MAX2659ELT+TG104

EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX2659 GPS/GNSS Low-Noise Amplifier General Description The MAX2659 high-gain, low-noise amplifier (LNA) is designed for GPS, Galileo, and GLONASS applications. Designed in Maxim’s advanced SiGe process, the device achieves a 20.5dB gain and an ultra-low-noise figure of 0.8dB while maximizing the input-referred 1dB compression point and the 3rd-order intercept point at -12dBm and -5dBm, respectively. The MAX2659 operates from a +1.6V to +3.6V single supply and consumes only 4.1mA. The shutdown feature in the device reduces the supply current to be less than 1μA. The MAX2659 is available in a very small, lead-free, RoHScompliant, 1.5mm x 1.0mm x 0.75mm, 6-pin μDFN package. Applications ●● ●● ●● ●● ●● ●● ●● ●● Automotive Navigation Location-Enabled Mobile Devices Telematics (Asset Tracking and Management) Personal Navigation Device (PND) Cellular Phones with GPS Notebook PC/Ultra-Mobile PC Recreational, Marine Navigation Avionics Benefits and Features ●● Improves System Performance • Ultra-Low 0.8dB Noise Figure • High-Power 20.5dB Gain • Wide 1.6V to 3.6V Supply Range ●● Lowers System Cost With Low Bill of Materials and Small Size • Integrated 50Ω Output Matching Circuit • Small 1.5mm x 1.0mm Footprint • Thin 0.75mm Profile ●● Reduces Power Consumption • Low 4.1mA Supply Current • Power-Shutdown Control Mode to Eliminate the Need for External Supply Switch ●● AEC-Q100 (MAX2659ELT/V+ Only) Ordering Information PART TEMP RANGE PIN-PACKAGE MAX2659ELT+ -40°C to +85°C 6 μDFN MAX2659ELT/V+ -40°C to +85°C 6 μDFN +Denotes lead(Pb)-free/RoHS-compliant package. /V denotes an automotive qualified part. Pin Configuration/Functional Diagram/Typical Application Circuit + GND GND MAX2659 1 6 2 5 RFOUT RF OUTPUT SHDN LOGIC CONTROL VCC RF INPUT RFIN C1 L1 3 BIAS VCC C2 L1 = 6.8nH C1 = 470pF C2 = 33nF 19-0797; Rev 7; 5/18 4 MAX2659 GPS/GNSS Low-Noise Amplifier Absolute Maximum Ratings VCC to GND..........................................................-0.3V to +4.2V Other Pins to GND Except RFIN...................... -0.3V to (+ Operating VCC + 0.3V) RFIN to GND..........................................................................+1V Maximum RF Input Power...............................................+10dBm Continuous Power Dissipation (TA = +70°C) 6-Pin μDFN (derates 2.1mW/°C above +70°C)............167mW Operating Temperature Range............................ -40°C to +85°C Junction Temperature.......................................................+150°C Storage Temperature Range............................. -65°C to +160°C Lead Temperature (soldering, 10s).................................. +260°C Soldering Temperature (reflow)........................................+260°C CAUTION! ESD SENSITIVE DEVICE Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Package Information uDFN-6 PACKAGE CODE T833+2 Outline Number 21-0147 Land Pattern Number 90-0084 Thermal Resistance, Single-Layer Board: Junction to Ambient (θJA) N/A Junction to Case (θJC) N/A Thermal Resistance, Four-Layer Board: Junction to Ambient (θJA) 477°C/W Junction to Case (θJC) 122°C/W For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. www.maximintegrated.com Maxim Integrated │  2 MAX2659 GPS/GNSS Low-Noise Amplifier DC Electrical Characteristics (MAX2659 EV kit; VCC = 1.6V to 3.6V, TA = -40°C to +85°C, no RF signals are applied. Typical values are at VCC = 2.85V and TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS Supply Voltage Supply Current MIN TYP MAX UNITS 1.6 2.85 3.6 V 4.1 5.6 mA 1 µA SHDN = high Shutdown mode, SHDN = low Digital Input-Logic High 1.1 V Digital Input-Logic Low Digital Input Current RFIN DC Voltage SHDN = high 0.4 V 1 µA 0.83 V AC Electrical Characteristics (MAX2659 EV kit; VCC = 1.6V to 3.6V, TA = -40°C to +85°C, fRFIN = 1575.42MHz. Typical values are at VCC = 2.85V and TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER RF Frequency Power Gain CONDITIONS MIN L1 band TYP MAX 1575.42 VCC = 2.85V 17 20.5 VCC = 1.6V 16.5 20.5 UNITS MHz dB Noise Figure (Note 2) 0.8 dB 3rd-Order Input Intercept Point (Note 3) -5 dBm Input 1dB Compression point (Note 4) -12 dBm Input Return Loss (Note 2) 10 15 dB Output Return Loss (Note 2) 10 25 dB Reverse Isolation (Note 2) 32 dB Note 1: Min and Max limits guaranteed by test at TA = +25°C and guaranteed by design and characterization at TA = -40°C and TA = +85°C. Note 2: Guaranteed by design and characterization. Note 3: Measured with the two tones located at 5MHz and 10MHz offset from the center of the GPS band with -40dBm/tone. Note 4: Measured with a tone located at 5MHz offset from the center of the GPS band. www.maximintegrated.com Maxim Integrated │  3 MAX2659 GPS/GNSS Low-Noise Amplifier Typical Operating Characteristics (MAX2659 EV kit; Typical values are at VCC = 2.85V, TA = +25°C, and fRFIN = 1575.42MHz, unless otherwise noted.) 4.3 20 20.8 +25°C 3.9 -40°C 10 5 0.6 0.4 0.2 0.8 0.6 0.4 0.2 -15 10 35 60 0 85 SUPPLY VOLTAGE (V) OUTPUT RETURN LOSS vs. RF FREQUENCY REVERSE ISOLATION vs. RF FREQUENCY -15 -20 -25 -30 -35 -40 500 750 1000 1250 1500 1750 2000 2250 2500 RF FREQUENCY (MHz) www.maximintegrated.com -30 -40 -50 -15 -20 -25 -3.5 -4.0 -70 -6.0 500 750 1000 1250 1500 1750 2000 2250 2500 IIP3 vs. TEMPERATURE TWO TONES LOCATED AT 5MHz AND 10MHz OFFSET WITH -40dBm/TONE -5.0 -5.5 RF FREQUENCY (MHz) 500 750 1000 1250 1500 1750 2000 2250 2500 -4.5 -60 -80 MAX2659 toc06 -10 RF FREQUENCY (MHz) IIP3 (dBm) -10 -20 -5 -30 MAX2659 toc08 MAX2659 toc07 -5 0 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 TEMPERATURE (°C) REVERSE ISOLATION |S12| (dB) -40 0 -45 NOISE FIGURE vs. SUPPLY VOLTAGE MAX2659 toc09 0.8 SUPPLY VOLTAGE (V) INPUT RETURN LOSS vs. RF FREQUENCY 1.0 NOISE FIGURE (dB) 1.0 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 RF FREQUENCY (MHz) INPUT RETURN LOSS |S11| (dB) MAX2659 toc04 1.2 20.0 500 750 1000 1250 1500 1750 2000 2250 2500 MAX2659 toc05 -10 2.2 2.4 2.6 2.8 3.0 3.2 3.4 NOISE FIGURE vs. TEMPERATURE 1.2 20.4 20.2 -5 1.6 1.8 2.0 20.6 0 3.7 0 GAIN (dB) GAIN (dB) 4.1 SUPPLY VOLTAGE (V) NOISE FIGURE (dB) GAIN vs. SUPPLY VOLTAGE 21.0 15 3.5 OUTPUT RETURN LOSS |S22| (dB) GAIN vs. RF FREQUENCY MAX2659 toc03 MAX2659 toc01 +85°C SUPPLY CURRENT (mA) 25 MAX2659 toc02 SUPPLY CURRENT vs. SUPPLY VOLTAGE 4.5 -6.5 -40 -15 10 35 60 85 TEMPERATURE (°C) Maxim Integrated │  4 MAX2659 GPS/GNSS Low-Noise Amplifier Typical Operating Characteristics (continued) (MAX2659 EV kit; Typical values are at VCC = 2.85V, TA = +25°C, and fRFIN = 1575.42MHz, unless otherwise noted.) -6 -7 MAX2659 toc11 -12 -13 -15 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 -40 35 60 INPUT P1dB COMPRESSION vs. TEMPERATURE INPUT P1dB COMPRESSION vs. JAMMER FREQUENCY -11 -12 -13 85 0 -14 -5 -10 -15 -20 -25 -40 -15 10 35 60 -30 85 500 750 1000 1250 1500 1750 2000 2250 2500 TEMPERATURE (°C) JAMMER FREQUENCY (MHz) MAX2659 toc14 3.5 3.0 3.0 2.5 2.0 2.0 NF (dB) 2.5 1.5 1.5 1.0 1.0 0.5 0.5 -30 -25 -20 -15 JAMMER POWER (dBm) www.maximintegrated.com -10 -5 NF vs. JAMMER POWER AT 1850MHz MAX2659 toc15 NF vs. JAMMER POWER AT 850MHz 3.5 NF (dB) 10 TEMPERATURE (°C) -10 0 -15 SUPPLY VOLTAGE (V) MAX2659 toc11 P1dB COMPRESSION (dBm) -11 -14 -9 -15 -10 MAX2659 toc13 -8 P1dB COMPRESSION (dBm) -5 -9 P1dB COMPRESSION (dBm) IIP3 (dBm) -4 TWO TONES LOCATED AT 5MHz AND 10MHz OFFSET WITH -40dBm/TONE MAX2659 toc10 -3 INPUT P1dB COMPRESSION vs. TEMPERATURE IIP3 vs. SUPPLY VOLTAGE 0 -30 -25 -20 -15 -10 JAMMER POWER (dBm) Maxim Integrated │  5 MAX2659 GPS/GNSS Low-Noise Amplifier Pin Description PIN NAME FUNCTION 1, 2 GND Ground. Connect to the PCB ground plane. 3 RFIN RF Input. Requires a DC-blocking capacitor and external matching components. 4 VCC Supply Voltage. Bypass to ground with a 33nF capacitor as close as possible to the IC. 5 SHDN Shutdown Input. A logic-low disables the device. 6 RFOUT RF Output. RFOUT is internally matched to 50Ω and incorporates an internal DC-blocking capacitor. Detailed Description Shutdown The MAX2659 is an LNA designed for GPS L1, GALILEO, and GLONASS applications. The device features a power-shutdown control mode to eliminate the need for an external supply switch. The device achieves a 20.5dB gain and an ultra-low-noise figure of 0.8dB. The MAX2659 consumes approximately 4.1mA while providing a IP1dB of -12dBm and an IIP3 of -5dBm. Input and Output Matching The MAX2659 requires an off-chip input matching. Only a 6.8nH inductor in series with a DC-blocking capacitor is needed to form the input matching circuit. The Typical Application Circuit diagram shows the recommended input-matching network. These values are optimized for the best simultaneous gain, noise figure, and return loss performance. Table 1 lists typical device S11 values. The MAX2659 integrates an on-chip output matching to 50Ω at the output, eliminating the need for external matching components. Applications Information A properly designed PC board (PCB) is essential to any RF microwave circuit. Use controlled-impedance lines on all high-frequency inputs and outputs. Bypass VCC with decoupling capacitors located close to the device. For long VCC lines, it may be necessary to add decoupling capacitors. Locate these additional capacitors further away from the device package. Proper grounding of the GND pins is essential. If the PCB uses a topside RF ground, connect it directly to the GND pins. For a board where the ground is not on the component layer, connect the GND pins to the board with multiple vias close to the package. Chip Information Table 1. Typical S11 Values FREQUENCY (MHz) REAL S11 IMAGINARY S11 1000 -0.58 -j0.52 1100 -0.68 -j0.356 1200 -0.74 -j0.16 1300 -0.74 j0.036 1400 -0.676 j0.22 1500 -0.56 j0.36 1575 -0.47 j0.415 1600 -0.44 j0.43 1700 -0.36 j0.467 1800 -0.3 j0.51 1900 -0.228 j0.567 2000 -0.14 j0.622 www.maximintegrated.com The MAX2659 includes a shutdown feature to turn off the entire chip. Apply a logic high to SHDN pin to place the part in the active mode and a logic low to place the part in the shutdown mode. PROCESS: SiGe BiCMOS Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. 6 μDFN L611+2 21-0147 90-0084 Maxim Integrated │  6 MAX2659 GPS/GNSS Low-Noise Amplifier Revision History REVISION NUMBER REVISION DATE PAGES CHANGED 0 4/07 Initial release — 1 5/08 Updated Digital Input-Logic High specification and added RFIN DC Voltage specification in DC Electrical Characteristics table 2 2 9/09 Added MAX2659ELT/V+ to Ordering Information 3 1/11 Updated maximum supply voltage specification to 3.6V 4 8/11 Updated Absolute Maximum Ratings to reflect correct RFIN voltage 2 5 5/15 Updated Benefits and Features section 1 6 9/17 Added AEC statement to Features section 1 7 5/18 Added Package Information section 2 DESCRIPTION 1 1, 2 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. ©  2018 Maxim Integrated Products, Inc. │  7