Data Sheet

杭州摩众科技有限公司
HANGZHOU MOZHONG TECHNOLOGY CO., LTD
地址：深圳市宝安区沙井东环工业区 A3 栋 电话：[phone] /82 传真: [phone]
公司网址：WWW.C-CHIP.COM.CN
F-6985_V2.0
第 12 页 共 13 页
OK
AT+A2DPDISC OK Disconnect and start pairing
AT+SPPSTAT +SPPSTAT=3
OK
SPP Status query
9 Circuit connection note:
Please avoid amplifier, booster line, DC/AC circuit disturbance etc., to avoid module power supply
loop in series with large power components for higher SNR.
10 Application Note
A. When using, avoid influence from amplification and voltage booster circuit, DC/DC circuit.
Avoid power supply circuit in series with high-power components for minimum disturbance.
B. If there are battery, metal, LCD screen, speaker etc. nearby, keep antenna distance for minimum
15mm, as shown below.
C. PCB layout: Since metal will weaken antenna function, GND and trace shall be avoided under
antenna when drawing the PCB (better void below it).
D. It is recommended that do not put the module in metal shell because of the shielding effect for
RF signals.
E. As for WIFI environment, signal can be easily affected by environmental conditions, such as
trees, metal and obstacles can absorb signals which will affect data transmission distance.
11 Recommended Reflow Temperature