SKY65902-21

PRELIMINARY DATA SHEET SKY65902-21: Low-Noise Amplifier Front-End Module with GPS/GNSS Pre- and Post-Filters Applications • GPS/GNSS radio receivers Features • Small signal gain: 12 dB typical @ GNSS band • IIP3: +2 dBm • Low Noise Figure: 2 dB Figure 1. SKY65902-21 Block Diagram • Low current consumption • Input/output impedance internally matched to 50 Ω • Single DC supply: 1.8 to 3.6 V • Minimal number of external components required • Small, MCM (12-pin, 3.2 x 2.5 mm) package (MSL3, 250 °C per JEDEC J-STD-020) Description The SKY65902-21 is a Front-End Module (FEM) with an integrated Low Noise Amplifier (LNA), and pre- and post-filters designed for Global Positioning System/Global Navigation Satellite System (GPS/GNSS) receiver applications. The device provides high linearity, excellent gain, and a superior Noise Figure (NF). The SKY65902-21 is available with both differential and singleended outputs. The LNA is fabricated using advanced GaAs pHEMT technology. The GPS pre-filter provides the low in-band insertion loss and excellent rejections for the cellular, PCS, and WLAN frequency bands. The SKY65902-21 uses Surface Mount Technology (SMT) in the form of a 3.2 x 2.5 mm Multi-Chip Module (MCM) package, which allows for a highly manufacturable and low-cost solution. 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. Figure 2. SKY65902-21 Pinout – 12-Pin MCM (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201524B • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • August 23, 2011 1 PRELIMINARY DATA SHEET • SKY65902-21 LOW-NOISE AMPLIFIER FEM WITH GPS/GNSS POST-FILTER Table 1. SKY65902-21 Signal Descriptions Pin # Name Description Pin # Positive RF output, 100 Ω 7 Name Description 1 RF_OUT_P GND Ground 2 RF_OUT_N Negative RF output, 100 Ω 8 GND Ground 3 GND Ground 9 RF_IN RF input 4 GND Ground 10 GND Ground 5 VCTL LNA enable/bias 11 VDD Source voltage 6 GND Ground 12 GND Ground Table 2. SKY65902-21 Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units RF input power PIN 15 dBm Supply voltage VDD 1.8 3.6 V Storage temperature TSTG –65 +125 °C Junction temperature TJ +150 °C Note: 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 SKY65902-21 ESD threshold level is 2000 VDC at the RF_IN pin using Human Body Model (HBM) testing. Table 3. SKY65902-21 Recommended Operating Conditions Parameter Symbol Frequency range f RF input power PIN Supply voltage (measured at terminals of Evaluation Board) VDD Control voltage: Enable (high) Disable (low) VCTL Case operating temperature TC Minimum Typical Units 1606 MHz 1565 1575 –85 –85 1.80 2.85 2.85 3.60 V 1.3 0 1.8 1.8 VDD 0.3 V V +85 °C –30 1601.8 Maximum dBm Technical Description Electrical and Mechanical Specifications LNA Enable The absolute maximum ratings of the SKY65902-21 are provided in Table 2. The recommended operating conditions are specified in Table 3 and electrical specifications are provided in Table 4. The VCTL signal (pin 5) enables or disables the LNA. A logic high signal powers on the LNA and a logic low signal powers off the device. An external series resistor can be used on this pin to adjust the LNA bias current. Performance characteristics for the SKY65902-21 are illustrated in Figures 3 through 6. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 2 August 23, 2011 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201524B PRELIMINARY DATA SHEET • SKY65902-21 LOW-NOISE AMPLIFIER FEM WITH GPS/GNSS POST-FILTER Table 4. SKY65902-21 Electrical Specifications (Note 1) (VDD = 2.85 V, VCTL = 1.8 V, TC= +25 °C, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical (1575 MHz) Typical (1601.8 MHz) Max Units Small signal gain G 12.9 12.0 dB Noise Figure NF 2.0 2.5 dB Third Order Input Intercept Point (in band) IIP3 f1 = 1575 MHz and f2 = 1576 MHz @ PIN = –30 dBm +2 +2 dBm Input jammer @ 787.76 MHz @ +15 dBm, measured at 1575.52 MHz –60 –60 dBm Cellular band rejection @ 824.6 MHz +70 +70 dBc DCS band rejection @ 1712.7 MHz +70 +70 dBc PCS band rejection @ 1800 MHz +60 +60 dBc WLAN rejection @ 2400 MHz +65 +65 dBc 700 MHz harmonic Reverse isolation |S12| 20 20 dB Input return loss |S11| 10 10 dB Output return loss |S22| 10 10 dB Current consumption IDD Shut down current ISHUTDOWN Power gain settling time 5 5 mA 0.5 0.5 μA 5 5 μs Note 1: Performance is guaranteed only under the conditions listed in this Table. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201524B • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • August 23, 2011 3 PRELIMINARY DATA SHEET • SKY65902-21 LOW-NOISE AMPLIFIER FEM WITH GPS/GNSS POST-FILTER Typical Performance Characteristics (VDD = 2.85 V, TC= +25 °C, VCTL = 1.8 V, Unless Otherwise Noted) *** TBD *** *** TBD *** Figure 3. Input Return Loss vs Frequency Figure 4. Output Return Loss vs Frequency *** TBD *** *** TBD *** Figure 5. Reverse Isolation vs Frequency Figure 6. Small Signal Gain vs Frequency Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 4 August 23, 2011 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201524B PRELIMINARY DATA SHEET • SKY65902-21 LOW-NOISE AMPLIFIER FEM WITH GPS/GNSS POST-FILTER Evaluation Board Description Package and Handling Information The SKY65902-21 Evaluation Board is used to test the performance of the SKY65902-21 LNA. An assembly drawing for the Evaluation Board is shown in Figure 7. The Evaluation Board schematic diagram is shown in Figure 8. Table 5 provides the Bill of Materials (BOM) list for Evaluation Board components. 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. Package Dimensions The PCB layout footprint for the SKY65902-21 is provided in Figure 9. Package dimensions for the 12-pin MCM are shown in Figure 10, and tape and reel dimensions are provided in Figure 11. THE SKY65902-21 is rated to Moisture Sensitivity Level 3 (MSL3) at 250 °C. It can be used for lead or lead-free soldering. For additional information, refer to the Skyworks Application Note, PCB Design & SMT Assembly/Rework Guidelines for MCM-L Packages, document number 101752. 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. Figure 7. SKY65902-21 Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201524B • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • August 23, 2011 5 PRELIMINARY DATA SHEET • SKY65902-21 LOW-NOISE AMPLIFIER FEM WITH GPS/GNSS POST-FILTER Figure 8. SKY65902-21 Evaluation Board Schematic Table 5. SKY65902-21 Evaluation Board Bill of Materials Component Size Value C1 0402 0.1 μF C2 0402 1000 pF C3 0402 100 pF L1 0402 20 nH R1 0402 0Ω R2 0402 0Ω Vendor Part Number Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 6 August 23, 2011 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201524B PRELIMINARY DATA SHEET • SKY65902-21 LOW-NOISE AMPLIFIER FEM WITH GPS/GNSS POST-FILTER Figure 9. PCB Layout Footprint for the SKY65902-21 3.2 x 2.5 mm MCM Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201524B • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • August 23, 2011 7 PRELIMINARY DATA SHEET • SKY65902-21 LOW-NOISE AMPLIFIER FEM WITH GPS/GNSS POST-FILTER Figure 10. SKY65902-21 12-Pin MCM Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 8 August 23, 2011 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201524B PRELIMINARY DATA SHEET • SKY65902-21 LOW-NOISE AMPLIFIER FEM WITH GPS/GNSS POST-FILTER *** TBD *** Figure 11. SKY65902-21 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201524B • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • August 23, 2011 9 PRELIMINARY DATA SHEET • SKY65902-21 LOW-NOISE AMPLIFIER FEM WITH GPS/GNSS POST-FILTER Ordering Information Model Name SKY65902-21 Low-Noise Amplifier FEM with GPS/GNSS Pre- and Post-Filters Manufacturing Part Number SKY65902-21 Evaluation Board Part Number TW19-D330-V1 Copyright © 2011 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 • sales@skyworksinc.com • www.skyworksinc.com 10 August 23, 2011 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201524B