Synaptics SYN4383 and SYN43756(E) Tri-Band SoCs are Designed for IoT Devices, Automotive, and Industrial Applications

Synaptics has finally revealed the SYN4383 and the SYN43756(E) high-performance, compact tri-band SoCs, that integrate Wi-Fi, Bluetooth, and IEEE 802.15.4 radios to optimize wireless connectivity for IoT devices. Both chips support Wi-Fi 6/6E with 2×2 MIMO antenna configurations, delivering up to 1200 Mbps throughput and enabling simultaneous 2.4 GHz and 5/6 GHz band operation for robust, real-time streaming and connectivity.

They are arranged for smart homes, automotive in-cabin entertainment, security, personal tracking, and industrial IoT applications. These SoCs feature advanced Bluetooth (5.3 in SYN43756(E) and 5.4 in SYN4383) with LE Audio for multiple audio streams and Bluetooth Channel Sounding for precise positioning, making them ideal for audio-centric and location-sensitive applications. Additionally, SYN4383 supports IEEE 802.15.4 for Zigbee and Thread protocols and is Matter-compliant for secure, interoperable connectivity in diverse wireless environments. Both chips include Smart Co-Ex technology, ensuring the effective coexistence of Wi-Fi and Bluetooth in the 2.4 GHz band, while reducing space, cost, power, and system complexity.

Previously, we have covered some SoCs for IoT devices including the Renesas RZ/G3S, the Moushik, the ExpressIf’s ESP32-C61, and many more. Feel free to check those out, if you are interested in this topic.

Synaptics SYN4383 & SYN43756(E) SoCs for IoT devices Specifications:

• Wireless Connectivity
  • Wi-Fi:
    • IEEE 802.11ax (Wi-Fi 6/6E) compliant
    • Legacy support for 802.11a/b/g/n
    • 2×2 MIMO antenna array
    • Real Simultaneous Dual-Band (RSDB) operation: 2.4 GHz + 5 GHz or 6 GHz
    • Up to 1200 Mbps throughput
  • Bluetooth:
    • SYN4383 – Bluetooth 5.4 (LE Audio, Bluetooth Channel Sounding)
    • SYN43756(E) – Bluetooth 5.3 with LE Audio
    • Supports multiple concurrent Bluetooth audio streams
    • Dedicated Bluetooth antenna with internal PA
  • IEEE 802.15.4 support (SYN4383 only):
    • Thread and Zigbee protocols
    • Application-layer support for Matter-compliant for secure interoperability
• Features
  • Smart Co-Ex technology for advanced Wi-Fi and Bluetooth coexistence in the 2.4 GHz band
  • LE Audio for high-quality Bluetooth audio streaming
  • Supports Bluetooth Channel Sounding for precise positioning (SYN4383 only)
  • High transmit power and receive sensitivity (integrated PAs and LNAs)
  • 1024-QAM modulation support (SYN43756(E))
•  Power
  • Integrated power amplifiers (PAs) and low-noise amplifiers (LNAs) deliver high transmit (Tx) power and exceptional receive (Rx) sensitivity (for SYN4383)
  • The internal Bluetooth PA offers two output power modes: Normal Mode at 14 dBm and High Power Mode at 20 dBm. (for SYN43756(E))
  • Low-power consumption for IoT and embedded applications

The SYN4383 builds upon the capabilities of its predecessor, the SYN4382 SoC. Support is also provided for Synaptics Astra, an AI-native compute platform customized for IoT applications. This platform makes Edge AI development easier, helping create smart devices that improve user experiences in homes, cars, businesses, and industries.

Synaptics Veros SYN4383 Wi-Fi 6E, Bluetooth 5.4, 802.15.4 SoCs features and highlights:

• Tri-Band 2×2 MIMO Wi-Fi 6E (802.11ax):
  • Up to 1200 Mbps throughput.
  • Real Simultaneous Dual-Band (RSDB) operation with 2.4 GHz and either 5 GHz or 6 GHz.
  • Backward compatibility with legacy Wi-Fi standards, including 802.11a/b/g/n/ac.
• Bluetooth 5.4:
  • Compatible with Bluetooth 6.0.
  • Includes LE Audio for advanced audio streaming.
  • Supports Channel Sounding for precise positioning.
• 802.15.4 Radio:
  • Provides support for Thread and Zigbee protocols.
• complemented by an integrated T/R switch for optimized performance

The SYN43756(E) shares similarities with the SYN4383 but does not include an 802.15.4 radio or RSDB support. While it targets the same applications, it is not ideal for position tracking due to the absence of Channel Sounding. Designed as a cost-effective option, it suits applications that do not require an 802.15.4 radio, Wi-Fi RSDB, or the most advanced Bluetooth features.

Synaptics SYN43756(E) tri-band Wi-Fi and Bluetooth combo SoC features and highlights:

• Tri-Band 2×2 MIMO Wi-Fi 6E (802.11ax):
  • Supports up to 1200 Mbps throughput.
  • Backward compatibility with legacy Wi-Fi standards, including 802.11a/b/g/n/ac.
• Bluetooth 5.3:
  • Compatible with Bluetooth 6.0.
  • Includes LE Audio for enhanced audio streaming.
  • Does not support Channel Sounding.
• Advanced Wi-Fi/Bluetooth Coexistence:
  • Ensures seamless operation in shared frequency bands.

Both SYN4383 and SYN43756(E) chipsets are currently available for purchase, providing advanced wireless connectivity solutions for various applications. The respective product pages can be visited or the official press release can be referred to for additional information, including detailed specifications and features.

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