⚡ 本页包含 AI 生成的分析内容,仅供参考
本文提出一款工作电压低至0.5V的BLE收发器,接收功耗仅1.9mW,实现了-96.4dBm的灵敏度和4.1dB的1MHz邻道抑制,解决了物联网节点需要超低电压供电并保持高性能通信的问题。
Hironori Nakahara1, Norihito Suzuki1, Yutaka Nakada1, Yusuke Shinohe1, Shinichirou Etou1, Tetsuya Fujiwara2, Yasushi Katayama1 Sony Semiconductor Solutions, Atsugi, Japan Sony LSI Design, Atsugi, Japan 1 2 Towards the emerging AI era, IoT is becoming more important. Current IoT wireless nodes require replacement or recharging of the battery. This is impractical when a massive number of nodes are connected to the network. Ultralow-voltage wireless connectivity that can operate with power supplied from energy harvesters, for example 0.5V from solar cells, is necessary [1]. BLE is a good candidate, but a high blocker resilience in the 2.4GHz ISM band is required even though the BLE specifications are not strict compared to other standards. It is a challenge to design RX circuits at low voltage without sacrificing performance, especially blocker resilience and sensitivity. Figure 30.5.1 shows the block diagram of the BLE transceiver. The transceiver
Masahisa Tamura1, Hideyuki Takano1, Satoru Shinke1, Hiroaki Fujita1,