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问答精选

  • 2020-11-27 10:25:57

    意泊之: 是否有蓝牙支持全球唯一码?

    答:Silicon Labs蓝牙支持EUI-48/64

  • 2020-11-27 10:26:27

    啊思哦哦: 目前5.2有那些手机支持?

    答:旗舰级有部分支持,具体还是要到SIG官网查询相关手机的认证信息

  • 2020-11-27 10:26:30

    jf_69790107: BG22能否支持深度休眠和深度唤醒功能?

    答:BG22支持低至0.54uA的深度休眠,在深度休眠下,可以通过GPIO或者RF Sense唤醒

  • 2020-11-27 10:33:42

    hou8688: EFR32BG22 模块如何申请开发板

    答:If you would like further info about the EVB, it is encouraged for you to contact one of our distributors in your country for further discussion. https://www.silabs.com/about-us/contact-sales?view=map

  • 2020-11-27 10:28:34

    jf_69790107: BG22与第一代BG21在电源功耗方面有哪些改进?

    答:BG22内置DCDC,发射,接收,待机电流都有改善

  • 2020-11-27 10:26:20

    jf_83660145: 5.2能组网不?谢谢!

    答:客户可以开发中心节点,实现星状网

  • 2020-11-27 10:20:54

    意泊之: 蓝牙5.2比5.1有哪些地变化?

    答:For the details, you can refer https://www.silabs.com/support/training/evolution-of-bluetooth-5-5-1-5-2-apac

  • 2020-11-27 10:27:04

    llhvip2011: 蓝牙mesh如何实现呢

    答:SIG联盟目前有蓝牙Mesh 1.01的标准,马上会发布1.1的标准。具体组网方式,可以到蓝牙官网或者Silicon Labs官网学习

  • 2020-11-27 10:20:30

    wgzgege: BG22是自身就带硬件安全芯片吗?是保证通信的安全还是?

    答:Yes. Hardware Cryptographic Acceleration for AES128/256, SHA-1, SHA-2 (up to 256-bit), ECC (up to 256-bit), ECDSA,and ECDH. It depends on your use case. Bluetooth standard also provide security for wireless communication

  • 2020-11-27 10:20:54

    zhyouer: 是不是具有支持蓝牙测向功能?

    答:Bluetooth Direction Finding (AoA and AoD) is supported

  • 2020-11-27 10:21:21

    luokuipeng: 带空中唤醒功能吗?

    答:Yes. You can refer to https://www.silabs.com/support/training/wake-bluetooth-from-deep-sleep-using-an-rf-signal

  • 2020-11-27 11:22:38

    JonQB: 蓝牙芯片的功耗和传输距离是否有关系?开发软件或芯片本身能不能支持满足最低传输需要的功耗?

    答:有一定关系。更长的传输距离需要更高的发射功率,意味着更高的电流。另外,更长的传输距离需要更低的通讯速率,意味着更长的发包时间,也就是更大的功耗。

  • 2020-11-27 11:24:20

    hero012cn: 请问蓝牙 产品 有车规级的么

    答:没有

  • 2020-11-27 11:23:47

    ezcui: 是否还会有哪些安全隐患呢?

    答:目前没有发现

  • 2020-11-27 11:24:37

    ezcui: 是否也有哪些性能短板?

    答:BG22 32K的内存可能不能满足部分应用的需要

  • 2020-11-27 11:21:39

    Johncx: 本次芯片内置了DCDC,那么还需要外置电感等器件么?

    答:需要外置电感

  • 2020-11-27 10:21:33

    jf_69790107: BG22蓝压5.2的协议向下兼容吗?

    答:Yes but down to v4.0 only (i.e. not support v3.x or v2.x)

  • 2020-11-27 10:00:21

    risingcn: BG22 以及相应的模块 BGM220的芯片有哪些优势?

    答:超低功耗,超长距离(coded Phy),超高吞吐量(2M PHY,超长广播包),丰富的安全特性等等

  • 2020-11-27 10:20:36

    weijinke: BG22的硬件加密,是IC存储数据加密吗?应对硬件信号探测等暴力破解有没有特殊防护?

    答:For the details, you can refer https://www.silabs.com/support/training/secure-your-bluetooth-design-with-bg21-bg22

  • 2020-11-27 10:20:56

    hupisces: BG22休眠状态和工作状态功耗分别多大?

    答:Radio Performance ? -106.7 dBm sensitivity @ 125 kbps GFSK ? -98.9 dBm sensitivity @ 1 Mbit/s GFSK ? -96.2 dBm sensitivity @ 2 Mbit/s GFSK ? TX power up to 6 dBm ? 2.5 mA radio receive current ? 3.4 mA radio transmit current @ 0 dBm output power ? 7.5 mA radio transmit current @ 6 dBm output power ? Low System Energy Consumption ? 3.6 mA RX current (1 Mbps GFSK) ? 4.1 mA TX current @ 0 dBm output power ? 8.2 mA TX current @ 6 dBm output power ? 27 μA/MHz in Active Mode (EM0) at 76.8 MHz ? 1.40 μA EM2 DeepSleep current (32 kB RAM retention and RTC running from LFXO) ? 1.75 μA EM2 DeepSleep current (32 kB RAM retention and RTC running from Precision LFRCO) ? 0.17 μA EM4 current

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