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DATA SHEET
SKY65048-360LF: 0.7-1.2 GHz Low Noise Amplifier
Applications
Wireless infrastructure: GSM, CDMA, WCDMA, ISM, and TD-SCDMA Ultra-low noise applications
InterStage Match
Figure 1. SKY65048-360LF Block Diagram
Features
Ultra-low Noise Figure = 0.65 dB @ 900 MHz Excellent input and output return loss Adjustable gain = 16.5 to 21.5 dB @ 900 MHz High output OIP3 = +35.5 dBm @ 85 mA OP1dB = +18.5 dBm @ 900 MHz Single, positive DC supply voltage Adjustable supply current, 30 to 100 mA Small, QFN (8-pin, 2 x 2 mm) package (MSL1, 260 C 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 RFIN N/C VDD1
1
8
BIAS2 RFOUT/VDD2 N/C FEEDBACK
2
7
3
6
4
5
Figure 2. SKY65048-360LF Pinout - 8-Pin QFN (Top View)
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DATA SHEET * SKY65048-360LF LOW NOISE AMPLIFIER
Table 1. SKY65048-360LF Signal Descriptions
Pin # 1 2 3 4 BIAS1 RFIN N/C VDD1 Name Description Source lead for 1 stage transistor RF input No connection 1st stage DC power supply
st
Pin # 5 6 7 8
Name FEEDBACK N/C RFOUT/VDD2 BIAS2
Description Connect to RFOUT/VDD2 to reduce gain of 2nd stage transistor No connection RF output. Requires a DC bias using an RF choke inductor. Source lead for 2nd stage transistor
Functional Description
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 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. 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. 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.
Source Inductance 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. Input and Output RF Matching Network 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. 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).
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DATA SHEET * SKY65048-360LF LOW NOISE AMPLIFIER
Measuring NF 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.
Table 2. SKY65048-360LF Absolute Maximum Ratings
Parameter Supply voltage Input power Supply current stage one Supply current stage two Power dissipation Channel temperature Storage temperature Operating temperature Thermal resistance
Note:
Electrical and Mechanical Specifications
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.
Symbol VDD PIN IDS1 IDS2 PDIS TJ TSTG TOP QJC
Minimum
Typical 5.5 +15 100 100 665 150
Maximum
Units V dBm mA mA mW C
-65 -40 47
+125 +85
C C 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.
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 Supply voltage Supply current VDD IDD Symbol Minimum 4.75 30 Typical 5.00 85 Maximum 5.25 100 Units V mA
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DATA SHEET * SKY65048-360LF LOW NOISE AMPLIFIER
Table 4. SKY65048-360LF Electrical Specifications (Note 1) (TOP = +25 C, Characteristic Impedance [ZO] = 50 , 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) Small signal gain Input return loss Output return loss Reverse isolation 3 Order Output Intercept Point 1 dB Output Compression Point 3 Order Input Intercept Point 1 dB Input Compression Point Stability f = 836 MHz Using an 824 to 849 MHz Matching Network Noise Figure (Note 2) Small signal gain Input return loss Output return loss Reverse isolation 3 Order Output Intercept Point 1 dB Output Compression Point 3rd Order Input Intercept Point 1 dB Input Compression Point Stability f = 900 MHz Using an 880 to 915 MHz Matching Network Noise Figure (Note 2) Small signal gain Input return loss Output return loss Reverse isolation 3rd Order Output Intercept Point 1 dB Output Compression Point 3rd Order Input Intercept Point 1 dB Input Compression Point Stability NF |S21| |S11| |S22| |S12| OIP3 OP1dB IIP3 IP1dB Unconditionally stable up to 18 GHz 5 MHz spacing, PIN = -18 dBm per tone 5 MHz spacing, PIN = -18 dBm per tone 15.5 0.65 16.5 -18 -10 -30 +35 +18 +18.5 +2.5 >1 0.85 17.5 dB dB dB dB dB dBm dBm dBm dBm K
rd rd rd
NF |S21| |S11| |S22| |S12| OIP3 OP1dB IIP3 IP1dB Unconditionally stable up to 18 GHz 5 MHz spacing, PIN = -18 dBm per tone 5 MHz spacing, PIN = -18 dBm per tone
0.65 16.5 -20 -7 -32 +34 +18 +17.5 +2.5 >1
dB dB dB dB dB dBm dBm dBm dBm K
NF |S21| |S11| |S22| |S12| OIP3 OP1dB IIP3 IP1dB Unconditionally stable up to 18 GHz 5 MHz spacing, PIN = -18 dBm per tone 5 MHz spacing, PIN = -18 dBm per tone
0.65 17.5 -18 -6 -31 +36.5 +18 +19 +1.5 >1
dB dB dB dB dB dBm dBm dBm dBm K
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.
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DATA SHEET * SKY65048-360LF LOW NOISE AMPLIFIER
Typical Performance Characteristics
(TOP = +25 C, Characteristic Impedance [ZO] = 50 , VDD = 5 V, IDD = 85 mA, Parameters Include a Recommended 777-798 MHz Matching Network, Unless Otherwise Noted)
0 -2
20 18 16 14 12 10 8 6 4 2 0 0.5
Output Return Loss (dB)
Small Signal Gain (dB)
-4 -6 -8 -10 -12 -14 -16 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 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 3. Small Signal Gain vs Frequency @ 25 C (PIN = -20 dBm)
Figure 4. Output Return Loss vs Frequency @ 25 C PIN = -20 dBm
0 -5
1.4 1.2
Input Return Loss (dB)
-10 -15 -20 -25
Noise Figure (dB)
1.0 0.8 0.6 0.4 0.2
+85 oC +25 oC -40 oC
-30
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
Frequency (GHz)
0 0.70
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 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
+35.0 +34.8 +34.6
Reverse Isolation (dB)
OIP3 (dBm)
+34.4 +34.2 +34.0 +33.8 +33.6 +33.4 +33.2 +33.0 775 780 785 790 795 800
+85 oC +25 oC -40 oC
Frequency (GHz)
Frequency (MHz)
Figure 7. Reverse Isolation vs Frequency @ 25 C (PIN = -20 dBm)
Figure 8. OIP3 vs Frequency Over Temperature (PIN = -18 dBm/Tone, 5 MHz Tone Spacing)
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DATA SHEET * SKY65048-360LF LOW NOISE AMPLIFIER
20
8 7 6 1 +25 oC 2 +25 oC
19 18 17
777 MHz 25 oC 787 MHz 25 oC 798 MHz 25 oC
Gain (dB)
0 2 4 6 8 10 12 14 16 18
1, 2
5 4 3 2 1 0
16 15 14 13 12 11 10 -20 -15 -10 -5 0 +5
Frequency (GHz)
Input Power (dBm)
Figure 9. Stability vs Frequency @ 25 C (PIN = -20 dBm)
Figure 10. Gain vs Input Power Over Temperature and Frequency
+40 +38 +36
OIP3 (dBm)
+34 +32 +30 +28 +26 -20 -18 -16 -14 -12 -10 -8 -6 -4
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
Input Power/Tone (dBm)
Figure 11. OIP3 vs Input Power Over Temperature and Frequency (Tone Spacing = 5 MHz)
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DATA SHEET * SKY65048-360LF LOW NOISE AMPLIFIER
Typical Performance Characteristics
(TOP = +25 C, Characteristic Impedance [ZO] = 50 , VDD = 5 V, IDD = 85 mA, Parameters Include a Recommended 824-849 MHz Matching Network, Unless Otherwise Noted)
0 -2
25
Output Return Loss (dB)
Small Signal Gain (dB)
20 15 10 5 0 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3
+85 oC +25 oC -40 oC
-4 -6 -8 -10 -12 -14 -16 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3
+85 oC +25 oC -40 oC
1.4
1.5
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
1.2
Input Return Loss (dB)
Noise Figure (dB)
-5 -10 -15 -20 -25 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
+85 oC +25 oC -40 oC
1.0 0.8 0.6 0.4 0.2 0 0.70
+85 oC +25 oC -40 oC
0.75
0.80
0.85
0.90
0.95
1.00
Frequency (GHz)
Frequency (GHz)
Figure 14. Input Return Loss vs Frequency Over Temperature (PIN = -20 dBm)
Figure 15. Noise Figure vs Frequency Over Temperature
0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
+85 oC +25 oC -40 oC
+38.0 +37.5
Reverse Isolation (dB)
OIP3 (dBm)
+37.0 +36.5 +36.0 +35.5 +35.0 820 825 830 835 840 845 850 855
+85 oC +25 oC -40 oC
Frequency (GHz)
Frequency (MHz)
Figure 16. Reverse Isolation vs Frequency Over Temperature (PIN = -20 dBm)
Figure 17. OIP3 vs Frequency Over Temperature (PIN = -18 dBm/Tone, 5 MHz Tone Spacing)
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DATA SHEET * SKY65048-360LF LOW NOISE AMPLIFIER
8 7 6
20
1 -40 oC 1 +25 oC 1 +85 oC
19 18 17 16 15 14 13 12 11 10 -20
824 MHz +25 oC 836 MHz +25 oC 849 MHz +25 oC 824 MHz +85 oC 836 MHz +85 oC 849 MHz +85 oC 824 MHz -40 oC 836 MHz -40 oC 849 MHz -40 oC
1, 2
5 4 3 2 1 0 0 2 4 6 8 10 12 14
16
18
Gain (dB)
2 -40 oC 2 +25 oC 2 +85 oC
-15
-10
-5
0
+5
Frequency (GHz)
Input Power (dBm)
Figure 18. Stability vs Frequency Over Temperature (PIN = -20 dBm)
Figure 19. Gain vs Input Power Over Temperature and Frequency
+40 +38 +36
OIP3 (dBm)
+34 +32 +30 +28 +26 -20 -18 -16 -14 -12 -10 -8 -6 -4
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
Input Power/Tone (dBm)
Figure 20. OIP3 vs Input Power Over Temperature and Frequency (Tone Spacing = 5 MHz)
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DATA SHEET * SKY65048-360LF LOW NOISE AMPLIFIER
Typical Performance Characteristics
(TOP = +25 C, Characteristic Impedance [ZO] = 50 , VDD = 5 V, IDD = 85 mA, Parameters Include a Recommended 880-915 MHz Matching Network, Unless Otherwise Noted)
20 18 16 14 12 10 8 6 4 2 0 0.5
+85 oC +25 oC -40 oC
0 -2
Output Return Loss (dB)
Small Signal Gain (dB)
-4 -6 -8 -10 -12 -14 -16 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
+85 oC +25 oC -40 oC
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 21. Small Signal Gain vs Frequency Over Temperature (PIN = -20 dBm)
Figure 22. Output Return Loss vs Frequency Over Temperature PIN = -20 dBm
0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
+85 oC +25 oC -40 oC
1.4 1.2
+85 oC +25 oC -40 oC
Input Return Loss (dB)
Noise Figure (dB)
1.0 0.8 0.6 0.4 0.2 0 0.70 0.75 0.80 0.85 0.90 0.95 1.00
Frequency (GHz)
Frequency (GHz)
Figure 23. Input Return Loss vs Frequency Over Temperature (PIN = -20 dBm)
Figure 24. Noise Figure vs Frequency Over Temperature
0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
+85 oC +25 oC -40 oC
36.0 35.8 35.6 35.4 35.2 35.0 34.8 34.6 34.4 34.2 34.0 875
Reverse Isolation (dB)
OIP3 (dBm)
+85 oC +25 oC -40 oC
880
885
890
895
900
905
910
915
920
Frequency (GHz)
Frequency (MHz)
Figure 25. Reverse Isolation vs Frequency Over Temperature (PIN = -20 dBm)
Figure 26. OIP3 vs Frequency Over Temperature (PIN = -18 dBm/Tone, 5 MHz Tone Spacing)
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DATA SHEET * SKY65048-360LF LOW NOISE AMPLIFIER
8 7 6 1 -40 oC 1 +25 oC 1 +85 oC 2 -40 oC 2 +25 oC 2 +85 oC
20 19 18 17 16 15 14 13 12 11
0 2 4 6 8 10 12 14 16 18
900 MHz +25 oC 880 MHz +25 oC 915 MHz +25 oC 900 MHz +85 oC 880 MHz +85 oC 915 MHz +85 oC 900 MHz -40 oC 880 MHz -40 oC 915 MHz -40 oC
1, 2
5 4 3 2 1 0
Gain (dB)
10 -20
-15
-10
-5
0
+5
Frequency (GHz)
Input Power (dBm)
Figure 27. Stability vs Frequency Over Temperature (PIN = -20 dBm)
Figure 28. Gain vs Input Power Over Temperature and Frequency
24
+40
22
Small Signal Gain (dB)
+38 +36
20 18 16 14 12
10 50 100 200 500 Removed
OIP3 (dBm)
+34 +32 +30 +28 +26 -20 -18
880 MHz +25 oC 880 MHz +85 oC 880 MHz -40 oC 900 MHz +25 oC 900 MHz +85 oC 900 MHz -40 oC 915 MHz +25 oC 915 MHz +85 oC 915 MHz -40 oC
-16
-14
-12
-10
-8
-6
10 0.70
0.75
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
Input Power/Tone (dBm)
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
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.
Board material is 10 mil thick VT47 FR4 with 1 oz. copper cladding. RF input and output traces are 50 . 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.
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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. THE SKY65048-360LF is rated to Moisture Sensitivity Level 1 (MSL1) at 260 C. It can be used for lead or lead-free soldering.
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.
S1513
Figure 31. SKY65048-360LF Evaluation Board Assembly Diagram
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DATA SHEET * SKY65048-360LF LOW NOISE AMPLIFIER
C4
R1
C5
R2
1 C3 2
BIAS1
BIAS2
8 C9
C1 RF Input C14 L1 C2
L2
C16 RF Output
RFIN
RFOUT/VDD2 7
C7 C8 L4 C15
x
3
N/C
N/C
6
x
C6 R3
4
VDD1
FEEDBACK 5
C18 L3
C11
L5
R5
C10 C17 R4
C13
C12 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.
C19
S1804
Figure 32. SKY65048-360LF Evaluation Board Schematic
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DATA SHEET * SKY65048-360LF LOW NOISE AMPLIFIER
Table 5. SKY65048-360LF (QFN Package) Evaluation Board Bill of Materials (777 to 798 MHz)
Component C1 C2 C3, C8, C13, C14, C19 C4 C5 C6 C7 C9 C10 C11 C12 C15 C16 C17 C18 L1 L2 L3 L4 L5 R1 R2 R3 R4 R5 5 pF 0.5 pF DNP 4700 pF 1000 pF 0.5 pF 3.9 pF 30 pF 15 pF 1 pF 1000 pF 1.8 pF 1.5 nH 10 pF 1000 pF 11 nH 1.9 nH 3 k 8.2 nH 15 nH 12 9.1 10 5.1 7.5 Value SMT 0402 SMT 0402 - SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 Size Murata Murata - Murata Murata Murata Murata Murata Murata Murata Murata Murata Taiyo Yuden Murata Murata Coilcraft Coilcraft Panasonic Taiyo Yuden Taiyo Yuden Panasonic Panasonic Panasonic Panasonic Panasonic Manufacturer GJM GJM - GRM GRM GJM GRM GRM GRM GRM GRM GRM - GRM GRM CS CS - - - - - - - - Part Series
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DATA SHEET * SKY65048-360LF LOW NOISE AMPLIFIER
Table 6. SKY65048-360LF (QFN Package) Evaluation Board Bill of Materials (824 to 849 MHz)
Component C1 C2 C3, C8, C13, C14, C19 C4 C5 C6 C7 C9 C10 C11 C12 C15 C16 C17 C18 L1 L2 L3 L4 L5 R1 R2 R3 R4 R5 5 pF 0.5 pF DNP 4700 pF 1000 pF 0.5 pF 2.7 pF 30 pF 15 pF 1 pF 1000 pF 1.8 pF 1.5 nH 10 pF 1000 pF 11 nH 1.9 nH 3 k 10 nH 15 nH 12 9.1 10 5.1 7.5 Value SMT 0402 SMT 0402 - SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 Size Murata Murata - Murata Murata Murata Murata Murata Murata Murata Murata Murata Taiyo Yuden Murata Murata Coilcraft Coilcraft Panasonic Taiyo Yuden Taiyo Yuden Panasonic Panasonic Panasonic Panasonic Panasonic Manufacturer GJM GJM - GRM GRM GJM GRM GRM GRM GRM GRM GRM - GRM GRM CS CS - - - - - - - - Part Series
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * 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 C2 C3, C8, C13, C14, C19 C4 C5 C6 C7 C9 C10 C11 C12 C15 C16 C17 C18 L1 L2 L3 L4 L5 R1 R2 R3 R4 R5 5 pF 0.2 pF DNP 1000 pF 1000 pF 0.5 pF 2.2 pF 30 pF 12 pF 1 pF 1000 pF 1.8 pF 1.5 nH 10 pF 1000 pF 11 nH 1.9 nH 3 k 5.6 nH 12 nH 12 9.1 10 5.1 7.5 Value SMT 0402 SMT 0402 - SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 SMT 0402 Size Murata Murata - Murata Murata Murata Murata Murata Murata Murata Murata Murata Taiyo Yuden Murata Murata Coilcraft Coilcraft Panasonic Taiyo Yuden Taiyo Yuden Panasonic Panasonic Panasonic Panasonic Panasonic Manufacturer GJM GJM - GRM GRM GJM GRM GRM GRM GRM GRM GRM HK GRM GRM HP HP - HK HK - - - - - Part Series
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * 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
R0.20 Pin 1
8X 0.45
8X 0.25
0.50 Pitch 2X 0.85 0.25
2X 0.45
All dimensions are in millimeters
Exposed Solder Areas (Typical)
S1413
Figure 33. SKY65048-360LF PCB Layout Footprint
Pin 1 Indicator Skyworks Part #
Figure 34. Typical Case Markings
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
16 November 12, 2009 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 201101D
S48
DATA SHEET * SKY65048-360LF LOW NOISE AMPLIFIER
C 2 A B 0.20 Ref Seating Plane 0.02 +0.03/-0.02
0.90 +0.10/-0.15 0.45 +0.05/-0.07 Exposed Pad Detail A -B8X 3 0.08 C Detail B 2 Places Detail C
Pin 1 Indicator
2 2X 0.15 C
1.70 +0.10/-0.15 0.85 +0.05/-0.07
2X
0.15 C
0.90 0.10 0.10 C
Top View
R0.12 Typ
Side View
Bottom View
0.30 0.10 -A0.25 +0.05/-0.07 5
0.10 M C A B 0.05 M C
0.25
C L
0.5
R0.20
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 * sales@skyworksinc.com * 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 Pin #1 4.00 0.10 4.00 0.10 2.00 0.05 1.75 0.10
0.30 0.01 (T)
B
3.50 0.05
2.60 0.10 (Bo)
A
A
B 1.20 0.10 (Ko) 2.60 0.10 (Ao)
1.00 Min.
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.
S1480
Figure 36. SKY65048-360LF Tape and Reel Dimensions
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
18 November 12, 2009 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 201101D
8.00 +0.30/-0.10
R0.30 Max
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)
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Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
201101D * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * November 12, 2009 19

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