Learn how to select the best Bluetooth audio module based on Bluetooth SIG and A2DP/AVRCP standards. Compare THD+N, latency, power consumption, range, and compatibility across BM200, BM520, and BM530 models to resolve distortion, lag, and dropouts in consumer, industrial, and automotive projects.
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SoC module
Ebyte SoC RF Module Selection Guide
Ebyte SoC (System-on-Chip) RF modules highly integrate the microcontroller (MCU), wireless radio unit, protocol stack, memory and peripheral interfaces into a single chip. Compared with discrete solutions, SoC modules significantly reduce system complexity, BOM cost and PCB size, while lowering power consumption.
Our SoC module portfolio covers Sub-1GHz and 2.4GHz frequency bands, supporting LoRa, BLE, ZigBee, Wi-SUN and proprietary protocols. They are ideal for battery-powered IoT end nodes, smart sensors, wearable devices and smart home products.
How to Select SoC module?
| Screening Dimension | Recommended Product Series |
|---|---|
| Transmission Distance | • Ultra-long range (>5km): E77 Series • Medium range (1–3km): E70, E51, E04, E72, E83 Series • Short range (<1km): E73, E75, BLE 6.0, E79 Series |
| Frequency Band | • Sub-1GHz (long range, strong penetration): E70, E77, E51, E04, E79 • 2.4GHz (global license-free, high data rate): E72, E73, E75, E83, BLE 6.0, E79 • Dual-band (Sub-1G + 2.4G): E79, E04 Series |
| Wireless Protocol | • LoRa spread spectrum: E77, E04 Series • Bluetooth LE: E72, E73, E83, BLE 6.0, E79 Series • ZigBee: E72, E75, E79, E83 Series • Wi-SUN: E51 Series • Proprietary RF: E70 Series |
| Power Consumption Level | • Battery-powered ultra-low power: E70, E73, BLE 6.0, E77 Series • Mains-powered high performance: E72, E83, E51 Series |
| Typical Application | • Smart metering / remote sensing: E77, E70, E51 Series • BLE consumer / wearables: E73, BLE 6.0 Series • Smart home / building automation: E75, E72 Series • High-end IoT gateway: E83, E79 Series |
Full Series Parameter Comparison Table
| Product Series | Chipset | Frequency Band | TX Power | Max LOS Range | Core Protocols | Key Features |
|---|---|---|---|---|---|---|
| E70 Series | TI CC1310 | Sub-1GHz (425–922MHz) | 14 dBm | 0.5 – 1.5 km | Proprietary RF, Wireless M-Bus | Ultra-low power, high integration, industrial grade |
| E72 Series | TI CC2630 / CC2652P | 2.4 GHz ISM | 5 – 23 dBm | 1.5 km | ZigBee, BLE, Thread | Multi-protocol, high power output, large memory |
| E73 Series | Nordic nRF52810/32/40 | 2.4 GHz ISM | 4 dBm | 100 – 500 m | Bluetooth LE 5.0/5.1/5.2 | Ultra-low power BLE, rich peripherals, cost-effective |
| E75 Series | NXP JN5168 / JN5169 | 2.4 GHz ISM | 10 / 20 dBm | 0.5 – 1 km | ZigBee | Dedicated ZigBee SoC, high stability, large flash |
| E77 Series | ST STM32WLE5CCU6 | 410–510MHz / 850–930MHz | 22 dBm | 5.6 km | LoRa, (G)FSK, BPSK | Single-chip MCU+LoRa, long range, low power |
| BLE 6.0 Series | nRF54L15 / EFR32BG24 | 2.4 GHz ISM | 8 – 10 dBm | 110 – 200 m | Bluetooth LE 6.0 | Latest BLE standard, premium audio, ultra-low power |
| E79 Series | TI CC1352 | Sub-1GHz + 2.4GHz Dual-band | 20 dBm | 170m (2.4G) / multi-km (Sub-1G) | Thread, ZigBee, BLE, Sub-1G | Dual-band multi-protocol, industrial IoT grade |
| E83 Series | Nordic nRF5340 | 2.4 GHz ISM | 3 dBm | 1.5 km | BLE 5.3, NFC, Thread, ZigBee | Dual-core high performance, advanced security |
| E04 Series | STM32WL33 / STM32WBA54 | Sub-1GHz + 2.4GHz | 10 – 20 dBm | 0.21 – 3.5 km | LoRa, BLE, (G)FSK | STM32WL platform, multi-modulation support |
| E51 Series | Silicon Labs EFR32FG25 | Sub-1GHz | 16 dBm | 2.5 km | Wi-SUN, ZigBee, BLE | Wi-SUN ready, high performance, large memory |
* Max LOS range is measured in open environment with matched antenna. Actual range depends on environment obstacles and interference.
5-Point Quick Selection Guide
- Choose frequency first by deployment scenario. Select Sub-1GHz series (E77, E70, E51) for outdoor long-range and wall-penetration use cases; choose 2.4GHz series (E73, E72, BLE 6.0) for global market compatibility and higher data rate requirements.
- Match your required wireless protocol stack. Pick dedicated SoC series for standard protocols: E77/E04 for LoRa, E73/BLE 6.0 for Bluetooth LE, E75/E72 for ZigBee, E51 for Wi-SUN smart grid applications.
- Evaluate power budget for power supply type. For battery-powered end nodes and portable devices, choose ultra-low power series like E70, E73 and E77; for gateway or mains-powered devices, select high-performance series such as E72, E83 and E51.
- Calculate the required transmission distance. Use E77 (5.6km) for kilometer-level long-distance transmission; use E72/E83 (1.5km) for medium-range networking; use E73/BLE 6.0 (100–200m) for short-range BLE proximity applications.
- Optimize for integration and BOM cost. All SoC modules integrate MCU and RF core on one chip, reducing PCB size and component count. Select the series with the best matching peripherals, memory size and package for your firmware design.
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