X-NUCLEO-GNSS1A1 STMicroelectronics

X-NUCLEO-GNSS1A1 Data brief GNSS expansion board based on Teseo-LIV3F module for STM32 Nucleo Features Operating supply voltage: 3.3 - 5 V Ambient temperature: -40/+85 C Sensitivity: -162 dBm indoor (tracking mode) Interfaces: a UART port an IC port Configurable digital I/O timepulse EXTINT input for wakeup NMEA protocol Assisted GNSS: Predictive autonomous Predictive server-based Real-time server-based Compatible with STM32 Nucleo boards Compatible with the Arduino UNO R3 connector LNA and SAW filter on the RF path SMA female antenna connector Battery holder RoHS and WEEE compliant Product summary Description GNSS expansion The X-NUCLEO-GNSS1A1 expansion board is based on the Teseo-LIV3F tiny GNSS board based on X-NUCLEO- module. Teseo-LIV3F GNSS1A1 module for It represents an affordable, easy-to-use, global navigation satellite system (GNSS) STM32 Nucleo module, embedding a TeseoIII single die standalone positioning receiver IC, usable Tiny GNSS in different configurations in your STM32 Nucleo project. Teseo-LIV3F module The Teseo-LIV3F is a compact (9.7x10.1 mm) module that provides superior Global navigation accuracy thanks to the on-board 26 MHz temperature compensated crystal oscillator satellite system (TCXO) and a reduced time-to-first fix (TTFF) with its dedicated 32 KHz real-time software X-CUBE-GNSS1 clock (RTC) oscillator. expansion for STM32Cube The Teseo-LIV3F module runs the GNSS firmware (X-CUBE-GNSS1) to perform all GNSS operations including acquisition, tracking, navigation and data output without external memory support. The X-NUCLEO-GNSS1A1 expansion board is compatible with the Arduino UNO R3 connector and the ST morpho connector, so it can be plugged to the STM32 Nucleo development board and stacked with additional STM32 Nucleo expansion boards. DB3458 - Rev 2 - October 2018 www.st.com For further information contact your local STMicroelectronics sales office.X-NUCLEO-GNSS1A1 Schematic diagram 1 Schematic diagram Figure 1. X-NUCLEO-GNSS1A1 circuit schematic (1 of 3) U8 IOREF 5 Vcc UART TX 2 4 TX A Y TX C22 3 1 C13100nF SMD0402 1F GND OE GNSS Module R33 SMD0402 R34 10K SN74LV1T126 RESETn GND C14100pF SMD0402 SMD0603 size SC70 2K1 GND JR14 SMD0603 U1Teseo-LIV3F (SPGNSS-LIV3F) SHUNT 2.54 mm. C23 GND 4.7F GND 10 9 RESETn GND RF RESETn Closed J14 RF IN 11 8 1 2 RF IN +VCC IO GND RF IN VCC 1 2 HEADER1x2 JR15 R1 12 7 SHUNT 2.54 mm. IOREF +VCC IO GND RF VCC IO Closed J15 C10 200k NM C11 SMD0402 AntOFF 13 6 1 2 AntOFF 1F SMD0603 1F +VBatt AntOFF Vbatt 1 2 HEADER1x2 SMD0402 VCC RF 14 5 WAKEUP VCC RF U4 VCC RF Wake-Up GND GND 3 7 IOREF Vant 15 4 PPS Vant PPS VccA VccB Reserved1 1PPS I2C SDA 5 8 I2C DATA I2C DATA A1 B1 I2C SCL I2C CLOCK I2C SDA UART RX 4 1 16 3 I2C CLOCK A2 B2 SDA2 RX 2 6 GND OE I2C SCL 17 2 UART TX SCL2 TX R2 TXS0102 RESETn GND TP1 18 1 VSSOP Reserved2 GND 2K1 C12 SMD0603 SMD0402 4.7F GND GND GND SMD0603 R30200k +VCC IO C15 C16 SMD0402 U5 1F 1F SMD0402 +VCC IO TXB0101DCK GND 1 6 IOREF GND VccA VccB 2 5 GND OE RESETn 3 4 SYS RESETn R8 SYS RESETn Battery A B 330R +VCC IO +VBatt C17 SMD0603 D1 GND SMD0402 R9 10nF +VCC IO GND 1k5 D2 BAT20J NM SMD0603 R10 SMD0603 330R SMD0603 VL1 SMD0603 R31 R320R SMD0603 RESETn BATTERY HOLDER (CR2032) R11 Q1 1 PPS D3 R1 200k NM MUN2214T1G 0R SMD0603 R2 +VCC IO SMD0603 GND C18 C19 SMD0402 U6 SMD0402 1F 1F TXB0101DCK GND 1 6 IOREF GND VccA VccB GND 2 5 GND OE GND WAKEUP 3 4 SYS WAKEUP SYS WAKEUP A B C20 GND SMD0402 10nF NM +VCC IO GND C21 SMD0402 1F U7 C24 TXB0101DCK 1F SMD0402 1 6 GND VccA VccB GND 2 5 GND OE UART RX 3 4 RX RX A B GND DB3458 - Rev 2 page 2/5 Red LED 2 3 Green LED