EK-S76GXB Evaluation Board

The S76G is designed & manufactured in a smallest form factor -SiP (System in Package). It integrates with SEMTECH SX1276 and a 32-bit ultra-low power Cortex M0+ MCU (STM32L073x), S76G supports global 863MHz or 928MHz ISM-Bands. Capable of 2-way communication and reach over 16 km (10 miles) distance in our field test. Besides, S76G 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.

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 SX1276
。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 S76G:
1. 24MHz crystal for STM32L073Z and 32MHz crystal for SX1276

2. 16Mbits Flash for CXD5603GF

3. Level shifter for communication between STM32L073Z and CXD5603GF

4. LoRa FEM/matching circuit and GNSS FEM/matching circuit

Embedded memories (up to 192 Kbytes of Flash memory and 20 Kbytes of RAM)
1. 32.768KHz crystal for STM32L073Z

2. 26MHz TCXO for CXD5603GF

3. Please see section 2-4 and 2-5 for more details

Epoxy molding finished module in LGA type

Small size: 13mm X 11mm X 1.55 mm