SKYWORKS SKY65048

DATA SHEET
SKY65048-360LF: 0.7-1.2 GHz Low Noise Amplifier
Applications
InterStage
Match
x Wireless infrastructure: GSM, CDMA, WCDMA, ISM, and
TD-SCDMA
x Ultra-low noise applications
Figure 1. SKY65048-360LF Block Diagram
Features
x Ultra-low Noise Figure = 0.65 dB @ 900 MHz
x Excellent input and output return loss
x Adjustable gain = 16.5 to 21.5 dB @ 900 MHz
x High output OIP3 = +35.5 dBm @ 85 mA
x OP1dB = +18.5 dBm @ 900 MHz
x Single, positive DC supply voltage
x Adjustable supply current, 30 to 100 mA
x Small, QFN (8-pin, 2 x 2 mm) package (MSL1, 260 qC per
JEDEC J-STD-020)
Description
The SKY65048-360LF is a high performance, two-stage ultra-low
noise amplifier. The device is fabricated from Skyworks advanced
pHEMT process and is provided in a 2 x 2 mm, 8-pin Quad Flat
No-Lead (QFN) package.
The device features excellent input and output return loss, an
integrated interstage matching network, and integrated source
inductors for 1st and 2nd stage transistors. The amplifier’s ultralow Noise Figure (NF), high gain, and excellent 3rd Order Intercept
point (IP3) allow it to be used in various receiver and transmitter
applications.
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.
BIAS1
1
8
BIAS2
RFIN
2
7
RFOUT/VDD2
N/C
3
6
N/C
VDD1
4
5
FEEDBACK
Figure 2. SKY65048-360LF Pinout – 8-Pin QFN
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201101D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 12, 2009
1
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
Table 1. SKY65048-360LF Signal Descriptions
Pin #
Name
Description
st
Pin #
Name
Description
1
BIAS1
Source lead for 1 stage transistor
5
FEEDBACK
Connect to RFOUT/VDD2 to reduce gain of
2nd stage transistor
2
RFIN
RF input
6
N/C
No connection
3
N/C
No connection
7
RFOUT/VDD2
RF output. Requires a DC bias using an RF
choke inductor.
4
VDD1
1st stage DC power supply
8
BIAS2
Source lead for 2nd stage transistor
Functional Description
Source Inductance
The SKY65048-360LF is a two stage, low noise amplifier with an
integrated interstage matching network and source inductors. The
device has a tested low NF of 0.65 dB and gain of 16.5 dB with
the recommended matching circuit. The device allows designers
to adjust current and gain without degrading the NF.
The source inductance required on pins 1 and 8 (BIAS1 and BIAS2
signals, respectively) has been integrated on the die. This
simplifies board layout and reduces build variations.
The external matching network largely dictates the RF
performance of the device. The matching network is required for
operation and special care should be taken when designing a
circuit board layout for the SKY65048-360LF. There are four
separate groups of external components: input, output, biasing,
and feedback.
The input band-pass matching network consists of four
components. Component C1 serves as the input DC blocking
capacitor, C2 provides high frequency stability and improved input
return loss, and L1 and L2 are responsible for the best noise
match looking into the gate of the first stage amplifier.
Biasing
To properly bias a depletion mode pHEMT, both the gate and
drain of the device must be biased properly. At VGS = 0 V and
VDS > 2 V, the amplifier stage is in its saturated state and draws
the maximum amount of current, IDSS. A VDS of 5 V is
recommended to ensure proper performance.
To eliminate the need for a negative DC supply, self-biasing
should be used when a resistor is placed between one of the
source leads and ground. A bypass capacitor should be placed in
parallel to this resistor to provide an RF ground and to ensure
performance remains unchanged at the operating frequency.
When current flows from drain to source and through the resistor,
the source voltage becomes biased above DC ground. The gate
pin of the device should be left unbiased at 0 V, which creates the
desired negative VGS value. This simplifies the design by
eliminating the need for a second DC supply. Values for resistor
components R1 and R2 can be changed to easily increase or
decrease the bias current to a desired level.
Input and Output RF Matching Network
Excess board trace should be eliminated at the input of the device
to minimize board losses. High-Q components should be used to
achieve the best NF of the amplifier. Murata GJM series
capacitors and Coilcraft HP or CS series inductors are
recommended. Any excess board or component loss on the input
of the device directly adds to the total measured NF.
The output matching network is band-pass network optimized for
output return loss.
The SKY65048-360LF Evaluation Board assembly diagram is
shown in Figure 31 and a circuit schematic is provided in
Figure 32.
Feedback
Feedback is implemented in the recommended circuit on the 2nd
stage transistor. Feedback improves the input and output return
loss and high frequency stability. The gain of the device can be
increased by increasing the value of R3, which reduces the
amount of feedback present (gain for multiple feedback resistor
values is shown in Figure 30).
The first stage is biased at 20 percent of IDSS to achieve the best
NF performance. The gain and current of the 2nd stage amplifier
can be adjusted without degrading the overall NF. More current in
the 2nd stage yields better IP3 performance.
Biasing components R1, R2, C1, and C2 should be placed as
close to the package pins as possible. See Figure 30 for the
recommended board layout.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
2
November 12, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201101D
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
Measuring NF
Electrical and Mechanical Specifications
Special care should be taken when making < 1 dB NF
measurements. Ideally, measurements should be made in an RF
shield room. An Agilent MXA N9020A spectrum analyzer with an
internal pre-amp paired with an N4001A smart noise source was
used for all noise measurements. The smart noise source has an
internal thermocouple that automatically sets the TCOLD setting on
the analyzer. If a smart noise source is unavailable, a standard
low Excess Noise Ratio (ENR) source should be used. Use an
external thermocouple to manually adjust the TCOLD setting to
ensure accurate results.
The absolute maximum ratings of the SKY65048-360LF are
provided in Table 2. The recommended operating conditions are
specified in Table 3 and electrical specifications are provided in
Table 4.
Performance characteristics for the SKY65048-360LF are
illustrated in Figures 3 through 30.
Table 2. SKY65048-360LF Absolute Maximum Ratings
Parameter
Symbol
Minimum
Typical
Maximum
Units
Supply voltage
VDD
5.5
V
Input power
PIN
+15
dBm
Supply current stage one
IDS1
100
mA
Supply current stage two
IDS2
100
mA
Power dissipation
PDIS
665
mW
Channel temperature
TJ
Storage temperature
TSTG
–65
+125
qC
Operating temperature
TOP
–40
+85
qC
Thermal resistance
QJC
Note:
qC
150
qC/W
47
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.
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.
Table 3. SKY65048-360LF Recommended Operating Conditions
Parameter
Symbol
Minimum
Typical
Maximum
Units
Supply voltage
VDD
4.75
5.00
5.25
V
Supply current
IDD
30
85
100
mA
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201101D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 12, 2009
3
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
Table 4. SKY65048-360LF Electrical Specifications (Note 1)
(TOP = +25 qC, Characteristic Impedance [ZO] = 50 Ω, VDD = 5 V, IDD = 85 mA, Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Min
Typical
Max
Units
f = 787 MHz Using an 777 to 798 MHz Matching Network
Noise Figure (Note 2)
NF
0.65
dB
Small signal gain
|S21|
16.5
dB
Input return loss
|S11|
–20
dB
Output return loss
|S22|
–7
dB
Reverse isolation
|S12|
–32
dB
+34
dBm
+18
dBm
+17.5
dBm
+2.5
dBm
>1
K
rd
3 Order Output Intercept Point
OIP3
1 dB Output Compression Point
OP1dB
rd
3 Order Input Intercept Point
IIP3
1 dB Input Compression Point
IP1dB
Stability
5 MHz spacing,
PIN = –18 dBm per tone
5 MHz spacing,
PIN = –18 dBm per tone
Unconditionally stable up
to 18 GHz
f = 836 MHz Using an 824 to 849 MHz Matching Network
Noise Figure (Note 2)
NF
0.65
dB
Small signal gain
|S21|
17.5
dB
Input return loss
|S11|
–18
dB
Output return loss
|S22|
–6
dB
Reverse isolation
|S12|
–31
dB
5 MHz spacing,
PIN = –18 dBm per tone
+36.5
dBm
+18
dBm
5 MHz spacing,
PIN = –18 dBm per tone
+19
dBm
+1.5
dBm
>1
K
rd
3 Order Output Intercept Point
OIP3
1 dB Output Compression Point
OP1dB
3rd Order Input Intercept Point
IIP3
1 dB Input Compression Point
IP1dB
Stability
Unconditionally stable up
to 18 GHz
f = 900 MHz Using an 880 to 915 MHz Matching Network
Noise Figure (Note 2)
NF
Small signal gain
|S21|
15.5
0.65
0.85
dB
16.5
17.5
dB
Input return loss
|S11|
–18
dB
Output return loss
|S22|
–10
dB
Reverse isolation
|S12|
3rd Order Output Intercept Point
OIP3
1 dB Output Compression Point
OP1dB
3rd Order Input Intercept Point
IIP3
1 dB Input Compression Point
IP1dB
Stability
–30
dB
5 MHz spacing,
PIN = –18 dBm per tone
+35
dBm
+18
dBm
5 MHz spacing,
PIN = –18 dBm per tone
+18.5
dBm
+2.5
dBm
>1
K
Unconditionally stable up
to 18 GHz
Note 1: Performance is guaranteed only under the conditions listed in this Table and is not guaranteed over the full operating or storage temperature ranges. Exceeding any of the conditions
listed here may result in permanent damage to the device. Operation at elevated temperatures may reduce reliability of the device.
Note 2: Loss from input RF connector and board trace de-embedded from measurement.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
4
November 12, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201101D
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
Typical Performance Characteristics
20
0
18
16
14
–2
Output Return Loss (dB)
Small Signal Gain (dB)
(TOP = +25 qC, Characteristic Impedance [ZO] = 50 Ω, VDD = 5 V, IDD = 85 mA, Parameters Include a Recommended
777-798 MHz Matching Network, Unless Otherwise Noted)
12
10
8
6
4
2
0
0.5
–4
–6
–8
–10
–12
–14
–16
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
0.5
1.5
0.6
0.7
0.8
1.0
1.1
1.2
1.3
1.2
Noise Figure (dB)
–5
–10
–15
–20
1.0
0.8
0.6
+85 oC
+25 oC
–40 oC
0.4
–25
0.2
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
0
0.70
Frequency (GHz)
0.75
0.80
0.85
0.90
0.95
1.00
Frequency (GHz)
Figure 5. Input Return Loss vs Frequency @ 25 °C
(PIN = –20 dBm)
Figure 6. Noise Figure vs Frequency Over Temperature
0
+35.0
–5
+34.8
+34.6
–10
–15
OIP3 (dBm)
Reverse Isolation (dB)
1.5
1.4
0
–30
1.4
Figure 4. Output Return Loss vs Frequency @ 25 °C
PIN = –20 dBm
Figure 3. Small Signal Gain vs Frequency @ 25 °C
(PIN = –20 dBm)
Input Return Loss (dB)
0.9
Frequency (GHz)
Frequency (GHz)
–20
–25
–30
–35
–40
–45
+34.4
+34.2
+34.0
+33.8
+33.6
+85 oC
+25 oC
–40 oC
+33.4
–50
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
Frequency (GHz)
Figure 7. Reverse Isolation vs Frequency @ 25 °C
(PIN = –20 dBm)
1.5
+33.2
+33.0
775
780
785
790
795
800
Frequency (MHz)
Figure 8. OIP3 vs Frequency Over Temperature
(PIN = –18 dBm/Tone, 5 MHz Tone Spacing)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201101D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 12, 2009
5
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
20
8
7
18
17
Gain (dB)
μ1, μ2
6
5
4
3
16
15
14
13
2
12
1
11
0
777 MHz 25 oC
787 MHz 25 oC
798 MHz 25 oC
19
μ1 +25 oC
μ2 +25 oC
0
2
4
6
8
10
12
14
16
10
18
–20
–15
–10
Frequency (GHz)
–5
Figure 9. Stability vs Frequency @ 25 °C
(PIN = –20 dBm)
+38
OIP3 (dBm)
+36
+34
+32
777 MHz +25 oC
777 MHz +85 oC
777 MHz –40 oC
787 MHz +25 oC
787 MHz +85 oC
787 MHz –40 oC
798 MHz +25 oC
798 MHz +85 oC
798 MHz –40 oC
+28
+26
–20
–18
–16
–14
–12
–10
–8
–6
–4
Input Power/Tone (dBm)
Figure 11. OIP3 vs Input Power Over Temperature and Frequency
(Tone Spacing = 5 MHz)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
6
+5
Figure 10. Gain vs Input Power Over Temperature and Frequency
+40
+30
0
Input Power (dBm)
November 12, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201101D
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
Typical Performance Characteristics
(TOP = +25 qC, Characteristic Impedance [ZO] = 50 Ω, VDD = 5 V, IDD = 85 mA, Parameters Include a Recommended
824-849 MHz Matching Network, Unless Otherwise Noted)
0
25
+85 oC
+25 oC
–40 oC
20
Output Return Loss (dB)
Small Signal Gain (dB)
–2
15
10
5
+85 oC
+25 oC
–40 oC
–4
–6
–8
–10
–12
–14
–16
0
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
0.5
1.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
Frequency (GHz)
Frequency (GHz)
Figure 12. Small Signal Gain vs Frequency Over Temperature
(PIN = –20 dBm)
Figure 13. Output Return Loss vs Frequency Over Temperature
PIN = –20 dBm
1.4
0
–5
Noise Figure (dB)
Input Return Loss (dB)
1.2
–10
–15
+85 oC
+25 oC
–40 oC
–20
1.0
0.8
0.6
0.4
+85 oC
+25 oC
–40 oC
0.2
0
0.70
–25
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
0.75
0.80
Frequency (GHz)
Figure 14. Input Return Loss vs Frequency Over Temperature
(PIN = –20 dBm)
0.95
1.00
+38.0
+85 oC
+25 oC
–40 oC
–10
–15
+37.5
OIP3 (dBm)
Reverse Isolation (dB)
0.90
Figure 15. Noise Figure vs Frequency Over Temperature
0
–5
–20
–25
–30
+37.0
+36.5
–35
+36.0
–40
–45
+35.5
–50
0.85
Frequency (GHz)
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
Frequency (GHz)
Figure 16. Reverse Isolation vs Frequency Over Temperature
(PIN = –20 dBm)
+85 oC
+25 oC
–40 oC
+35.0
820
825
830
835
840
845
850
855
Frequency (MHz)
Figure 17. OIP3 vs Frequency Over Temperature
(PIN = –18 dBm/Tone, 5 MHz Tone Spacing)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201101D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 12, 2009
7
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
20
8
7
6
μ2 –40 oC
μ2 +25 oC
μ2 +85 oC
5
4
Gain (dB)
μ1, μ2
19
μ1 –40 oC
μ1 +25 oC
μ1 +85 oC
3
18
17
16
15
14
2
13
12
1
11
0
0
2
4
6
8
10
12
14
16
824 MHz +25 oC
836 MHz +25 oC
849 MHz +25 oC
10
–20
18
–15
Frequency (GHz)
–10
824 MHz +85 oC
836 MHz +85 oC
849 MHz +85 oC
–5
+38
OIP3 (dBm)
+36
+34
+32
824 MHz +25 oC
824 MHz +85 oC
824 MHz –40 oC
836 MHz +25 oC
836 MHz +85 oC
836 MHz –40 oC
849 MHz +25 oC
849 MHz +85 oC
849 MHz –40 oC
+28
–18
–16
–14
–12
–10
–8
–6
–4
Input Power/Tone (dBm)
Figure 20. OIP3 vs Input Power Over Temperature and Frequency
(Tone Spacing = 5 MHz)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
8
+5
Figure 19. Gain vs Input Power Over Temperature and Frequency
+40
+26
–20
0
Input Power (dBm)
Figure 18. Stability vs Frequency Over Temperature
(PIN = –20 dBm)
+30
824 MHz –40 oC
836 MHz –40 oC
849 MHz –40 oC
November 12, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201101D
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
Typical Performance Characteristics
(TOP = +25 qC, Characteristic Impedance [ZO] = 50 Ω, VDD = 5 V, IDD = 85 mA, Parameters Include a Recommended
880-915 MHz Matching Network, Unless Otherwise Noted)
0
+85 oC
+25 oC
–40 oC
18
16
14
–2
Output Return Loss (dB)
Small Signal Gain (dB)
20
12
10
8
6
4
2
0
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
–4
–6
–8
+85 oC
+25 oC
–40 oC
–10
–12
–14
–16
0.5
1.5
0.6
0.7
0.8
0.9
1.1
1.2
1.3
1.4
1.5
Figure 22. Output Return Loss vs Frequency Over Temperature
PIN = –20 dBm
0
1.4
–2
1.2
–4
Noise Figure (dB)
Input Return Loss (dB)
Figure 21. Small Signal Gain vs Frequency Over Temperature
(PIN = –20 dBm)
–6
–8
–10
–12
+85 oC
+25 oC
–40 oC
–14
–16
–18
–20
+85 oC
+25 oC
–40 oC
1.0
0.8
0.6
0.4
0.2
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
0
1.5
0.70
0.75
0.80
0.85
Frequency (GHz)
0.95
1.00
Figure 24. Noise Figure vs Frequency Over Temperature
0
36.0
+85 oC
+25 oC
–40 oC
–5
35.8
OIP3 (dBm)
–10
–15
–20
–25
–30
–35
35.6
35.4
35.2
35.0
34.8
34.6
+85 oC
+25 oC
–40 oC
34.4
–40
–45
–50
0.5
0.90
Frequency (GHz)
Figure 23. Input Return Loss vs Frequency Over Temperature
(PIN = –20 dBm)
Reverse Isolation (dB)
1.0
Frequency (GHz)
Frequency (GHz)
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
Frequency (GHz)
Figure 25. Reverse Isolation vs Frequency Over Temperature
(PIN = –20 dBm)
34.2
34.0
875
880
885
890
895
900
905
910
915
920
Frequency (MHz)
Figure 26. OIP3 vs Frequency Over Temperature
(PIN = –18 dBm/Tone, 5 MHz Tone Spacing)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201101D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 12, 2009
9
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
20
8
5
Gain (dB)
6
μ1, μ2
19
μ1 –40 oC
μ1 +25 oC
μ1 +85 oC
7
μ2 –40 oC
μ2 +25 oC
μ2 +85 oC
4
3
18
17
16
15
14
2
13
12
1
11
0
0
2
4
6
8
10
12
14
16
18
900 MHz +25 oC
880 MHz +25 oC
915 MHz +25 oC
10
–20
–15
900 MHz +85 oC
880 MHz +85 oC
915 MHz +85 oC
–10
900 MHz –40 oC
880 MHz –40 oC
915 MHz –40 oC
–5
0
+5
Input Power (dBm)
Frequency (GHz)
Figure 28. Gain vs Input Power Over Temperature and Frequency
Figure 27. Stability vs Frequency Over Temperature
(PIN = –20 dBm)
24
+40
22
Small Signal Gain (dB)
+38
OIP3 (dBm)
+36
+34
+32
880 MHz +25 oC
880 MHz +85 oC
880 MHz –40 oC
+30
+28
+26
–20
–18
–16
900 MHz +25 oC
900 MHz +85 oC
900 MHz –40 oC
–14
–12
915 MHz +25 oC
915 MHz +85 oC
915 MHz –40 oC
–10
–8
20
18
16
10 Ω
50 Ω
100 Ω
200 Ω
500 Ω
Removed
14
12
–6
10
0.70
0.75
0.80
0.85
Input Power/Tone (dBm)
0.90
0.95
1.00
1.05
1.10
1.15
1.20
Frequency (GHz)
Figure 29. OIP3 vs Input Power Over Temperature and Frequency
(Tone Spacing = 5 MHz)
Figure 30. Small Signal Gain vs Frequency for Multiple Feedback
Resistor Values
Evaluation Board Description
Board material is 10 mil thick VT47 FR4 with 1 oz. copper
cladding. RF input and output traces are 50 Ω.
The SKY65048-360LF Evaluation Board is used to test the
performance of the SKY65048-360LF low noise amplifier. An
assembly drawing for the Evaluation Board is shown in Figure 31.
The Evaluation Board schematic diagram is shown in Figure 32.
Tables 5 and 6 provide the Evaluation Board reference circuit Bills
of Materials (BOMs) for the 777 to 798 MHz frequency range and
824 to 849 frequency range, respectively. Table 7 provides the
BOM for the available 880 to 915 MHz test board.
Input and output trace lengths have been minimized to reduce
losses. All surface mount components are 0402-sized to reduce
component parasitics. The use of 0603 or larger components is
not recommended. Component spacing has also been minimized.
The board is provisioned with two RF connectors and a DC
launch. The RF connector and board loss up to component C1 is
approximately 0.05 dB at 900 MHz.
It is very important to place multiple ground vias as close to shunt
components as possible. This ensures proper grounding and
circuit performance.
Evaluation Board Test Procedure
Step 1: Connect RF test equipment to amplifier input/output SMA
connectors.
Step 2: Connect DC ground.
Step 3: Connect VDD to a +5 V supply with a current limit of
100 mA. Verify that the board draws approximately
85 mA.
Step 4: Apply RF signal or noise source and verify performance
detailed in Table 4.
Package Dimensions
The PCB layout footprint for the SKY65048-360LF is shown in
Figure 33. Typical case markings are shown in Figure 34.
Package dimensions for the 8-pin QFN are shown in Figure 35,
and tape and reel dimensions are provided in Figure 36.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
10
November 12, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201101D
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
Package and Handling Information
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.
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. For packaging details, refer to the Skyworks
Application Note, Discrete Devices and IC Switch/Attenuators
Tape and Reel Package Orientation, document number 200083.
THE SKY65048-360LF is rated to Moisture Sensitivity Level 1
(MSL1) at 260 qC. It can be used for lead or lead-free soldering.
S1513
Figure 31. SKY65048-360LF Evaluation Board Assembly Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201101D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 12, 2009
11
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
C4
1
C1
L2
BIAS1
BIAS2
R2
8
C3
C9
2
RF Input
C14
C5
R1
RF Output
C7
C2
L1
×
3
N/C
N/C
6
C8
R3
C11
FEEDBACK 5
VDD1
C15
L4
×
C6
4
C16
RFOUT/VDD2 7
RFIN
C18
L3
L5
R5
C13
C10
C17
R4
C12
C19
VDD
Note: Some component labels may be different than the
corresponding component symbol shown here.
Component values, however, as noted in Tables 5,
6, and 7 are accurate as of the date of this Data Sheet.
S1804
Figure 32. SKY65048-360LF Evaluation Board Schematic
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
12
November 12, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201101D
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
Table 5. SKY65048-360LF (QFN Package) Evaluation Board Bill of Materials (777 to 798 MHz)
Component
C1
Value
5 pF
Size
SMT 0402
Manufacturer
Murata
Part Series
GJM
C2
0.5 pF
SMT 0402
Murata
GJM
C3, C8, C13, C14, C19
DNP
–
–
–
C4
4700 pF
SMT 0402
Murata
GRM
C5
1000 pF
SMT 0402
Murata
GRM
C6
0.5 pF
SMT 0402
Murata
GJM
C7
3.9 pF
SMT 0402
Murata
GRM
C9
30 pF
SMT 0402
Murata
GRM
C10
15 pF
SMT 0402
Murata
GRM
C11
1 pF
SMT 0402
Murata
GRM
C12
1000 pF
SMT 0402
Murata
GRM
C15
1.8 pF
SMT 0402
Murata
GRM
C16
1.5 nH
SMT 0402
Taiyo Yuden
–
C17
10 pF
SMT 0402
Murata
GRM
C18
1000 pF
SMT 0402
Murata
GRM
L1
11 nH
SMT 0402
Coilcraft
CS
L2
1.9 nH
SMT 0402
Coilcraft
CS
L3
3 kΩ
SMT 0402
Panasonic
–
L4
8.2 nH
SMT 0402
Taiyo Yuden
–
L5
15 nH
SMT 0402
Taiyo Yuden
–
R1
12 Ω
SMT 0402
Panasonic
–
R2
9.1 Ω
SMT 0402
Panasonic
–
R3
10 Ω
SMT 0402
Panasonic
–
R4
5.1 Ω
SMT 0402
Panasonic
–
R5
7.5 Ω
SMT 0402
Panasonic
–
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201101D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 12, 2009
13
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
Table 6. SKY65048-360LF (QFN Package) Evaluation Board Bill of Materials (824 to 849 MHz)
Component
C1
Value
5 pF
Size
SMT 0402
Manufacturer
Murata
Part Series
GJM
C2
0.5 pF
SMT 0402
Murata
GJM
C3, C8, C13, C14, C19
DNP
–
–
–
C4
4700 pF
SMT 0402
Murata
GRM
C5
1000 pF
SMT 0402
Murata
GRM
C6
0.5 pF
SMT 0402
Murata
GJM
C7
2.7 pF
SMT 0402
Murata
GRM
C9
30 pF
SMT 0402
Murata
GRM
C10
15 pF
SMT 0402
Murata
GRM
C11
1 pF
SMT 0402
Murata
GRM
C12
1000 pF
SMT 0402
Murata
GRM
C15
1.8 pF
SMT 0402
Murata
GRM
C16
1.5 nH
SMT 0402
Taiyo Yuden
–
C17
10 pF
SMT 0402
Murata
GRM
C18
1000 pF
SMT 0402
Murata
GRM
L1
11 nH
SMT 0402
Coilcraft
CS
L2
1.9 nH
SMT 0402
Coilcraft
CS
L3
3 kΩ
SMT 0402
Panasonic
–
L4
10 nH
SMT 0402
Taiyo Yuden
–
L5
15 nH
SMT 0402
Taiyo Yuden
–
R1
12 Ω
SMT 0402
Panasonic
–
R2
9.1 Ω
SMT 0402
Panasonic
–
R3
10 Ω
SMT 0402
Panasonic
–
R4
5.1 Ω
SMT 0402
Panasonic
–
R5
7.5 Ω
SMT 0402
Panasonic
–
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
14
November 12, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201101D
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
Table 7. SKY65048-360LF (QFN Package) Evaluation Board Bill of Materials (880 to 915 MHz)
Component
C1
Value
5 pF
Size
SMT 0402
Manufacturer
Murata
Part Series
GJM
C2
0.2 pF
SMT 0402
Murata
GJM
C3, C8, C13, C14, C19
DNP
–
–
–
C4
1000 pF
SMT 0402
Murata
GRM
C5
1000 pF
SMT 0402
Murata
GRM
C6
0.5 pF
SMT 0402
Murata
GJM
C7
2.2 pF
SMT 0402
Murata
GRM
C9
30 pF
SMT 0402
Murata
GRM
C10
12 pF
SMT 0402
Murata
GRM
C11
1 pF
SMT 0402
Murata
GRM
C12
1000 pF
SMT 0402
Murata
GRM
C15
1.8 pF
SMT 0402
Murata
GRM
C16
1.5 nH
SMT 0402
Taiyo Yuden
HK
C17
10 pF
SMT 0402
Murata
GRM
C18
1000 pF
SMT 0402
Murata
GRM
L1
11 nH
SMT 0402
Coilcraft
HP
L2
1.9 nH
SMT 0402
Coilcraft
HP
L3
3 kΩ
SMT 0402
Panasonic
–
L4
5.6 nH
SMT 0402
Taiyo Yuden
HK
L5
12 nH
SMT 0402
Taiyo Yuden
HK
R1
12 Ω
SMT 0402
Panasonic
–
R2
9.1 Ω
SMT 0402
Panasonic
–
R3
10 Ω
SMT 0402
Panasonic
–
R4
5.1 Ω
SMT 0402
Panasonic
–
R5
7.5 Ω
SMT 0402
Panasonic
–
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201101D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 12, 2009
15
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
8X 0.70
8X 0.45
R0.20
Pin 1
8X 0.25
0.50 Pitch
2X 0.85
0.25
Exposed Solder Areas
(Typical)
2X 0.45
All dimensions are in millimeters
S1413
Figure 33. SKY65048-360LF PCB Layout Footprint
Pin 1
Indicator
S48
Skyworks Part #
Figure 34. Typical Case Markings
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
16
November 12, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201101D
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
0.90 +0.10/–0.15
C
0.20 Ref
Seating Plane
A
2
B
0.45 +0.05/–0.07
Exposed Pad
Detail A
0.02 +0.03/–0.02
Pin 1
Indicator
-B-
2
0.15 C
2X
8X
3
0.08 C
Detail C
0.90 ± 0.10
0.15 C
2X
1.70 +0.10/–0.15
0.85 +0.05/–0.07
Detail B
2 Places
0.10 C
Top View
Side View
Bottom View
R0.12 Typ
0.25
0.30 ± 0.10
-A-
CL
R0.20
0.5
0.25 +0.05/–0.07 5
0.10 M C A B
0.05 M C
Detail C
8 Places
Detail B
Detail A
All measurements are in millimeters.
Dimensioning and tolerancing according to ASME Y14.5M-1994.
Coplanarity applies to the exposed heat sink slug as well as the terminals..
Plating requirement per source control drawing (SCD) 2504.
Dimension applies to metalized terminal and is measured between 0.15 mm and 0.30 mm from terminal tip.
S1415
Figure 35. SKY65048-360LF 8-Pin QFN Package Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201101D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 12, 2009
17
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
∅1.50+ P0.10/–0.00
0.30 ± 0.01 (T)
4.00 ± 0.10
Pin #1
4.00 ± 0.10
2.00 ± 0.05
1.75 ± 0.10
B
A
B
8.00 +0.30/–0.10
A
3.50 ± 0.05
2.60 ± 0.10 (Bo)
R0.30 Max
∅1.00 Min.
1.20 ± 0.10 (Ko)
2.60 ± 0.10 (Ao)
B
R0.30 Max
A
Notes:
1. Carrier tape: black conductive polystyrene.
2. Cover tape material: transparent conductive HSA.
3. Cover tape size: 5.40 mm width.
4. All measurements are in millimeters.
Figure 36. SKY65048-360LF Tape and Reel Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
18
November 12, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201101D
S1480
DATA SHEET • SKY65048-360LF LOW NOISE AMPLIFIER
Ordering Information
Model Name
SKY65048-360LF Low Noise Amplifier
Manufacturing Part Number
SKY65048-360LF (Pb-free and Green package)
Evaluation Board Part Number
SKY65048-360LF (880-915 MHz)
Copyright © 2009 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 • [email protected] • www.skyworksinc.com
201101D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 12, 2009
19