115.69
4.2063
4.358153803
2.50
6.2898
1.5482
0.4083
114.52
4.0421
4.050689151
Evaluation Board Description
Package and Handling Information
The SKY67110-396LF Evaluation Board is used to test the
performance of the SKY67110-396LF LNA. An assembly drawing
for the Evaluation Board is shown in Figure 20. An Evaluation
Board schematic diagram is provided in Figure 21. Table 5
provides the Bill of Materials (BOM) list for Evaluation Board
components.
Instructions on the shipping container label regarding exposure to
moisture after the container seal is broken must be followed.
Otherwise, problems related to moisture absorption may occur
when the part is subjected to high temperature during solder
assembly.
The test board uses a 10 mil Rogers 4350B substrate on a 50 mil
FR4 supporting substrate. The Rogers 4350B material was
selected for the RF circuit because of its low dielectric constant
(εr) and low εr variation over temperature for the best possible
noise performance.
Package Dimensions
THE SKY67110-396LF is rated to Moisture Sensitivity Level 1
(MSL1) at 260 °C. It can be used for lead or lead-free soldering.
For additional information, refer to the Skyworks Application Note,
Solder Reflow Information, document number 200164.
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
tape and reel format.
The PCB layout footprint for the SKY67110-396LF is provided in
Figure 22. Typical case markings are shown in Figure 23.
Package dimensions for the 8-pin DFN are shown in Figure 24,
and tape and reel dimensions are provided in Figure 25.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
8
January 14, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201792B
DATA SHEET • SKY67110-396LF HIGH LINEARITY, ACTIVE BIAS LNA
Figure 20. SKY67110-396LF Evaluation Board Assembly Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201792B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 14, 2013
9
DATA SHEET • SKY67110-396LF HIGH LINEARITY, ACTIVE BIAS LNA
Figure 21. SKY67110-396LF Evaluation Board Schematic
Table 5. SKY67110-396LF Evaluation Board Bill of Materials
Component
Value
Size
Manufacturer
Part #
Comments
M1
9 pF
0402
Murata
GJM1555C1H9R0DB01
Capacitor
M2, M8, M9, M19
DNI
–
–
–
–
M3
1 nH
0402
Coilcraft
0402HP-1N0XJL
Inductor
M4
82 pF
0402
Murata
GRM1555C1H820JZ01
Capacitor
M5
22 nH
0402
Coilcraft
0402HP-22NX_L
Inductor
M6
7500 Ω
0402
Panasonic
ERJ-2GEJ752X
Resistor
M7, M15, M17
1000 pF
0402
Murata
GRM155R71H102KA01
Capacitor
M10
8.2 pF
0402
Murata
GRM1555C1H8R2DZ01
Capacitor
M11
12 nH
0402
Murata
LQG15HS12NJ02
Inductor
M12
22 nH
0402
TDK
MLG1005S22NJ
Inductor
M13
120 pF
0402
Murata
GRM1555C1H121JA01
Capacitor
M14
2.2 pF
0402
Murata
GRM1555C1H2R2CZ01
Capacitor
M16, M18
0Ω
0402
Panasonic
ERJ2GE0R00X
Resistor
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
10
January 14, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201792B
DATA SHEET • SKY67110-396LF HIGH LINEARITY, ACTIVE BIAS LNA
Figure 22. SKY67110-396LF PCB Layout Footprint
(Top View)
Figure 23. Typical Case Markings
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201792B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 14, 2013
11
DATA SHEET • SKY67110-396LF HIGH LINEARITY, ACTIVE BIAS LNA
Figure 24. SKY67110-396LF 8-Pin DFN Package Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
12
January 14, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201792B
DATA SHEET • SKY67110-396LF HIGH LINEARITY, ACTIVE BIAS LNA
Figure 25. SKY67110-396LF Tape and Reel Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201792B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 14, 2013
13
DATA SHEET • SKY67110-396LF HIGH LINEARITY, ACTIVE BIAS LNA
Ordering Information
Model Name
SKY67110-396LF LNA
Manufacturing Part Number
SKY67110-396LF
Evaluation Board Part Number
SKY67110-396LF-EVB
Copyright © 2012, 2013 Skyworks Solutions, Inc. All Rights Reserved.
Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by
Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the
information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to
update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes.
No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or
information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of
Sale.
THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A
PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY
DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS
SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION,
LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury,
death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any
damages resulting from such improper use or sale.
Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of
products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for
applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters.
Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands
and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com,
are incorporated by reference.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
14
January 14, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201792B