EVALUATION KIT AVAILABLE MAX2657/MAX2658 GPS/GNSS Low-Noise Amplifiers General Description Features The MAX2657/MAX2658 high-gain, low-noise amplifiers High-Power Gain: 19dB (MAX2657) (LNAs) are designed for GPS L1, Galileo, and GLONASS Ultra-Low-Noise Figure: 0.8dB applications. Designed in Maxim s advanced SiGe pro- Integrated 50 Output Matching Circuit cess, the devices achieve a high gain and an ultra-low- noise figure while maximizing the input-referred 1dB Low Supply Current: 4.1mA (MAX2657) compression point and the 3rd-order intercept point. Wide Supply Voltage Range: 1.6V to 3.3V The MAX2657/MAX2658 operate from a +1.6V to +3.3V Low Bill of Materials: One Inductor, Two Capacitors single supply. The MAX2657 is optimized for low current. Small Footprint: 0.86mm x 1.26mm The MAX2658 is optimized for high linearity. The shut- Thin Profile: 0.65mm down feature in the device reduces the supply current to be less than 1A. The MAX2657/MAX2658 are available 0.4mm-Pitch Wafer-Level Package (WLP) in a very small, lead-free, RoHS-compliant, 0.86mm x 1.26mm x 0.65mm, wafer-level package (WLP). Applications Ordering Information Location-Enabled Mobile Devices PART TEMP RANGE PIN-PACKAGE Telematics (Asset Tracking and Management) MAX2657EWT+T -40C to +85C 6 WLP Personal Navigation Devices (PNDs) MAX2658EWT+T -40C to +85C 6 WLP Cellular Phones with GPS Notebook PCs/Ultra-Mobile PCs +Denotes a lead(Pb)-free/RoHS-compliant package. Recreational, Marine Navigation T = Tape and reel. Avionics Watches Pin Configuration/Typical Application Circuit + MAX2657 MAX2658 RFOUT RF A1 A2 SHDN OUTPUT BIAS VCC C1 L1 RF RFIN V CC B1 B2 INPUT C2 GND C1 C2 GND L1 = 6.2nH (MAX2657) L1 = 2.7nH (MAX2658) C1 = 820pF (MAX2657) C1 = 1500pF (MAX2658) C2 = 33nF 19-4956 Rev 1 4/14MAX2657/MAX2658 GPS/GNSS Low-Noise Amplifiers Absolute Maximum Ratings V to GND .........................................................-0.3V to +3.6V Maximum Current into RF Input .........................................10mA CC Other Pins to GND ...............-0.3V to (+ Operating V + 0.3V) Operating Temperature Range ........................... -40C to +85C CC Maximum RF Input Power ...............................................+5dBm Junction Temperature ......................................................+150C Continuous Power Dissipation (T = +70C) Storage Temperature Range ............................ -65C to +160C A 6-Bump WLP (derates 10.5mW/C above +70C) ......840mW 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. V = 1.6V to 3.3V, T = -40C to +85C, no RF signals are applied. Typical values are at V = 2.85V CC A CC and T = +25C, unless otherwise noted.) (Note 2) A PARAMETER CONDITIONS MIN TYP MAX UNITS Supply Voltage 1.6 2.85 3.3 V MAX2657 4.1 SHDN = high mA Supply Current MAX2658 7.7 Shutdown mode, SHDN = low 1 A Digital Input Logic-High 1.2 V Digital Input Logic-Low 0.45 V Digital Input Current 1 A AC Electrical Characteristics (MAX2657/MAX2658 EV kit. V = 1.6V to 3.3V, T = -40C to +85C, f = 1575.42MHz. Typical values are at V = 2.85V and CC A RFIN CC T = +25C, unless otherwise noted.) (Note 2) A PARAMETER CONDITIONS MIN TYP MAX UNITS RF Frequency L1 band 1575.42 MHz MAX2657 19.5 V = 2.85V CC MAX2658 17.7 Power Gain dB MAX2657 19.4 V = 1.6V CC MAX2658 17.6 V = 1.8V 0.8 CC Noise Figure dB V = 3.3V 0.8 CC MAX2657 -3.5 In-Band 3rd-Order Input Intercept (Note 3) dBm Point MAX2658 +4.5 MAX2657 +2.5 Out-of-Band 3rd-Order Input (Note 4) dBm Intercept Point MAX2658 +8 Maxim Integrated 2 www.maximintegrated.com