One-to-one full-time full-duplex intercom

One-to-one full-time full-duplex intercomThe audio frequency of the subwoofer is in the range of 20Hz to 120Hz, in order to produce shocking sound effects. The audio coding of this scheme is completel

  • Model: One-to-one full-time full-duplex intercom

一对一全时全双工对讲


One-to-one full-time full-duplex intercom




The audio frequency of the subwoofer is in the range of 20Hz to 120Hz, in order to produce shocking sound effects. The audio coding of this scheme is completely uncompressed, and has low cost, low power consumption and simple interface. The transmitting module of this solution can coexist with the Bluetooth module in a space without interfering with each other, and the Bluetooth operating distance is not affected.



规格项目音频发射模块音频接收模块

供电电压

5V

5V

消耗电流

<25mA

<25mA

工作温度

-10 ℃ ~ +70 ℃

-10 ℃ ~ +70 ℃

频率范围

2400~2483.5MHz

2400~2483.5MHz

信道数目

20

20

调制方式

GFSK

GFSK

发射功率

10dBM


输入阻抗

1OK Ohm


输入电平

2.8Vp-p(Max)


接收灵敏度


-85dBm(Min.)

输出阻抗


32 Ohm

输出电平


2.8Vp-p(Max)

音频时延

<10ms

<10ms

频率响应

10~7.6KHz,±3dB

10~7.6KHz,±3dB

动态范围@1kHz

81dB

81dB

失真度THD

0.1%

0.1%



  • Bluetooth speaker customization, gift Bluetooth speaker, multi-functional Bluetooth speaker, outdoor Bluetooth audio, waterproof Bluetooth speaker, Bluetooth speaker factory

    配对

    发射与接收第一次使用需要配对,配对只需一次,以后开机即可使用

  • Bluetooth speaker customization, gift Bluetooth speaker, multi-functional Bluetooth speaker, outdoor Bluetooth audio, waterproof Bluetooth speaker, Bluetooth speaker factory

    连接信号

    连接成功,接收模块控制脚输出低电平,无连接时为高电平

  • Bluetooth speaker customization, gift Bluetooth speaker, multi-functional Bluetooth speaker, outdoor Bluetooth audio, waterproof Bluetooth speaker, Bluetooth speaker factory

    指灯

    发射模块上电LED慢闪
    接收模块上电没连接LED灯快闪
    接收模块上电连接LED灯慢闪

  • Bluetooth speaker customization, gift Bluetooth speaker, multi-functional Bluetooth speaker, outdoor Bluetooth audio, waterproof Bluetooth speaker, Bluetooth speaker factory

    数据通信

    无线通信内置数据链路,本地串口通信用UART口