Geehy GW3323 Series Low-power Bluetooth MCU with an Operating Frequency of up to 160MHz for Bluetooth Walkie-talkie‘s Multi-device

PublishTime： 2023-05-11 Article Source：Geehy Semiconductor News

Geehy GW3323 Wireless Bluetooth Walkie-Talkie Solution

The wireless Bluetooth walkie-talkie adopts a low-power Bluetooth MCU with RF transceiver module architecture to optimize and upgrade the traditional walkie-talkie. In addition to ultra-long-distance communication, several new features have been added, including multi-device wireless connection, GPS positioning sharing, and key-free operation.

The GW3323 series low-power dual-mode Bluetooth 5.2 MCUs based on the high-performance RISC-V core. Boasting high sensitivity and frequency, and multiple peripherals, these MCUs can fully cater to the Bluetooth walkie-talkie's multi-device connection demand. Furthermore, the device can synchronize with Bluetooth headsets and mobile phones, allowing for real-time communication and data sharing.

High-performance MCU Serves as the System Core

With an operating frequency of up to 160MHz, the GW3323 Bluetooth 5.2 MCU boasts 1MB of built-in Flash memory, 256KB large-capacity SRAM, and a built-in DSP instruction set that can handle a large number of algorithm operations. This capability allows it to fully cater to any user's function development needs.

SPP and BLE Dual-mode Protocols Guarantee Efficient Transmission

The MCU supports A2DP, HFP, SPP, and other protocols. In particular, SPP can connect to mobile phones, enabling parameter setting and positioning data sharing, A2DP is mainly utilized to realize audio real-time intercom function. In Bluetooth 5.2 TX mode, the maximum power of the built-in PA can reach +9dBm, while the receiving sensitivity is -94dBm (2Mbit/s EDR) in RX mode. This functionality allows for more stable data transmission over longer distances, making it a reliable option for communication needs.

High-level Integration Simplifies Application Development

The MCU supports AAC and mSBC high-quality decoding and internally integrates the ENC algorithm, which is perfect for audio streaming device applications, significantly improving the call quality of the walkie-talkie. The MCU also includes a power management unit, Charger/Buck/LDO, which can deliver a charging current of up to 0.2A without the need for an external charging IC, resulting in lower costs and improved product reliability.

Despite being based on traditional technologies, products empowered by high-performance MCUs have been upgraded in convenience, stability, and multi-device collaboration that is comparable to new technology-based products, making them essential in numerous scenarios.

Besides audio streaming devices, the GW3323 series MCU can be widely used in data transmission, location services, and device networks, making it an incredibly versatile solution.

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