V-Chip Microsystems VT-CC2500PA-M1 User Manual - Circuit
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.