ZTE Corporation MG2636 Manuale Utente
MG2636 module
16
There is a voltage output pin with current adjuster on MG2636 module, which can be used to supply external
power to the board. The voltage of this pin and the voltage of baseband processor/memory come from the same
voltage adjuster. The voltage output is available only when the module is on. The normal output voltage is 1.8V,
and the user should absorb the current from this pin as little as possible (less than 10mA). Generally, it is
recommended to use this pin for pull-up when matching the level.
power to the board. The voltage of this pin and the voltage of baseband processor/memory come from the same
voltage adjuster. The voltage output is available only when the module is on. The normal output voltage is 1.8V,
and the user should absorb the current from this pin as little as possible (less than 10mA). Generally, it is
recommended to use this pin for pull-up when matching the level.
Other Advice
In order to make sure the data is saved safely, please don’t cut off the power when the module is on. It’s
strongly recommended to use ON/OFF pin or AT command to turn off the mobile phone.
In order to make sure the data is saved safely, please don’t cut off the power when the module is on. It’s
strongly recommended to use ON/OFF pin or AT command to turn off the mobile phone.
4.3 COM Port
The module provides a full duplex UART interface, whose maximal data rate is 230.4kbps and typical data rate
is 11.5kbps. External interface is 1.8VCMOS level signal, which could be used for upgrade, port
communication, etc.
When using MG2636 module’s UART port to communicate with PC or MCU, please pay attention to the
direction of TX, RX. It’s specially noted that MG2636 module’s UART port only supports 1.8V, therefore for
non 1.8V external UART, it needs to convert the level. Normally a dynatron is used to realize the level
conversion. As shown in figure 4-1, the resistance is just for your information, please calculate again during the
design.
is 11.5kbps. External interface is 1.8VCMOS level signal, which could be used for upgrade, port
communication, etc.
When using MG2636 module’s UART port to communicate with PC or MCU, please pay attention to the
direction of TX, RX. It’s specially noted that MG2636 module’s UART port only supports 1.8V, therefore for
non 1.8V external UART, it needs to convert the level. Normally a dynatron is used to realize the level
conversion. As shown in figure 4-1, the resistance is just for your information, please calculate again during the
design.