PRELIMINARY DATA SHEET SKY65052-372LF: 0.45-6.0 GHz Low Noise Transistor Applications • Wireless infrastructure: WLAN, WiMAX, broadband, cellular base stations • Test instrumentation • LNA for GPS receivers • Satellite receivers Figure 1. SKY65052-372LF Block Diagram The SKY65052-372LF is a high performance, n-channel lownoise transistor. The device is fabricated from Skyworks advanced depletion mode pHEMT process and is provided in a 2.20 x 1.35 x 1.10 mm, 4-pin SC-70 package. The transistor’s low Noise Figure (NF), high gain, and excellent 3rd Order Intercept Point (IP3) allow the device to be used in various receiver and transmitter applications. DRAIN 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. 1 2 4 3 SOURCE • Small, SC-70 (4-pin, 2.20 x 1.35 x 1.10 mm) Pb-free package (MSL3, 260 °C per JEDEC J-STD-020) Description SOURCE • Externally matched for wideband operation • Noise Figure = 0.6 dB @ 2.4 GHz of device only • Noise figure = 0.85 dB @ 2.4 GHz including matching network loss • Gain = 16 dB @ 2.4 GHz • OIP3 = +34 dBm @ 2.4 GHz • P1dB = +19 dBm @ 2.4 GHz • Adjustable supply current, 15 to 100 mA • Unconditionally stable to 18 GHz with reference design circuit GATE Features S1417 Figure 2. SKY65052-372LF Pinout – 4-Pin SC-70 (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201088A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • June 2, 2009 1 PRELIMINARY DATA SHEET • SKY65052-372LF LOW NOISE TRANSISTOR Table 1. SKY65052-372LF Signal Descriptions Pin # Name Description Pin # Name Description 1 SOURCE Source lead. Provides DC self-biasing point and AC ground. 3 SOURCE Source lead. Provides DC self-biasing point and AC ground. 2 DRAIN RF output. Supply voltage required through external RF choke. 4 GATE RF input Functional Description Electrical and Mechanical Specifications The SKY65052-372LF is a depletion mode pHEMT designed for low noise, high frequency applications. The SKY65052-372LF has a typical NF of 0.6 dB tested at the 2.4 GHz wireless LAN frequency band. A gain of 15.5 dB typical is achieved using the same circuit. If the frequency of operation is lowered to the 1 GHz range, NF performance of the device can approach 0.85 dB including input matching network losses. The absolute maximum ratings of the SKY65052-372LF 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 SKY65052-372LF are illustrated in Figures 3 through 7. Table 2. SKY65052-372LF Absolute Maximum Ratings Parameter Symbol Supply voltage VDD Input power Gate to source voltage Gate to drain voltage Minimum Typical Maximum Units 6 V PIN +15 dBm VGS –5.0 V VGD –5.0 V Drain to source current IDS 110 mA Gate to drain current IGD 100 μA Power dissipation PDIS 240 mW Junction temperature TJ Storage temperature TSTG –65 Operating temperature TOP –40 Thermal resistance ΘJC Note: °C 150 +125 +85 °C °C °C/W 220 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. Table 3. SKY65052-372LF Recommended Operating Conditions Parameter Symbol Minimum Typical Maximum Units 6.0 GHz Operating frequency f 0.45 Supply voltage VDD 2.00 5.00 5.25 V Supply current IDD 15 55 100 mA Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 June 2, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201088A PRELIMINARY DATA SHEET • SKY65052-372LF LOW NOISE TRANSISTOR Table 4. SKY65052-372LF Electrical Specifications (TOP = +25 °C, Characteristic Impedance [ZO] = 50 Ω, VDD = 5 V, IDD = 55 mA, Parameters Include Recommended Matching Networks, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units 80 100 120 mA –0.95 –0.80 –0.65 V 80 120 160 mS 1 200 μA Saturated drain current IDSS VDS = 6 V, VGS = 0 V Pinchoff voltage VP VDS = 6 V, IDS = 2.5% of IDSS Transconductance gM VDS = 6 V, gM = ΔIDS/ΔVGS, measured at IDS = 20% of IDSS Gate leakage current IGSS VGD = VGS = –3 V Noise Figure NF1 (Note 1) 0.60 dB NF2 (Note 2) 0.85 dB |S21| 16 dB Input return loss |S11| –15 dB Output return loss |S22| –9 dB Reverse isolation |S12| –25 dB Gain rd 3 Order Output Intercept Point OIP3 POUT = +5 dBm/tone, 1 MHz spacing +34 dBm 3rd Order Input Intercept Point IIP3 POUT = +5 dBm/tone, 1 MHz spacing +18 dBm 1 dB Output Compression Point OP1dB +19 dBm 1 dB Input Compression Point IP1dB +4 dBm >1 K Stability Unconditionally stable up to 18 GHz Note 1: NF of device only. Input RF connector, board, and input matching network loss de-embedded from measurement. Note 2: NF of device and matching network. Input RF connector and board loss de-embedded from measurement. Typical Performance Characteristics (TOP = +25 °C, Characteristic Impedance [ZO] = 50 Ω, VDD = 5 V, IDD = 55 mA, Includes Recommended 2.4 GHz Matching Network, Unless Otherwise Noted) 2.0 18 Input Return Loss (dB) Small Signal Gain (dB) 17 16 15 14 –2.0 –6.0 –10 –14 13 12 2000 2200 2400 2600 2800 3000 Frequency (MHz) Figure 3. Small Signal Gain vs Frequency Over Temperature (PIN = –20 dBm) –18 2000 2200 2400 2600 2800 3000 Frequency (MHz) Figure 4. Input Return Loss vs Frequency Over Temperature (PIN = –20 dBm) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201088A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • June 2, 2009 3 PRELIMINARY DATA SHEET • SKY65052-372LF LOW NOISE TRANSISTOR +2 –10.0 Output Return Loss (dB) Reverse Isolation (dB) 0 –20.0 –30 –40 –50 2000 –2 –6 –10 –14 –18 2200 2400 2600 2800 3000 Frequency (MHz) 2000 2200 2400 2600 2800 3000 Frequency (MHz) Figure 5. Reverse Isolation vs Frequency Over Temperature (PIN = –20 dBm) Figure 6. Output Return Loss vs Frequency Over Temperature (PIN = –20 dBm) 1.00 Noise Figure (dB) 0.95 0.90 0.85 0.80 0.75 0.70 1800 2000 2200 2400 2600 Frequency (MHz) Figure 7. Noise Figure vs Frequency, Input RF Connector and Board Trace De-Embedded From Measurement Evaluation Board Description The SKY65052-372LF Evaluation Board is used to test the performance of the SKY65052-372LF low noise transistor. An assembly drawing for the Evaluation Board is shown in Figure 8. The Evaluation Board schematic diagram is shown in Figure 9. Table 5 provides the Bill of Materials (BOM) list for Evaluation Board components. Circuit Design Considerations Input and output traces have been minimized to reduce losses. All surface mount components are 0402-sized to reduce component parasitics. 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. RF connector and board loss up to component C1 is approximately 0.1 dB at 2.4 GHz. Board material is 10 mil VT47 FR4 with 1 oz. copper cladding. The RF traces are 50 Ω. 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 55 mA. Step 4: Apply RF signal or noise source. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 June 2, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201088A PRELIMINARY DATA SHEET • SKY65052-372LF LOW NOISE TRANSISTOR S1511 Figure 8. SKY65052-372LF Evaluation Board Assembly Diagram C11 L5 RF Output C12 L6 L4 C1 L2 RF Input C2 C13 C3 L1 C6 C14 C4 L3 C5 R2 R1 C10 C7 C15 VDD S1509 Figure 9. SKY65052-372LF Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201088A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • June 2, 2009 5 PRELIMINARY DATA SHEET • SKY65052-372LF LOW NOISE TRANSISTOR Table 5. SKY65052-372LF Evaluation Board Bill of Materials Component Value Size Manufacturer/Part Series C1 33 pF 0402 Murata GRM015 C2 1.2 pF 0402 Murata GJM015 C3 0.3 pF 0402 Murata GJM015 C4, C5, C8, C9, C14 DNP C6 10000 pF 0402 Murata GRM015 C7 10000 pF 0402 Murata GRM015 C10 10000 pF 0402 Murata GRM015 C11 4.7 pF 0402 Murata GJM015 C12 0.3 pF 0402 Murata GJM015 C13 3.9 pF 0402 Murata GRM015 C15 1000 pF 0402 Murata GRM015 L1 12 nH 0402 Coilcraft HP L2 2 nH 0402 Coilcraft HP L3 DNP L4 5.6 nH 0402 Coilcraft HP L5 0Ω 0402 Panasonic L6 6.8 nH 0402 Taiyo Yuden HK R1 4.7 Ω 0402 Panasonic R2 7.5 Ω 0402 Panasonic Package Dimensions The PCB layout footprint for the SKY65052-372LF is shown in Figure 10. Typical case markings are shown in Figure 11. Package dimensions for the 4-pin SC-70 are shown in Figure 12, and tape and reel dimensions are provided in Figure 13. Package and Handling Information Since the device package is sensitive to moisture absorption, it is baked and vacuum packed before shipping. 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 SKY65052-372LF is rated to Moisture Sensitivity Level 3 (MSL3) 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. Electrostatic Discharge (ESD) Sensitivity The SKY65052-372LF is a static-sensitive electronic device. Do not operate or store near strong electrostatic fields. Take proper ESD precautions. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 June 2, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201088A PRELIMINARY DATA SHEET • SKY65052-372LF LOW NOISE TRANSISTOR Exposed Solder Areas (Hatched Areas) 0.650 Package Outline 4X 0.750 4X 0.450 3X 0.400 0.500 All dimensions are in millimeters 0.822 S1408 Figure 10. SKY65052-372LF PCB Layout Footprint ** TBD ** Figure 11. Typical Case Markings (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201088A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • June 2, 2009 7 PRELIMINARY DATA SHEET • SKY65052-372LF LOW NOISE TRANSISTOR 1.80/2.20 0.65 0.65 0.10/0.30 1.80/2.40 1.15/1.35 0.10/0.40 Pin 1 0.15/0.30 0.10/0.18 0.575/0.700 0.5 0.80/1.00 0.80/1.10 A Pin 1 0.00/0.10 0.10 A Dimensioning and tolerancing according to ASME Y14.5M-1994. All measurements are in millimeters S1409 Figure 12. SKY65052-372LF 4-Pin SC-70 Package Dimensions 4.00 0.25 ± 0.05 4.00 (See Note 1) 2.00 ± 0.05 (See Note 3) ϕ1.50 + 0.10/–0.0 ϕ1.00 Min. 1.75 ± 0.10 0.75 R0.20 Max 3.50 ± 0.05 (See Note 3) Bo 8.0 + 0.3/–0.1 A A Ao Ko R0.25 Typ. (0.55) A 0.70 Notes: 1. 10 sprocket hole pitch cumuilative tolerance ±0.2. 2. Camber in compliance with EIA 481. 3. Pocket position relative to sprocket hole measured as true position of pocket, not pocket hole. 4. Ao and Bo are calculated on a plane at a distance “R” above the bottom of the pocket. 5. Carrier tape: black conductive polycarbonate or polystyrene. 6. Cover tape material: transparent conductive PSA. 7. Cover tape size: 21.3mm width. 8. All measurements are in millimeters. Ao = 2.35 Bo = 2.55 Ko = 1.25 Figure 13. SKY65052-372LF Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 June 2, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201088A S1510 PRELIMINARY DATA SHEET • SKY65052-372LF LOW NOISE TRANSISTOR Ordering Information Model Name SKY65052-372LF Low Noise Transistor Manufacturing Part Number SKY65052-372LF (Pb-free package) Evaluation Kit Part Number *** TBD *** Copyright © 2009 Skyworks Solutions, Inc. 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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201088A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • June 2, 2009 9