ZTE Corporation ZTEMC2261 Manuale Utente
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17
MC2261
Hardware Development Guide of Module Product
3. A
PPLICATIONS
3.1. P
OWER
M
ANAGEMENT
The module could work under the conditions as follows:
Connect VPH_PWR and VBAT pins together, and then connect to the power as shown in Figure 3-1.
Figure 3–1 Powered by VBAT and VPH_PWR pin
Refer to Table 3-1 for the module’s input power characteristics. If the input voltage is not in the range, it must be converted to
the voltage below:
Table 3–1
Input
Power Characteristics
Status
Max. Value
Typical Volute
Min. Value
Power voltage
supply
+4.2V DC
+3.8V DC
+3.3V DC
Power current
supply
< 3mA (Average
value)
--
800mA (Depending on the network
signal condition)
When powered, the module will be automatically powered on.
3.2. GPIO
The Module have 12 GPIO,,The GPIO level is 1.8V, the logic-level voltage refer to the Table 2-2.
The GPIO input and output functions can be set by software. When the GPIO is set to output, the output drive current are
2~16mA. in the range of 2~16mA current value can be set by software. When the GPIO is set to input, it can be set to pull-up or
pull-down by software.
NOTE: The AT commands now do not support setting the GPIO functions. If you want AT commands to support the functions, the software
must be revised.
3.3. USB
The module provides a USB2.0 full-speed interface. The ESD protector and RC circuit are required to restrain EMI for USB port.
Please see Figure 3-2 for USB port.
The USB port could be used for AT command、software upgrade, RF calibration and mobile station test.