MAX2659ELT/V+TQ00

EVALUATION KIT AVAILABLE Click here to ask about the production status of specific part numbers. MAX2659 GPS/GNSS Low-Noise Amplifier General Description Benefits and Features 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. ● 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 Applications ● ● ● ● ● ● ● ● ● AEC-Q100 (MAX2659ELT/V+ Only) 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 ● ±2500V ESD HBM (Human Body Model) 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 10; 6/21 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 6 µDFN PACKAGE CODE L611+2 Outline Number 21-0147 Land Pattern Number 90-0084 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 MIN TYP MAX UNITS 1.6 2.85 3.6 V 4.1 5.6 SHDN = high Supply Current SHDN = high@105°C 6.2 Shutdown mode, SHDN = low (-40°C to 105°C) 1 µA Digital Input-Logic High (-40°C to 105°C) Digital Input-Logic Low (-40°C to 105°C) 0.4 V Digital Input Current (-40°C to 105°C) 1 µA RFIN DC Voltage SHDN = high ESD Protection HBM 1.1 mA JEDEC/HBM JESD22-A114 V 0.83 V ±2500 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 17 VCC = 2.85V@105°C 15 VCC = 1.6V@105°C MAX 1575.42 VCC = 2.85V VCC = 1.6V TYP 16.5 UNITS MHz 20.5 20.5 dB 14 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, unless otherwise specified. 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.) +25°C 3.9 3.8 -40°C 3.7 MAX2659 toc03 20.4 20.2 20.0 500 750 1000 1250 1500 1750 2000 2250 2500 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 RF FREQUENCY (MHz) SUPPLY VOLTAGE (V) NOISE FIGURE vs. TEMPERATURE NOISE FIGURE vs. SUPPLY VOLTAGE INPUT RETURN LOSS vs. RF FREQUENCY 0.8 0.6 0.4 0.8 0.6 0.4 -5 0.2 0.2 -20 -40 -30 0 -10 20 10 40 30 60 50 100 80 70 0 MAX2659 toc06 1.0 0 INPUT RETURN LOSS (dB) 1.2 NOISE FIGURE (dB) NOISE FIGURE (dB) +105°C 20.6 SUPPLY VOLTAGE (V) 1.0 0 +85°C 10 0 MAX2659 toc04 1.2 15 20.8 5 2.2 2.4 2.6 2.8 3.0 3.2 3.4 1.6 1.8 2.0 -40°C MAX2659 toc05 3.6 +25°C 20 GAIN vs. SUPPLY VOLTAGE 21.0 GAIN (dB) 4.0 GAIN (dB) SUPPLY CURRENT (mA) MAX2659 toc01 +105°C +85°C GAIN vs. RF FREQUENCY 25 MAX2659 toc02 SUPPLY CURRENT vs. SUPPLY VOLTAGE 4.1 -10 +105°C -15 +85°C -20 -30 -40°C -35 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 SUPPLY VOLTAGE (V) 90 +25°C -25 -40 500 750 1000 1250 1500 1750 2000 2250 2500 RF FREQUENCY (MHz) TEMPERATURE (°C) OUTPUT RETURN LOSS vs. RF FREQUENCY -10 -15 +85°C -20 +105°C +25°C -40°C -25 500 750 1000 1250 1500 1750 2000 2250 2500 RF FREQUENCY (MHz) www.maximintegrated.com MAX2659 toc08 -5 -30 REVERSE ISOLATION |S12| (dB) MAX2659 toc07 OUTPUT RETURN LOSS (dB) 0 REVERSE ISOLATION vs. RF FREQUENCY -35 -40 -50 -55 -60 -65 +25°C +85°C -40°C +105°C 500 750 1000 1250 1500 1750 2000 2250 2500 RF FREQUENCY (MHz) 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.) TWO TONES LOCATED AT 5MHz AND 10MHz OFFSET WITH -40dBm/TONE -4 -10.0 IIP3 (dBm) IIP3 (dBm) -5.2 -5.3 -5.4 -5 -6 -5.5 -7 -5.6 -5.7 -20 -40 -30 0 -10 20 10 40 30 60 50 70 -8 100 80 90 -10.2 -10.4 -10.6 -10.8 -11.0 -11.2 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 SUPPLY VOLTAGE (V) -20 0 -10 20 40 10 30 60 50 80 70 100 90 TEMPERATURE (°C) INPUT P1dB COMPRESSION vs. JAMMER FREQUENCY MAX2659 toc13 -5 NF vs. JAMMER POWER AT 850MHz 3.5 MAX2659 toc12 0 3.0 2.5 -10 NF (dB) P1dB COMPRESSION (dBm) -40 -30 TEMPERATURE (°C) -15 -20 2.0 1.5 1.0 -25 -30 MAX2659 toc11 -5.1 -3 INPUT P1dB COMPRESSION (dBm) TWO TONES LOCATED AT 5MHz AND 10MHz OFFSET WITH -30dBm/TONE MAX2659 toc09 -5.0 INPUT P1dB COMPRESSION vs. TEMPERATURE IIP3 vs. SUPPLY VOLTAGE MAX2659 toc10 IIP3 vs. TEMPERATURE 0.5 0 500 750 1000 1250 1500 1750 2000 2250 2500 -30 -25 -20 -15 -10 -5 JAMMER POWER (dBm) JAMMER FREQUENCY (MHz) NF vs. JAMMER POWER AT 1850MHz MAX2659 toc14 3.5 3.0 NF (dB) 2.5 2.0 1.5 1.0 0.5 0 -30 -25 -20 -15 -10 JAMMER POWER (dBm) www.maximintegrated.com 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 SHDN Supply Voltage. Bypass to ground with a 33nF capacitor as close as possible to the IC. 5 6 RFOUT RF Output. RFOUT is internally matched to 50Ω and incorporates an internal DC-blocking capacitor. Shutdown Input. A logic-low disables the device. Detailed Description 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. ed 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. Shutdown 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 need- 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. Table 1. Typical S11 Values Applications Information 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 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. The MAX2659 can be matched to several GPS/GNSS bands by adding additional external components. See Table 2 for matching values and Tables 3–5 for measured performance. Figures 1 and 2 show the placement of the additional components. Maxim Integrated │  6 MAX2659 GPS/GNSS Low-Noise Amplifier Table 2. Matching Values For GPS/GNSS Bands FREQUENCY (MHz) L1 (nH) C1 (pF) L2 (nH) C8 (pF) 1575.42 6.8 470 Short open L2 1227.6 7.5 470 10 3.3 GPS, QZSS L5, E5a, B2a 1176.45 8.7 470 11 3.3 GPS, Galileo, BeiDou, NAVIC, SBAS, QZSS L6, E6 1278.75 7.5 470 8.2 3.3 Galileo, QZSS BAND NAME L1, E1, B1C GND GND P1 RFIN C1 L1 6 1 RFIN MAX2659 2 5 3 4 µDFN CONSTELLATIONS (SYSTEMS) GPS, Galileo, BeiDou, SBAS, QZSS RFOUT P2 L2 RFOUT C4 39pF VCC GND JU2 C8 R2 0Ω SHDN R4 10K P3 SHDNB OPEN JU1 C5 0.033µF R1 0Ω C3 0.033µF C2 39pF C7 0.01µF 3.85V JU3 C6 10µF Figure 1. MAX2659 EV Kit Schematic Table 4. L5 Band Performance L2 C8 L5 BAND (1176.45MHz) PARAMETER VALUE (dB) Noise Figure 1.10 Gain 18.6 Input Return Loss 10.0 Output Return Loss 34.6 Table 5. L6 Band Performance L6 BAND (1278.75MHz) Figure 2. MAX2659 EV Kit Component Placement Table 3. L2 Band Performance L2 BAND (1227.6MHz) PARAMETER VALUE (dB) Noise Figure 1.10 Gain 18.6 Input Return Loss 9.7 Output Return Loss 21.2 www.maximintegrated.com PARAMETER VALUE (dB) Noise Figure 1.07 Gain 18.9 Input Return Loss 12.4 Output Return Loss 15.7 Maxim Integrated │  7 MAX2659 GPS/GNSS Low-Noise Amplifier Linearity Performance It is possible to improve the device’s IP3. Accomplish this by adding an inductor between pin 2 and ground. While this addition increases IP3, gain decreases and noise figure increases. Table 6. Linearity Performance (Tone 1 = 1713.42MHz at -17dBm, Tone 2 = 1851.42MHz at -59dBm) DEGENERATION INDUCTOR ICC (mA) GAIN (dB) NF (dB) IP1dB (dBm) IIP3 (dBm) 0.9nH 4.0 18.4 1.0 -7.0 6.2 None 4.1 20.5 0.8 -12 -0.5 Chip Information PROCESS: SiGe BiCMOS www.maximintegrated.com Maxim Integrated │  8 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 8 2/20 Updated Applications Information section, added Figures 1–3, and Tables 2–6 9 1/21 Updated Package Information section, DC and AC Electrical Characteristics table, and Typical Operating Characteristics. Removed repeated accounts of package information 10 6/21 Updated Benefits and Features section and DC Electrical Characteristics table DESCRIPTION 1 1, 2 6–8 2–5, 8 1, 3 For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html. 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. ©  2021 Maxim Integrated Products, Inc. │  9