V-Chip Microsystems VT-CC2500PA-M1, Руководство пользователя

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COPYRIGHT @ 2012 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION:
VT-CC2500-APR-2012
VT-CC2500-M1
VT-CC2500-M1
VT-CC2500-M1 VT-CC2500-M1
Circuit
Circuit Circuit
Circuit Interface
Interface Interface
Interface
Note Note Note Note
：
1
．
The module power supply voltage range is DC 1.8
～
3.6V, above DC 3.6V, the module will damage. It is
recommended work at DC 3.3 V.
2
．
The module interface use half circle pad to soldering on the system PCB board, the GND must soldering to
the system digital GND reliably.
3
．
The antenna must the get to the module’s ANT pin as close as possible.
4
．
The MCU which don’t have integrated SPI interface can also control the module, use the normal I/O port to
work like SPI timing to read and write. The SPI data rate is below 10MHz.
5
．
The interface can connect directly to the MCU which use 3.3V power supply, there is no need serial resistor.
If the I/O is open-drain, the pull-up resistor will be added. When connect to the MCU which use 5V power
supply, the MCU’s I/O output current beyond 10 mA, a 2~5k ohm resistor will be series to divide the voltage,
or it will damage the module.
6
．
The module’s pin GDO0 is a general digital I/O port, it can be programmable to produce trigger signal or
clock output.
7
．
The PA control voltage have an effect on the communicate distance and power consumption. In transmit mode,
set TE=0 and RE=1; in receive or sleep mode, set TE=1 and RE=0.
8
．
In the multiple channel application, the channel spacing is recommended to set as 1MHz, or there will be a
same frequency interference.