EK-S76GXB Evaluation Board

LoRa and GNSS Wireless Communication Module

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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.

# EU 863-870
# Modules
# US 902-928


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

Technical details

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

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