SKY67107-306LF - Skyworks Solutions, Inc.

DATA SHEET
SKY67107-306LF: 2.3-2.8 GHz Two-Stage, High Linearity and
High Gain Low-Noise Amplifier
Applications
• LTE cellular infrastructure and ISM band systems
• Ultra low-noise, high gain and high linearity systems
• Digital satellite radio
Features
• Ultra-low NF: 0.85 dB @ 2.6 GHz
• High gain: 32 dB @ 2.6 GHz
• Low quiescent current: 125 mA
• Stage 1 and 2 adjustable current
• Wideband performance, useable to 2.8 GHz
• Small, QFN (16-pin, 4 x 4 mm) Pb-free package (MSL1, 260 °C
per JEDEC J-STD-020)
Figure 1. SKY67107-306LF Block Diagram
Description
The SKY67107-306LF is a GaAs pHEMT and HBT two-stage, LowNoise Amplifier (LNA) with active bias and high linearity
performance. The pHEMT front end of the device provides an
ultra-low Noise Figure (NF) while the HBT output stage provides
high gain, linearity, and efficiency.
The SKY67107-306LF operates in the frequency range of 2.3 to
2.8 GHz. For lower frequency operation, the pin and layoutcompatible SKY67105-306LF (Data Sheet document # 201518)
should be used.
The SKY67107-306LF is provided in a 4 x 4 mm, 16-pin Quad Flat
No-Lead (QFN) 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.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY67107-306LF TWO-STAGE LNA
Figure 2. SKY67107-306LF Pinout – 16-Pin QFN
(Top View)
Table 1. SKY67107-306LF Signal Descriptions
Pin #
Name
Description
Pin #
Name
Description
1
N/C
No connection. May be grounded with no
change in performance.
9
N/C
No connection. May be grounded with no
change in performance.
2
N/C
No connection. May be grounded with no
change in performance.
10
RF_OUT2
RF output of second stage amplifier
3
RF_IN1
RF input to first stage amplifier
11
RF_OUT2
RF output of second stage amplifier
4
RF_GND
RF ground for first stage amplifier
12
N/C
No connection. May be grounded with no
change in performance.
5
VBIAS1
Bias for first stage amplifier. External
resistor sets current consumption.
13
N/C
No connection. May be grounded with no
change in performance.
6
FB
Feedback pin for first stage amplifer.
14
N/C
No connection. May be grounded with no
change in performance.
7
RF_OUT1
RF output of first stage amplifer
15
VG2
Stage 2 gate bias
8
RF_IN2
RF input to second stage amplifier
16
VBIAS2
Bias for second stage amplifier. External
resistor sets current consumption.
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY67107-306LF are
provided in Table 2. Eectrical specifications are provided in
Table 3.
Typical performance characteristics of the SKY67107-306LF are
illustrated in Figures 3 through 13.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY67107-306LF TWO-STAGE LNA
Table 2. SKY67107-306LF Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
5.5
V
Supply voltage
VDD
RF input power
PIN
+15
dBm
Operating temperature
TOP
–40
+85
°C
Storage temperature
TSTG
–40
+125
°C
Junction temperature
TJ
Thermal resistance
ΘJC
Note:
+150
°C
85
°C/W
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. The
SKY67107-306LF is a Class 1B ESD device.
Table 3. SKY67107-306LF Electrical Specifications (Note 1)
(VDD = +5 V, TOP = +25 °C, PIN = –30 dBm, Optimized for 2600 MHz Operation, Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Min
Typical
Max
Units
0.85
1.10
dB
RF Specifications
Noise Figure
NF
@ 2600 MHz
Small signal gain
|S21|
@ 2600 MHz
Input return loss
|S11|
@ 2600 MHz
14
dB
Output return loss
|S22|
@ 2600 MHz
17
dB
Reverse isolation
|S12|
@ 2600 MHz
55
dB
3 Order Input Intercept Point
IIP3
@ 2600 MHz,
Δf = 1 MHz,
PIN = –30 dBm/tone
+5.5
dBm
3rd Order Output Intercept Point
OIP3
@ 2600 MHz,
Δf = 1 MHz,
PIN = –30 dBm/tone
+37.5
dBm
1 dB Input Compression Point
IP1dB
@ 2600 MHz
–14.0
–12.5
dBm
1 dB Output Compression Point
OP1dB
@ 2600 MHz
+17.0
+18.5
dBm
5.0
V
125
mA
rd
29
32
dB
DC Specifications
Supply voltage
VDD
Quiescent current
IDD
Set with external resistor
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY67107-306LF TWO-STAGE LNA
Typical Performance Characteristics
(VDD = +5 V, TOP = +25 °C, PIN = –30 dBm, Optimized for 2600 MHz Operation, Unless Otherwise Noted)
Figure 3. Input Return Loss vs Frequency Over Temperature,
Narrow Band
Figure 4. Small Signal Gain vs Frequency Over Temperature,
Narrow Band
Figure 5. Reverse Isolation vs Frequency Over Temperature,
Narrow Band
Figure 6. Output Return Loss vs Frequency Over Temperature,
Narrow Band
Figure 7. Input Return Loss vs Frequency Over Temperature,
Wide Band
Figure 8. Small Signal Gain vs Frequency Over Temperature,
Wide Band
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY67107-306LF TWO-STAGE LNA
Figure 9. Reverse Isolation vs Frequency Over Temperature,
Wide Band
Figure 10. Output Return Loss vs Frequency Over Temperature,
Wide Band
Figure 11. OIP3 vs Frequency Over Temperature
Figure 12. Gain vs Output Power Over Temperature
Figure 13. Noise Figure vs Frequency Over Temperature
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY67107-306LF TWO-STAGE LNA
Evaluation Board Description
Package and Handling Information
The SKY67107-306LF Evaluation Board is used to test the
performance of the SKY67107-306LF two-stage LNA. An
Evaluation Board schematic diagram is provided in Figure 14 and
Table 5 provides the Evaluation Board Bill of Materials.
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 Evaluation Board assembly drawing is shown in Figure 15.
Note that the VDD3 pin on the Evaluation Board does not need to
be connected and should be left open.
THE SKY67107-306LF 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.
Package Dimensions
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 SKY67107-306LF is shown in
Figure 16. Typical case markings are noted in Figure 17. Package
dimensions for the 16-pin QFN are shown in Figure 18, and tape
and reel dimensions are provided in Figure 19.
Figure 14. SKY67107-306LF Evaluation Board Schematic
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY67107-306LF TWO-STAGE LNA
Table 5. SKY67107-306LF Evaluation Board Bill of Materials
Component
Value
Size
Manufacturer
C1
10 pF
0402
Murata GJM
C2
3.6pF
0402
Murata GJM
C3
0.1 μF
0402
Murata GRM
C4
10000 pF
0402
Murata GRM
C5
1000 pF
0402
Murata GRM
C6, C11, C14
DNP
0402
–
C7
100 pF
0402
Murata GRM
C8
1.8 nH
0402
TDK MLG
C9
1.2 pF
0402
Murata GRM
C10
1 μF
0402
Murata GRM
C12
3.9 pF
0402
Murata GRM
C13
100 pF
0402
Murata GRM
C15
6 pF
0403
Murata GJM
L1
3.3 nH
0402
Coilcraft HP
L2
2.4 nH
0402
TDK MLG
L3
33 nH
0402
TDK MLG
L4
1.8 nH
0402
TDK MLG
L5
15 nH
0402
TDK MLG
R1
7.5 kΩ
0402
Panasonic 1%
R2
DNP
0402
–
R3, R4
0Ω
0402
Panasonic
R5
1.8 pF
0402
Murata GRM
R6
6.2 kΩ
0402
Panasonic 1%
Manufacturer Part Number
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY67107-306LF TWO-STAGE LNA
Figure 15. SKY67107-306LF Evaluation Board Assembly Diagram
Figure 16. SKY67107-306LF PCB Layout Footprint
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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December 22. 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201739A
DATA SHEET • SKY67107-306LF TWO-STAGE LNA
Figure 17. Typical Case Markings
Figure 18. SKY67107-306LF 16-Pin QFN Package Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY67107-306LF TWO-STAGE LNA
Figure 19. SKY67107-306LF Tape and Reel Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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December 22. 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201739A
DATA SHEET • SKY67107-306LF TWO-STAGE LNA
Ordering Information
Model Name
SKY67107-306LF Two-Stage LNA
Manufacturing Part Number
SKY67107-306LF
Evaluation Board Part Number
SKY67107-306LF-EVB
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