Ebyte TLSR8253F512 Serias, User Manual

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Chengdu Ebyte Electronic Technology Co.,Ltd.
E104-BT12LSP User Manual
Copyright ©2012–2021
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
32

Metal objects near antennas, or placed in metal shells, attenuated signals.very serious;

Incorrect power register setting, excessive air rate (air rate)the higher the distance, the closer;

At room temperature, the lower the voltage, the lower the power.
7.2 Module is easy to damage

Check the power supply to ensure that permanent damage to the module occurs between recommended supply
voltages, if exceeded;

Please check the stability of the power supply. The voltage cannot fluctuate significantly and frequently.

Please ensure anti-static operation during installation and high frequency device electrostatic sensitivity;

Please ensure that the installation process is not too humid. Some components are humidity sensitive.

If there is no special requirement, it is not recommended to use it at too high and too low temperatures.
7.3 The error rate is too high

There is interference from the same frequency signal nearby, away from the source of interference, or from
modifying frequency and channel;

The clock waveforms on the UART are not standard. Check for interference on the UART line;

Poor power supply may also cause confusion. Be sure to ensure the reliability of the power supply;
8. Welding instruction
8.1 Reflow Welding Temperature
Profile Feature Curvilinear characteristics Sn-Pb Assembly Pb-Free Assembly
Solder Paste Tin ointment Sn63/Pb37 Sn96.5/Ag3/Cu0.5
Preheat Temperature min
（
Tsmin
）
Minimum preheating
temperature
100
℃
150
℃
Preheat temperature max (Tsmax)
Maximum preheating
temperature
150
℃
200
℃
Preheat Time (Tsmin to Tsmax)(ts) Preheat time 60-120 sec 60-120 sec
Average ramp-up rate(Tsmax to Tp) Average ascent rate 3
℃
/second max 3
℃
/second max
Liquidous Temperature (TL) Liquidus temperature 183
℃
217
℃
Time
（
tL
）
Maintained Above
（
TL
）
Time above liquidus 60-90 sec 30-90 sec
Peak temperature
（
Tp
） Peak temperature 220-235
℃
230-250
℃
Aveage ramp-down rate
（
Tp to Tsmax
） Average descent rate 6
℃
/second max 6
℃
/second max
Time 25
℃
to peak temperature
Time from 25
℃
to peak
temperature
6 minutes max minutes max