Specifications

深圳市芯中芯科技有限公司
SHENZHENSHI XINZHONGXIN TECHNOLOGY CO., LTD.
F-6988 V3.1
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地址：深圳市宝安区沙井东环工业区 A3 栋
ADDRESS:Block 3, Dong Huan Industrial Park, Sha Jing Town, Bao’an District, Shenzhen City, Guangdong, Province, China
公司网/WEB：WWW.C-CHIP.COM.CN
电话/TEL：[phone]/82
传真/FAX: [phone]
十、注意事项 Note ：
A. 关于无线蓝牙的使用环境，无线信号包括蓝牙应用都受周围环境的影响很大，如
树木、金属等障碍物会对无线信号有一定的吸收，从而在实际应用中，数据传输的距离
受一定的影响。
The signal strength is depending on the environment of Bluetooth application, such
as wood and metal will block the t ransmission signal to get the shorter t
ransmission distance.
B. 由于蓝牙模块都要配套现有的系统，放置在外壳中。由于金属外壳对无线射频信
号是有屏蔽作用的。所以建议不要安装在金属外壳中。
Because of metal will block the signal t ransmission, i t is recommend not to
using the metal housing.
C．PCB 布板：蓝牙模块的天线部分的是 PCB 天线，由于金属会削弱天线的功能，在给模
块布板的时候，模块天线下面严禁铺地和走线，若能挖空更好。
PCB layout guideline: no any copper existed in the antenna area of the module is the
PCB antenna, the metal will weaken the function of the antenna when the antenna
module to the module board, following prohibited paving and walk the l ine.
D. 如果模组天线旁边有电池，金属物，液晶屏，喇叭等，要求离天线距离至少 15mm
If the module antenna next to the battery、 metal, liquid crystal screen, loudspeaker,
keep them away from antenna distance 15mm
E. layout 时供电线路建议使用星形走线，并确保蓝牙模组供电线性度要好，还有 BT 的地须与
运放，功放，MCU 等的地分开，而且 BT 下侧不可有其他干扰地
When layout the power supply line recommended star line, and to ensure that the Bluetooth
module Power supply lines is better , and BT should be with the amplifier, power amplifier, MCU,
separately, and the underside of the BT has no other interference
F. 天线周围不可走控制线，电源线，音频线，MIC 等干扰线.
suggests the module antenna part floating on the floor, do not go around the antenna control line,
power line, audio line, MIC interference lines;