The S78G is designed & manufactured in a smallest form factor -SiP (System in Package). It integrates with SEMTECH SX1278 and a 32-bit ultra-low power Cortex M0+ MCU (STM32L073x), S78G supports global 433MHz or 470MHz ISM-Bands. Capable of 2-way communication and reach over 16 km (10 miles) distance in our field test. Besides, S78G contains a GPS chip –SONY CXD5603GF which is used to receive GPS/GPS+GLONASS signals for positioning.
This product is designed with multiple easy to use interfaces (I2C/SPI/UART/GPIO), fine-tuned RF performance and will be offered with complete SDK library & ready to go HDK, it can significantly help the users to shrink the size of end device and simplify the development efforts for any LoRa applications.
Key Feature
Platform Features
- ST micro controller: STM32L073Z
- High performance ARM Cortex-M0+ 32-bit RISC core operating at a 32MHz frequency
- 192 Kbytes of Flash memory
- 20 Kbytes of SRAM
- Serial wire debug (SWD) & JTAG
- USB 2.0 full-speed device/host
LORA Features
- LORA chip: Semtech SX1278
- LoRa Modem
- +20 dBm constant RF output vs. V supply
- Programmable bit rate up to 37500 bps
- High sensitivity: down to -137 dBm
- Excellent blocking immunity
- Preamble detection
- Automatic RF Sense and CAD with ultra-fast AFC
- Payload up to 128 bytes with CRC
GNSS Features
- GNSS chip: SONY CXD5603GF
- GPS/GLONASS receiver
- Ultra-low power consumption
- Supports SBAS/QZSS
Other Features
- Periphery components inside S78G:
- 24MHz crystal for STM32L073Z and 32MHz crystal for SX1278
- 16Mbits Flash for CXD5603GF
- Level shifter for communication between STM32L073Z and CXD5603GF
- LoRa FEM/matching circuit and GNSS FEM/matching circuit
- Embedded memories (up to 192 Kbytes of Flash memory and 20 Kbytes of RAM)
- 32.768KHz crystal for STM32L073Z
- 26MHz TCXO for CXD5603GF
- Epoxy molding finished module in LGA type
- Small size: 13 X 11 X 1.55 mm
