MAX2658AEVKIT+

EVALUATION KIT AVAILABLE MAX2657/MAX2658 GPS/GNSS Low-Noise Amplifiers General Description The MAX2657/MAX2658 high-gain, low-noise amplifiers (LNAs) are designed for GPS L1, Galileo, and GLONASS applications. Designed in Maxim's advanced SiGe process, the devices achieve a high gain and an ultra-lownoise figure while maximizing the input-referred 1dB compression point and the 3rd-order intercept point. The MAX2657/MAX2658 operate from a +1.6V to +3.3V single supply. The MAX2657 is optimized for low current. The MAX2658 is optimized for high linearity. The shutdown feature in the device reduces the supply current to be less than 1µA. The MAX2657/MAX2658 are available in a very small, lead-free, RoHS-compliant, 0.86mm x 1.26mm x 0.65mm, wafer-level package (WLP). Applications ●● ●● ●● ●● ●● ●● ●● ●● Features ●● High-Power Gain: 19dB (MAX2657) ●● Ultra-Low-Noise Figure: 0.8dB ●● Integrated 50Ω Output Matching Circuit ●● Low Supply Current: 4.1mA (MAX2657) ●● Wide Supply Voltage Range: 1.6V to 3.3V ●● Low Bill of Materials: One Inductor, Two Capacitors ●● Small Footprint: 0.86mm x 1.26mm ●● Thin Profile: 0.65mm ●● 0.4mm-Pitch Wafer-Level Package (WLP) Ordering Information Location-Enabled Mobile Devices Telematics (Asset Tracking and Management) Personal Navigation Devices (PNDs) Cellular Phones with GPS Notebook PCs/Ultra-Mobile PCs Recreational, Marine Navigation Avionics Watches PART TEMP RANGE PIN-PACKAGE MAX2657EWT+T -40°C to +85°C 6 WLP MAX2658EWT+T -40°C to +85°C 6 WLP +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. Pin Configuration/Typical Application Circuit + MAX2657 MAX2658 A1 SHDN A2 RFOUT RF OUTPUT BIAS VCC RF INPUT C1 L1 RFIN B1 B2 VCC C2 GND C1 L1 = 6.2nH (MAX2657) C1 = 820pF (MAX2657) C2 = 33nF 19-4956; Rev 1; 4/14 C2 GND L1 = 2.7nH (MAX2658) C1 = 1500pF (MAX2658) MAX2657/MAX2658 GPS/GNSS Low-Noise Amplifiers Absolute Maximum Ratings VCC to GND..........................................................-0.3V to +3.6V Other Pins to GND................ -0.3V to (+ Operating VCC + 0.3V) Maximum RF Input Power ...............................................+5dBm Continuous Power Dissipation (TA = +70°C) 6-Bump WLP (derates 10.5mW/°C above +70°C).......840mW Maximum Current into RF Input..........................................10mA Operating Temperature Range............................ -40°C to +85°C Junction Temperature.......................................................+150°C Storage Temperature Range............................. -65°C to +160°C Lead Temperature (soldering, 10s)..........Reflow Profile (Note 1) Note 1: Refer to Application Note 1891: Wafer-Level Packaging (WLP) and Its Applications. 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. DC Electrical Characteristics (MAX2657/MAX2658 EV kit. VCC = 1.6V to 3.3V, 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 2) PARAMETER CONDITIONS Supply Voltage Supply Current SHDN = high MIN TYP MAX UNITS 1.6 2.85 3.3 V MAX2657 4.1 MAX2658 7.7 mA Shutdown mode, SHDN = low 1 Digital Input Logic-High 1.2 µA V Digital Input Logic-Low Digital Input Current 0.45 V 1 µA AC Electrical Characteristics (MAX2657/MAX2658 EV kit. VCC = 1.6V to 3.3V, TA = -40°C to +85°C, fRFIN = 1575.42MHz. Typical values are at VCC = 2.85V and TA = +25°C, unless otherwise noted.) (Note 2) PARAMETER RF Frequency CONDITIONS VCC = 2.85V Power Gain VCC = 1.6V Noise Figure In-Band 3rd-Order Input Intercept Point (Note 3) Out-of-Band 3rd-Order Input Intercept Point (Note 4) www.maximintegrated.com MIN L1 band TYP MAX 1575.42 MAX2657 19.5 MAX2658 17.7 MAX2657 19.4 MAX2658 17.6 VCC = 1.8V 0.8 VCC = 3.3V 0.8 MAX2657 -3.5 MAX2658 +4.5 MAX2657 +2.5 MAX2658 +8 UNITS MHz dB dB dBm dBm Maxim Integrated │  2 MAX2657/MAX2658 GPS/GNSS Low-Noise Amplifiers AC Electrical Characteristics (continued) (MAX2657/MAX2658 EV kit. VCC = 1.6V to 3.3V, TA = -40°C to +85°C, fRFIN = 1575.42MHz. Typical values are at VCC = 2.85V and TA = +25°C, unless otherwise noted.) (Note 2) PARAMETER CONDITIONS Input 1dB Compression point (Note 5) MIN TYP MAX2657 -12.5 MAX2658 -10 MAX UNITS dBm Input Return Loss 10 dB Output Return Loss 15 dB Reverse Isolation 30 dB Note 2: Min and max limits guaranteed by test at TA = +85°C and guaranteed by design and characterization at TA = -40°C and TA = +25°C. Note 3: Measured with the two tones located at 1MHz and 2MHz offset from the center of the GPS band with -30dBm/tone for MAX2657 and -27dBm/tone for MAX2658. Note 4: Measured with input tones at 1713MHz (-25dBm) and 1851MHz (-49dBm). Note 5: Measured with a tone located at 5MHz offset from the center of the GPS band. Typical Operating Characteristics (MAX2657/MAX2658 EV kit. Typical values are at VCC = 2.85V, TA = +25°C, and fRFIN = 1575.42MHz, unless otherwise noted.) MAX2658 MAX2658 REVERSE ISOLATION vs. FREQUENCY MAX2658 -30 -15 -20 MAX2657 -25 |S12| (dB) 15 GAIN (dB) |S11| (dB) -10 10 5 1000 1500 2000 FREQUENCY (MHz) www.maximintegrated.com -50 MAX2657 -60 -5 500 -40 0 -30 -35 MAX2657 20 -20 MAX2657 toc03 -5 GAIN vs. FREQUENCY 25 MAX2657 toc02 INPUT RETURN LOSS vs. FREQUENCY MAX2657 toc01 0 2500 -10 500 1000 1500 2000 FREQUENCY (MHz) 2500 -70 500 1000 1500 2000 2500 FREQUENCY (MHz) Maxim Integrated │  3 MAX2657/MAX2658 GPS/GNSS Low-Noise Amplifiers Typical Operating Characteristics (continued) (MAX2657/MAX2658 EV kit. Typical values are at VCC = 2.85V, TA = +25°C, and fRFIN = 1575.42MHz, unless otherwise noted.) MAX2658 -15 -20 -2 MAX2657 toc06 -1 -10 8 6 IIP3 (dBm) MAX2657 IIP3 (dBm) |S22| (dB) -5 0 MAX2657 toc05 OUTPUT RETURN LOSS vs. FREQUENCY MAX2657 toc04 0 MAX2658 IN-BAND IIP3 vs. SUPPLY VOLTAGE AND TEMPERATURE (TWO TONES LOCATED AT 1MHz AND 2MHz OFFSET WITH -30dBm/TONE) MAX2657 IN-BAND IIP3 vs. SUPPLY VOLTAGE AND TEMPERATURE (TWO TONES LOCATED AT 1MHz AND 2MHz OFFSET WITH -35dBm/TONE) -40˚C -3 -40˚C 4 +25˚C +25˚C -4 2 +85˚C +85˚C 500 1000 1500 -5 2500 2000 1.6 1.8 FREQUENCY (MHz) 2.2 2.4 2.6 2.8 0 3.2 1.6 1.8 2.0 MAX2657 OUT-OF-BAND IIP3 vs. SUPPLY VOLTAGE AND TEMPERATURE (TONE 1 AT 1713MHz, -25dBm; TONE 2 AT 1851MHz, -49dBm) 10 2.6 2.8 3.0 3.2 MAX2658 OUT-OF-BAND IIP3 vs. SUPPLY VOLTAGE AND TEMPERATURE (TONE 1 AT 1713MHz, -25dBm; TONE 2 AT 1851MHz, -49dBm) 9 +85˚C IIP3 (dBm) +85˚C 2.4 8 +25˚C 1 2.2 SUPPLY VOLTAGE (V) 2 IIP3 (dBm) 3.0 SUPPLY VOLTAGE (V) MAX2657 toc07 3 2.0 MAX2657 toc08 -25 -40˚C 7 +25˚C 6 0 -1 -40˚C 5 1.6 1.8 2.0 2.2 2.4 2.6 2.8 SUPPLY VOLTAGE (V) www.maximintegrated.com 3.0 3.2 4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 SUPPLY VOLTAGE (V) Maxim Integrated │  4 MAX2657/MAX2658 GPS/GNSS Low-Noise Amplifiers Typical Operating Characteristics (continued) (MAX2657/MAX2658 EV kit. Typical values are at VCC = 2.85V, TA = +25°C, and fRFIN = 1575.42MHz, unless otherwise noted.) -13 +85˚C -14 +25˚C -15 -16 -40˚C -17 1.6 1.8 2.0 2.2 2.6 2.8 SUPPLY VOLTAGE (V) www.maximintegrated.com +85˚C -10 -11 -12 +25˚C -13 2.4 3.0 3.2 MAX2657 toc10 -9 INPUT P1dB (dBm) INPUT P1dB (dBm) -12 -18 MAX2658 INPUT P1dB COMPRESSION vs. SUPPLY VOLTAGE AND TEMPERATURE MAX2657 toc09 -11 MAX2657 INPUT P1dB COMPRESSION vs. SUPPLY VOLTAGE AND TEMPERATURE -14 -40˚C 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 SUPPLY VOLTAGE (V) Maxim Integrated │  5 MAX2657/MAX2658 GPS/GNSS Low-Noise Amplifiers Pin Description BUMP NAME A1 SHDN A2 RFOUT B1 RFIN RF Input. Requires a DC-blocking capacitor and external matching components. B2 VCC GND Supply Voltage. Bypass to ground with a 33nF capacitor as close as possible to the IC. C1, C2 FUNCTION Shutdown Input. A logic-low disables the device. RF Output. RFOUT is internally matched to 50Ω and incorporates an internal DC-blocking capacitor. Ground. Connect to the PCB ground plane. Detailed Description Shutdown The MAX2657/MAX2658 are LNAs designed for GPS L1, Galileo, and GLONASS applications. The devices feature a power-shutdown control mode to eliminate the need for an external supply switch. The devices achieve a high gain and an ultra-low-noise figure. Input and Output Matching The MAX2657/MAX2658 require an off-chip input matching. Only an inductor in series with a DC-blocking capacitor is needed to form the input matching circuit. The Typical Application Circuit shows the recommended input-matching network. These values are optimized for the best simultaneous gain, noise figure, and return loss performance. Tables 1 and 2 list typical device S parameters and Kf values. The MAX2657/MAX2658 integrate an on-chip output matching to 50Ω at the output, eliminating the need for external matching components. The value of the input coupling capacitor affects IIP3. A smaller coupling capacitor results in lower IIP3. The MAX2657/MAX2658 include a shutdown feature to turn off the entire chip. Apply a logic-high to the SHDN pin to place the part in the active mode, and a logic-low to place the part in the shutdown mode. Applications Information A properly designed 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. Table 1. MAX2657 Typical S-Parameter Values and K-Factor FREQ. (MHz) S11 MAG (dB) S11 PHASE (Degrees) S21 MAG (dB) S21 PHASE (Degrees) S12 MAG (dB) S12 PHASE (Degrees) S22 MAG (dB) S22 PHASE (Degrees) Kf 1000 -2.0 -47.7 6.0 -100.0 -47.5 -148.0 -1.0 -55.0 5.1 1100 -2.1 -48.6 7.4 -100.6 -45.7 -150.0 -1.0 -58.1 3.8 1200 -2.2 -51.6 9.6 -107.3 -42.9 -153.5 -1.4 -65.4 3.1 1300 -2.4 -55.0 12.0 -117.2 -39.6 -160.2 -2.1 -74.1 2.5 1400 -2.7 -58.6 14.0 -129.5 -37.0 -168.5 -3.6 -85.5 2.3 1500 -6.5 -61.9 16.2 -146.5 -34.1 178.5 -7.4 -100.0 2.8 1575 -4.3 -62.3 17.1 -164.2 -32.9 162.8 -15.3 -100.8 2.1 1600 -4.6 -61.6 17.3 -170.6 -32.8 156.6 -20.6 -78.9 2.0 1700 -5.4 -55.3 17.1 165.5 -32.5 136.5 -9.5 10.0 1.8 1800 -5.2 -49.8 15.7 145.8 -33.8 121.6 -4.5 -2.4 1.6 1900 -4.8 -47.3 13.9 135.2 -35.2 113.8 -2.7 -13.2 1.6 2000 -4.5 -46.7 12.7 127.3 -36.7 109.6 -1.8 -21.2 1.5 www.maximintegrated.com Maxim Integrated │  6 MAX2657/MAX2658 GPS/GNSS Low-Noise Amplifiers Table 2. MAX2658 Typical S-Parameter Values and K-Factor FREQ. (MHz) S11 MAG (dB) S11 PHASE (Degrees) S21 MAG (dB) S21 PHASE (Degrees) S12 MAG (dB) S12 PHASE (Degrees) S22 MAG (dB) S22 PHASE (Degrees) Kf 1000 -3.0 -57.0 10.8 -120.0 -43.0 -154.0 -1.3 -65.0 3.2 1100 -3.3 -58.2 11.6 -124.5 -42.1 -155.0 -1.6 -70.2 3.3 1200 -3.5 -60.0 13.4 -134.6 -39.3 -160.5 -2.4 -79.6 2.8 1300 -3.8 -62.3 14.9 -148.0 -37.2 -168.3 -4.0 -90.0 2.7 1400 -4.3 -63.3 15.9 -162.3 -35.4 -178.2 -7.3 -101.0 2.7 1500 -4.9 -62.0 16.6 -178.9 -33.9 171.0 -14.5 -100.6 2.6 1575 -5.3 -59.7 16.6 168.0 -33.5 161.7 -19.6 -26.0 2.5 1600 -5.4 -58.5 16.5 163.9 -33.6 157.5 -16.7 -6.0 2.5 1700 -5.5 -53.7 15.8 149.3 -33.6 148.3 -9.0 3.6 2.3 1800 -5.3 -50.3 14.7 136.8 -34.2 142.5 -5.7 -2.8 2.2 1900 -5.1 -48.0 13.4 130.0 -35.1 139.6 -4.0 -9.6 2.3 2000 -4.9 -46.3 12.7 123.9 -35.8 138.6 -3.0 -15.0 2.1 Table 3. MAX2657 Typical Noise Parameters (VCC = 2.85V, TA = +25°C) FREQUENCY (MHz) FMIN (dB) |GOPT| |GOPT| ANGLE RN (W) 1550 0.68 0.44 47.7 8.39 1560 0.68 0.44 48.1 8.38 1570 0.68 0.44 48.3 8.37 1575 0.68 0.44 48.5 8.36 1580 0.68 0.44 48.6 8.36 1590 0.68 0.44 48.9 8.35 1600 0.68 0.44 49.2 8.34 Table 4. MAX2658 Typical Noise Parameters (VCC = 2.85V, TA = +25°C) FREQUENCY (MHz) FMIN (dB) |GOPT| |GOPT| ANGLE RN (W) 1550 0.68 0.28 88.0 4.48 1560 0.68 0.28 88.4 4.48 1570 0.68 0.28 88.8 4.48 1575 0.68 0.28 89.0 4.48 1580 0.68 0.28 89.2 4.48 1590 0.69 0.28 89.6 4.47 1600 0.69 0.28 90.0 4.47 www.maximintegrated.com Maxim Integrated │  7 MAX2657/MAX2658 Chip Information PROCESS: SiGe BiCMOS www.maximintegrated.com GPS/GNSS Low-Noise Amplifiers 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 WLP W61B1+1 21-0217 90-0226 Maxim Integrated │  8 MAX2657/MAX2658 GPS/GNSS Low-Noise Amplifiers Revision History REVISION NUMBER REVISION DATE 0 9/09 Initial release — 1 4/14 Updated Applications 1 DESCRIPTION PAGES CHANGED 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. © 2014 Maxim Integrated Products, Inc. │  9