DATA SHEET SKY65094-360LF: 698-915 MHz Low-Noise Power Amplifier Driver Applications • 2.5G, 3G, 4G wireless infrastructure transceivers • ISM band transmitters • WCS fixed wireless • 3GPP LTE Features • Wideband frequency range: 698 to 915 MHz • Low Noise Figure: 3.2 dB • High IIP3 up to +29 dBm • Output P1dB = +25 dBm • High gain: +17 dB • Single DC supply: +5 V • Enable voltage: +3.3 V • On-chip bias circuit • DFN (8-pin, 2 x 2 mm) package (MSL1, 260 °C per JEDEC J-STD-020) Figure 1. SKY65094-360LF Functional Block Diagram Description Skyworks SKY65094-360LF is a high performance, ultrawideband Power Amplifier (PA) driver with superior output power, low noise, and linearity. The device provides excellent Noise Figure (NF) and high output power at 1 dB compression, which makes the SKY65094-360LF ideal for use in the driver stage of infrastructure transmit or receive chains. The SKY65094-360LF uses low-cost Surface-Mount Technology (SMT) in the form of an 8-pin, 2 x 2 mm Dual Flat No-Lead (DFN) package. A functional block diagram is provided in Figure 1, and the device package and pinout are shown in Figure 2. Figure 2. SKY65094-360LF Pinout – 8-Pin DFN Package (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201861A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 18, 2012 1 DATA SHEET • SKY65094-360LF PA DRIVER Table 1. SKY65094-360LF Signal Descriptions Pin # Name Description 1 GND Ground 2 RF_IN RF input 3 N/U Not used (may be grounded) 4 N/U Not used (may be grounded) 5 N/U Not used (may be grounded) 6 ENABLE PA enable 7 RF_OUT/BIAS RF output/bias voltage 8 N/U Not used (may be grounded) Table 2. SKY65094-360LF Absolute Maximum Ratings Parameter Symbol Min Max –0.3 Units Supply voltage VCC +6.0 V RF input power PIN +20 dBm Supply current (@ P1dB ICC 400 mA Power dissipation (@ P1dB PD 1.1 W Power dissipation (@ PIN = –10 dBm) PD 0.7 W Operating case temperature TC 0 +95 °C Extended operating temperature TEXT –33 +95 °C Storage temperature TST –55 +150 °C Junction temperature TJ Thermal resistance ΘJC Note: +150 °C 35 °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 values. 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. Technical Description Electrical and Mechanical Specifications The SKY65094-360LF is a single stage, low-noise PA that operates with a single 5 V power supply connected through an RF choke (inductor L1) to the output signal (pin 7). The bias current is set by the on-chip active bias composed of current mirror and reference voltage transistors, which allow excellent gain tracking over temperature and voltage variations. The device is externally RF matched using surface mount components to facilitate operation over a frequency range of 824 to 849 MHz. Signal pin assignments and functional pin descriptions are described in Table 1. The absolute maximum ratings of the SKY65094-360LF are provided in Table 2. The recommended operating conditions are specified in Table 3 and electrical specifications are provided in Table 4 (general specifications), Table 5 (698-716 MHz), Table 6 (777-798 MHz), Table 7 (824849 MHz), and Table 8 (880-915 MHz). Typical performance characteristics of the SKY65094-360LF for the 824 to 849 MHz frequency range are illustrated in Figures 3 through 10. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 May 18, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201861A DATA SHEET • SKY65094-360LF PA DRIVER Table 3. SKY65094-360LF Recommended Operating Conditions Parameter Symbol Bias voltage VCC Enable voltage VEN Operating frequency f Min Typical Max Units 4.75 5.00 5.25 V 3.3 V 698 915 MHz Table 4. SKY65094-360LF Electrical Characteristics: General (Note 1) Parameter Quiescent current Symbol IcQ Test Conditions Min No RF Gain vs temperature Typical Max Units 130 145 mA +0.01 dB/°C –0.01 0.1 dB Output Compression Point OP0.1dB Sweep input power Turn-on time Pin = –10 dBm, Ven = 3.3 V Stability PIN = 0 dBm, over all operating temperatures +19 dBm 1 μs Unconditional – Table 5. SKY65094-360LF Electrical Characteristics: 698 to 716 MHz (Note 1) (VCC = +5 V, TC = 25 °C, CW, Unless Otherwise Noted) Parameter Symbol Test Conditions Frequency f Third order input intercept point IIP3 PIN = –10 dBm/tone, 5 MHz spacing Small signal gain |S21| Input return loss |S11| Output return loss |S22| Noise Figure NF 1 dB Output Compression Point OP1dB Min Typical 698 Max 716 Units MHz +26.5 dBm PIN = –30 dBm 16.5 dB PIN = –30 dBm 21 dB PIN = –30 dBm 6.8 dB 3.3 dB +22.7 dBm Sweep input power Note 1: Performance is verified by characterization. Evaluation Board input trace loss up to DC blocking capacitor = 0.06 dB. Output trace loss up to DC blocking capacitor = 0.07 dB. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201861A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 18, 2012 3 DATA SHEET • SKY65094-360LF PA DRIVER Table 6. SKY65094-360LF Electrical Characteristics: 777 to 798 MHz (Note 1) (VCC = +5 V, TC = 25 °C, CW, Unless Otherwise Noted) Parameter Symbol Test Conditions Frequency f Third order input intercept point IIP3 PIN = –10 dBm/tone, 5 MHz spacing Small signal gain |S21| Input return loss Output return loss Noise Figure NF 1 dB Output Compression Point OP1dB Min Typical 777 Max Units 798 MHz +28.8 dBm PIN = –30 dBm 17.0 dB |S11| PIN = –30 dBm 21.5 dB |S22| PIN = –30 dBm 10 dB 3.0 dB +23.2 dBm Sweep input power Note 1: Performance is verified by characterization. Evaluation Board input trace loss up to DC blocking capacitor = 0.08 dB. Output trace loss up to DC blocking capacitor = 0.10 dB. Table 7. SKY65094-360LF Electrical Characteristics: 824 to 849 MHz, Tested to Production Screen Limits (Note 1) (VCC = +5 V, VEN = 3.3 V, TC = 25 °C, CW, Unless Otherwise Noted) Parameter Symbol Test Conditions Min Frequency f Third order Input Intercept Point IIP3 PIN = –10 dBm/tone, 5 MHz spacing Small signal gain |S21| PIN = –30 dBm Input return loss |S11| PIN = –30 dBm Output return loss |S22| PIN = –30 dBm 10 Noise Figure NF 1 dB Output Compression Point OP1dB Typical 824 Gain vs frequency Units 849 MHz +27.5 +29.5 16 17 18 dB –0.25 +0.12 +0.25 dB/20 MHz 15 23 +24.5 dBm dB 15 3.2 Sweep input power Max dB 4.0 +25.5 dB dBm Note 1: Performance is guaranteed only under the conditions listed in this Table, and corresponds to the Bill of Materials in Table 8 for this frequency band. Evaluation Board input trace loss up to DC blocking capacitor = 0.09 dB. Output trace loss up to DC blocking capacitor = 0.10 dB. Table 8. SKY65094-360LF Electrical Characteristics: 880 to 915 MHz (Note 1) (VCC = +5 V, TC = 25 °C, CW, Unless Otherwise Noted) Parameter Symbol Test Conditions Min Typical Units 915 MHz Frequency f Third order input intercept point IIP3 PIN = –10 dBm/tone, 5 MHz spacing +30 dBm Small signal gain |S21| PIN = –30 dBm 16.8 dB Input return loss |S11| PIN = –30 dBm 20 dB Output return loss |S22| PIN = –30 dBm 14 dB Noise Figure NF 1 dB Output Compression Point OP1dB 880 Max Sweep input power 3.0 dB +25.5 dBm Note 1: Performance is verified by characterization. Evaluation Board input trace loss up to DC blocking capacitor = 0.09 dB. Output trace loss up to DC blocking capacitor = 0.10 dB. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 May 18, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201861A DATA SHEET • SKY65094-360LF PA DRIVER Typical Performance Characteristics (824-849 MHz) (Based on BOM in Table 9) Figure 3. Input Return Loss vs Frequency Over Temperature Figure 4. Output Return Loss vs Frequency Over Temperature Figure 5. IIP3 vs Output Power Over Temperature Figure 6. Small Signal Gain vs Frequency Over Temperature Figure 7. IIP3 vs Frequency Over Temperature Figure 8. Current vs Output Power Over Temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201861A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 18, 2012 5 DATA SHEET • SKY65094-360LF PA DRIVER Figure 9. OP1dB vs Frequency Over Temperature Evaluation Board Description The Skyworks SKY65094-360LF Evaluation Board is used to test the performance of the SKY65094-360LF PA driver. An assembly drawing for the Evaluation Board is shown in Figure 11 and the layer detail is provided in Figure 12. The layer detail physical characteristics are noted in Figure 13. Capacitor C10 provides DC bias decoupling for the output stage collector voltage. Pins 2 and 7 are the RF input and output signals, respectively. External DC blocking is required on the input and output, but can be implemented as part of the RF matching circuit. Pin 1 (GND) and the center ground pad provide the DC and RF ground. Figure 10. Noise Figure vs Ferquency Over Temperature 1. Connect a 5.0 V supply to the VCC pin and 3.3 V to the ENABLE pin of the J3 header (see Evaluation Board assembly drawing in Figure 11 and schematic diagram in Figure 14). If available, enable the current limiting function of the power supply to 500 mA. 2. Connect a signal generator to the RF signal input port. Set it to the desired RF frequency at a power level of –15 dBm or less to the Evaluation Board but do NOT enable the RF signal. 3. Connect a spectrum analyzer to the RF signal output port. 4. Enable the power supply. 5. Enable the RF signal. 6. Take measurements. Circuit Design Configurations The following design considerations are general in nature and must be followed regardless of final use or configuration. 1. Paths to ground should be made as short as possible. 2. The ground pad of the SKY65094-360LF power amplifier has special electrical and thermal grounding requirements. This pad is the main thermal conduit for heat dissipation. Since the circuit board acts as the heat sink, it must shunt as much heat as possible from the amplifier. As such, design the connection to the ground pad to dissipate the maximum wattage produced to the circuit board. Multiple vias to the grounding layer are required. NOTE: Junction temperature (Tj) of the device increases with a poor connection to the slug and ground. This reduces the lifetime of the device. A suggested matching circuit is shown in Figure 14 with component values for the SKY65094-360LF Evaluation Board listed in Table 9. Testing Procedure Use the following procedure to set up the SKY65094-360LF Evaluation Board for testing: CAUTION: If any of the output signals exceed the rated maximum values, the SKY65094-360LF Evaluation Board can be permanently damaged. 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 SKY65094-360LF 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. Package Dimensions The PCB layout footprint for the SKY65094-360LF is shown in Figure 15. Typical case markings are shown in Figure 16. Package dimensions for the 8-pin DFN are shown in Figure 17, and tape and reel dimensions are provided in Figure 18. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 May 18, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201861A DATA SHEET • SKY65094-360LF PA DRIVER Figure 11. Evaluation Board Assembly Drawing Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201861A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 18, 2012 7 DATA SHEET • SKY65094-360LF PA DRIVER Layer 1: Top – Metal Layer 2: Ground Layer 3: Power Plane Layer 4: Solid Ground Plane S2497 Figure 12. Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 May 18, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201861A DATA SHEET • SKY65094-360LF PA DRIVER Figure 13. Layer Detail Physical Characteristics Figure 14. SKY65094-360LF Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201861A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 18, 2012 9 DATA SHEET • SKY65094-360LF PA DRIVER Table 9. SKY65094-360LF (DFN Package) Evaluation Board Bill of Materials (1 of 2) Component Size Value Vendor Vendor Part # C0 0402 33 pF Murata GRM1555C1H330JZ01 C1 0402 4.7 nH Murata LQG15HS4N7S02 C2 0402 7.5 pF Murata C3 0402 DNI – – C4 0402 DNI – – C5 0402 3.3 pF Murata GJM1555C1H3R3BB01B C6 0402 12 nH Murata LQG15HS12NJ02 698 MHz – 716 MHz GRM1555C1H7R5CB01 C9 1206 DNI – C10 0402 1 μF Murata GRM155R61A105KE15 C11 0402 33 pF Murata GRM1555C1H330JZ01 J1, J2 SMA Connector J3 Connector, 5-pin header L1 – 615R54-021 615R31-040 0402 18 nH Murata LQG15HS18NJ02 C0 0402 33 pF Murata GRM1555C1H330JZ01 C1 0402 4.3 nH Murata LQG15HS4N3S02 C2 0402 7 pF Murata GRM615COG070C50 C3 0402 DNI – – C4 0402 DNI – – C5 0402 4.7 pF Murata GJM1555C1H4R7BB01 C6 0402 12 nH Murata LQG15HS12NJ02 777 MHz – 798 MHz C9 1206 DNI – C10 0402 1 μF Murata C11 0402 33 pF Murata J1, J2 SMA Connector J3 Connector, 5-pin header L1 0402 18 nH – GRM155R61A105KE15 GRM1555C1H330JZ01 615R54-021 615R31-040 Murata LQG15HS18NJ02 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 May 18, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201861A DATA SHEET • SKY65094-360LF PA DRIVER Table 9. SKY65094-360LF (DFN Package) Evaluation Board Bill of Materials (2 of 2) Component Size Value Vendor Vendor Part # C0 0402 33 pF Murata GRM1555C1H330JZ01 C1 0402 5.1 nH Murata LQG15HS5N1S02 C2 0402 6 pF Murata C3 0402 DNI – – C4 0402 DNI – – C5 0402 8.2 pF Murata GJM1555C1H8R2CB01 C6 0402 12 nH Murata LQG15HS12NJ02 824 MHz – 849 MHz GJM1555C1H6R0BB01 C9 1206 DNI – C10 0402 1 μF Murata GRM155R61A105KE15 C11 0402 33 pF Murata GRM1555C1H330JZ01 J1, J2 SMA Connector J3 Connector, 5-pin header L1 – 615R54-021 615R31-040 0402 18 nH Murata LQG15HS18NJ02 C0 0402 33 pF Murata GRM1555C1H330JZ01 C1 0402 4.7 nH Murata LQG15HS4N7S02 C2 0402 5.6 pF Murata GJM1555C1H5R6CB01 C3 0402 DNI – – C4 0402 DNI – – C5 0402 8.2 pF Murata GJM1555C1H8R2CB01 C6 0402 10 nH Murata LQG15H10NJ02 880 MHz – 915 MHz C9 1206 DNI – C10 0402 1 μF Murata C11 0402 33 pF Murata J1, J2 SMA Connector J3 Connector, 5-pin header L1 0402 18 nH – GRM155R61A105KE15 GRM1555C1H330JZ01 615R54-021 615R31-040 Murata LQG15HS18NJ02 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201861A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 18, 2012 11 DATA SHEET • SKY65094-360LF PA DRIVER Figure 15. SKY65094-360LF PCB Layout Footprint Figure 16. Typical Case Markings (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 12 May 18, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201861A DATA SHEET • SKY65094-360LF PA DRIVER Figure 17. SKY65094-360LF (8-Pin DFN) Package Dimensions Figure 18. SKY65094-360LF Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201861A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 18, 2012 13 DATA SHEET • SKY65094-360LF PA DRIVER Ordering Information Model Name SKY65094-360LF Low-Noise PA Driver Ordering Part Number SKY65094-360LF Evaluation Board Part Number 698 to 716 MHz: TW18-D530-001 777 to 798 MHz: TW18-D530-011 824 to 849 MHz: TW18-D530-021 880 to 915 MHz: TW18-D530-031 Copyright © 2012 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. 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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 14 May 18, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201861A