Specifications

prohibited paving and walk the line.
D. If the module antenna next to the battery、 metal, liquid crystal screen, loudspeaker,
at least keep them away from antenna distance 15mm
E. 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. suggests the module antenna part floating on the floor, do not go around the antenna
control line, power line, audio line, MIC interference lines;
G. If the module antenna near the row seats, Because of metal will block the signal
transmission, it is recommended to use professional high-gain antenna.
11.Recommended reflow temperature：
Key features of the profile:
-Initial Ramp=1-2.5℃/sec to 175℃ equilibrium
-Equilibrium time=60 to 80 seconds
-Ramp to Maximum temperature (250℃)=3℃/sec Max
-Time above liquidus temperature(217℃): 45 - 90 seconds
-Device absolute maximum reflow temperature: 250℃
12.Application schematic diagram：
Reference schematic diagram for reference purposes only!