Click here for production status of specific part numbers. Evaluates: MAX2771 MAX2771 Evaluation Kit General Description Quick Start The MAX2771 evaluation kit (EV kit) simplifies evaluation Required Equipment of the MAX2771, a next-generation Global Navigation This section lists the recommended test equipment to Satellite System (GNSS) receiver covering the L1, L2, L5, verify operation of the MAX2771. It is intended as a guide E1, E5, E6, B1, B2, and B3 bands, as well as the GPS, only and some substitutions are possible. GLONASS, Galileo, QZSS, IRNSS, and BeiDou navigation One RF signal generator capable of delivering satellite systems on a single chip. It enables testing of minimum -120dBm up to 3.0GHz (Keysight N5182B device performance and requires no additional support or equivalent) circuitry. Standard 50 SMA connectors are included on the EV kit for the inputs and outputs to allow for quick and An RF spectrum analyzer with a range of 100kHz to easy evaluation on the test bench. 3.0GHz (Keysight N9020A or equivalent) The MAX2771 EV kit contains a microcontroller (MCU) A power supply capable of up to 1A at +2.7V to +6V that translates between the three-wire SPI interface and One Digital multi-meter for measuring the supply USB to allow the user to configure internal registers and current (Keysight 34461A or equivalent) (optional) modes with Graphical User Interface (GUI) software 50 coaxial RF cable with SMA connectors running on a PC. The EV kit is fully assembled and tested at the factory. A network analyzer (e.g., HP 8753D or equivalent) to measure small-signal return loss (optional) This document provides a component list, a list of A dual power supply capable of delivering up to 1A equipment required to evaluate the device, a straightforward test procedure to verify functionality, a description of the at 5V EV kit circuit, the circuit schematic, and artwork for each A user-supplied Windows-based PC layer of the printed circuit board (PCB). Oscilloscope or logic analyzer to measure digital outputs(optional) Features Easy Evaluation of the MAX2771 IC +2.7V to +3.3V Single-Supply Operation 50 SMA Connectors on the RF and Baseband Input and Outputs Ordering Information appears at end of data sheet. All Critical Peripheral Components Included Micro-USB Port for Interfacing with PC 319-100239 Rev 0 8/18Evaluates: MAX2771 MAX2771 Evaluation Kit Procedure High-Band Connections This section provides a step-by-step guide to operating Set the RF signal generator to 1575.42MHz, -110dBm power. Do not turn on the generators the EV kit and testing the device functions. output. Connect the RF signal generator to the LNA Caution: Do not turn on the DC power or RF signal HI IN input (J4) using a coaxial RF cable with SMA generators until all connections are completed. connectors. The MAX2771 EV kit includes two on-board MAX8510 Connect LNA HI OUT SMA connector (J5) to the linear regulators for powering up the MAX2771 device to a MIX HI IN SMA connector (J6) on the EV kit using a regulated supply voltage of +2.85V. When using the linear short coaxial RF cable with SMA connectors. regulators, connect pins 1-2 of headers J15 and J16. The In the GUIs Streaming and Registers tab, write MAX2771 can also be powered directly through an external 0xBEA41603 to the register at address 0x0 and write power supply connected to pin 2 of these headers. Pin 1 of 0x00C00002 to the register at address 0x9. these 3-pin headers is marked with a dot on the silkscreen. Connect the output of the MAX4444 buffer, I OUT Download the MAX2771 EV Kit Software ANA (J10) on the EV kit to a spectrum analyzer Download the MAX2771 EV kit software from the using a coaxial RF cable with SMA connectors. Maxim Integrated website, run the installation file, In the GUIs Receiver, IF and AGC tab (make sure and install it. Auto Update is ON), Start running the GUI program. Select Filter type as bandpass filter. Powering the EV Kit Select Filter Order to 5th Order Butterworth option. Connect the PC to the on board MAX32625 PICO microcontroller module on the EV kit using the Select filter Bandwidth to 2.5MHz. provided USB cable. The GUI should indicate EV kit Select GAIN set from GAININ. connected in the status log. Select ADC Bypass mode in Output Driver Connect a DC supply set to +3V (through an Configuration. ammeter if desired) to headers J13 and ground Turn on the RF signal generator output and observe J14 on the EV kit. Do not turn on the supply. When the output in Signal analyzer at 4.092MHz. See using the on-board linear regulators to power the Figure 1 below. MAX2771, connect pins 1-2 of headers J15 and J16. Set the Driver Configuration to CMOS logic to Connect a DC supply set to +5V to header J28 on observe the ADC digital output at J26 header pins. the EV kit. Connect a DC supply set to -5V to header ADC Output Bit and Data format can be selected J29 on the EV kit. Do not turn on the supply. Connect accordingly from GUI. See Figure 2. the ground to J25. Make sure that headers J17 J24 are shorted for proper supply connection to the MAX2771. Turn on the power supplies, the digital multimeter should read around 20mA of current. Maxim Integrated 2 www.maximintegrated.com