User's Guide

7
Figure 2-4 description of DWM-800B RF connectors
2.2. Application note of DWM-800B interfaces
DWM-800B provides rich interfaces for secondary development by the MINI PCI-E, such as USIM card interface,
USB interface, UART interface, PCM（Pulse Code Modulation) interface, I2C interface, power supply interface and so
on. The detailed information will be described in the following sections.
2.2.1. Power supply and Ground
The power supply input for DWM-800B module is listed as
follows: DC +3.3V～+3.6V, for DWM-800B working voltage;
The description of DWM-800B Power supply and GND pins is shown in Table 2-1 below.
Table 2-1 The description of DWM-800B Power supply and GND pins
Power input
The correlative pins in MINI PCI-E
SN. of the MINI
PCI-E
DC: +3.3V～+3.6V input
VDD3V3
2,24,39,41,52
GND
GND
4,9,15,18,21,26,27,29,34,35,37,
43,50