The proposed fully integrated digital-intensive system on chip (SoC) allows dual-mode protocols of Bluetooth low energy (BLE) 5.0 and IEEE802.15.4 with extended-range wireless connectivity and ad hoc mesh networks for Internet-of-Things (IoT) systems in wireless sensor networks. The SoC fully integrates a dc–dc converter, LDOs, a digitally controlled crystal oscillator (DCXO), a PHY, a microcontroller (MCU), a security engine, an SRAM, and an eFlash memory. A triple-supply configuration and low-voltage circuit design enable the SoC to be applied for a wide range of battery-powered systems energy-efficiently and to extend battery lifetime. The TRX employs a low insertion-loss on-die TRX switch with impedance matching circuits, a pseudodifferential current-mode class-D PA with HD2 calibration, a low-IF RX architecture with fast AGC algorithm and complex CT- $\Delta \Sigma $ ADCs, and a low-power all-digital phase-locked loop (ADPLL) with fast settling injection LDOs and an LMS-based two-point direct frequency modulation structure. The TRX implemented in a 28-nm CMOS process achieves an output power of +10 dBm with a calibrated HD2 of −63 dBc while consuming 45 mW and sensitivities of −98 dBm in 2-Mb/s BLE and −102 dBm in 256-kb/s IEEE802.15.4 at ${10}^{-3}$ BER while consuming 6 mW.

中文翻译：

---

数字密集型扩展范围双模 BLE5.0 和 IEEE802.15.4 收发器 SoC

所提议的完全集成的数字密集型片上系统 (SoC) 允许蓝牙低功耗 (BLE) 5.0 和 IEEE802.15.4 双模协议，具有扩展范围的无线连接和 特设无线传感器网络中物联网 (IoT) 系统的网状网络。SoC 完全集成了 DC-DC 转换器、LDO、数控晶体振荡器 (DCXO)、PHY、微控制器 (MCU)、安全引擎、SRAM 和 eFlash 存储器。三电源配置和低电压电路设计使 SoC 能够高效地应用于各种电池供电系统并延长电池寿命。TRX 采用具有阻抗匹配电路的低插入损耗片上 TRX 开关、具有 HD2 校准的伪差分电流模式 D 类 PA、具有快速 AGC 算法和复杂 CT-的低中频 RX 架构 $\Delta \Sigma $ ADC，以及具有快速稳定注入 LDO 和基于 LMS 的两点直接频率调制结构的低功耗全数字锁相环 (ADPLL)。在 28-nm CMOS 工艺中实现的 TRX 实现了 +10 dBm 的输出功率和 -63 dBc 的校准 HD2，同时在 2-Mb/s BLE 和 -102 dBm 的 2-Mb/s BLE 和 -102 dBm 中消耗 45 mW 和灵敏度kb/s IEEE802.15.4 at ${10}^{-3}$ BER，同时消耗 6 mW。