关于EFR32芯片替代型号调研结果: 主要指标包括:1.低功耗 2:RF发射机性能 3:RF接收机性能 1:EFR32: 芯科 Receiver Sensitivity 。-106.0 dBm(1% PER) @ 250 kbps O-QPSK DSSS ’-106.5 dBm (0.1% BER) @ 125 kbps GFSK -102.2 dBm (0.1% BER) @ 500 kbps GFSK -98.5 dBm (0.1% BER) @ 1 Mbps GFSK -95.7 dBm (0.1% BER) @ 2 Mbps GFSK Current consumption 5.2 mA RX current @ 250 kbps O-QPSK DSSS. 4.5 mA RX current @ 1 Mbps GFSK 4.8 mA TX current @ 0 dBm(MGM240Px22) 18.8 mA TX current @ 10 dBm(MGM240Px22) 158 mA TX current @ 20 dBm(MGM240Px32) 33.4 μAMHz in Active Mode (EMO) @ 39.0 MHz 1.3 uA EM2 DeepSleep current (16 kB RAM retention andRTC running from LFRCO) Regulatory Certifications 2:STM32WB55:ST Radio– 2.4 GHz– RF transceiver supporting Bluetooth® 5.2 specification, IEEE 802.15.4-2011 PHY and MAC, supporting Thread and  Zigbee® 3.0– RX sensitivity: -96 dBm (Bluetooth® Low Energy at 1 Mbps), -100 dBm (802.15.4)– Programmable output power up to +6 dBm with 1 dB steps– Integrated balun to reduce BOM– Support for 2 Mbps– Dedicated Arm® 32-bit Cortex® M0+ CPU for real-time Radio layer– Accurate RSSI to enable power control– Suitable for systems requiring compliance with radio frequency regulations ETSI EN 300 328, EN 300 440, FCC CFR47 Part 15 and ARIB STD-T66– Support for external PA– Available integrated passive device (IPD) companion chip for optimized matching solution (MLPF-WB-01E3 or  MLPF-WB-02E3)  Ultra-low-power platform– 1.71 to 3.6 V power supply–– 40 °C to 85 / 105 °C temperature ranges– 13 nA shutdown mode– 600 nA Standby mode + RTC + 32 KB RAM– 2.1 µA Stop mode + RTC + 256 KB RAM– Active-mode MCU: < 53 µA / MHz when RF and SMPS on– Radio: Rx 4.5 mA / Tx at 0 dBm 5.2 mA 3:CC2630:TI 宽电源电压范围– 正常工作电压:1.8V至3.8V– 外部稳压器模式:1.7V至1.95V– 有源模式 RX:5.9mA– 有源模式 TX(0dBm):6.1mA– 有源模式 TX(+5dBm):9.1mA– 有源模式 MCU:61µA/MHz– 有源模式 MCU:48.5CoreMark/mA– 有源模式 传感器控制器: 0.4mA + 8.2μA/MHz– 待机电流:1.1μA(RTC运行,RAM/CPU保 持)– 关断电流:100nA(发生外部事件时唤醒) • 射频(RF)部分– 2.4GHz RF 收发器,符合IEEE802.15.4 PHY 和MAC– 出色的接收器灵敏度(–100dBm)、可选择性和阻 断性能– 105dB 的链路预算– 最高达+5dBm的可编程输出功率– 单端或差分RF接口– 适用于符合各项全球射频规范的系统 4:TLSR8258:泰凌微 1.2.2 RF Features RF features include: 1) BLE/802.15.4/2.4GHz RF transceiver embedded, working in worldwide 2.4GHz ISM band. 2) Bluetooth LE 1Mbps and 2Mbps, Long Range 125kbps and 500kbps. 3) IEEE802.15.4 compliant, 250kbps. 4) 2.4GHz proprietary 1Mbps/2Mbps/250kbps/500kbps mode with Adaptive Frequency Hopping feature support. 5) Rx Sensitivity: -96dBm@BLE 1Mbps, -99.5dBm@ IEEE802.15.4 250kbps, -93dBm @ BLE 2Mbps mode, -99dBm @ BLE 500kbps mode, -101dBm @ BLE 125kbps mode. 6) Tx output power: up to +10dBm. 7) Single-pin antenna interface. 8) RSSI monitoring with +/-1dB resolution. 9) Auto acknowledgement, retransmission and flow control. 10) Support full-function BLE location features. 1.2.3 Features of power management module Features of power management module include: 1) Embedded DCDC. 2) Battery monitor: Supports low battery detection. 3) Power supply: 1.8V~3.6V. 4) Multiple stage power management to minimize power consumption. 5) Low power consumption:  Whole Chip RX mode: 5.3mA  Whole Chip TX mode: 4.8mA @ 0dBm with DCDC  Deep sleep with external wakeup (without SRAM retention): 0.4uA  Deep sleep with SRAM retention: 1uA (with 8kB SRAM retention), 1.2uA (with 16kB SRAM retention), 1.4uA (with 32kB SRAM retention)