Specifications

DX-BT24-T MODULE SPECIFICATION
Shenzhen DX-SMART Technology Co., Ltd. www.szdx-smart.com
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2.5.2. Power Supply Stability Requirements
The power supply range of DX-BT24-T is 2.8~3.6V. It is necessary to ensure that the input
voltage is not lower than 2.8V. The following figure shows the voltage drop of VBAT during radio
frequency burst transmission.
In order to reduce the voltage drop, it is recommended to reserve 2 (22uF, 0.1uF) chip
multilayer ceramic capacitors (MLCC) with the best ESR performance for VBAT, and the capacitors
should be placed close to the VBAT pin. The reference circuit is as follows：
2.5.3. Power Down Requirements
Since the working current of the chip of this module is very low, when the power is
disconnected, if the IO port of the peripheral MCU has a weak current supplying the module, the
module is likely to be in an abnormal working state at this time, so after disconnecting the power
of the module, the MCU is connected to the module All IO ports must be configured as
pull-down.