V-Chip Microsystems VT-CC1120PL-433M User manual

VT-CC1120PL-433M Wireless Module
User Guide
V-Chip Microsystems, Inc
Add：6 floor, Longtang Building, Nan Shan Cloud Valley Innovation Industrial
Park, No.1183, Liuxian Road, Nanshan District, Shenzhen city
Tel：[phone]
Fax：[phone]
E-mail：[e-mail]
ZIP：518055
Web：www.digiRF.com

COPYRIGHT @ 2013 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION: VT-CC1120PL-2013
VT-CC1120PL-433M
General Description
VT-CC1120PL-433M is based on RF Transceiver CC1120 of TI Chipcon，CC1120 is fully integrated single-chip
radio transceiver designed for high performance at very low power and low voltage operation in cost effective
wireless systems. Added PA, LNA circuit, enhanced output power and sensitivity.The module integrated many RF
functions thus you can use it conveniently and reducing your development time.
Features
433MHz wireless transceiver, Frequency range:410~480MHz
Programmable baseband modulator with 2-FSK, 2-GFSK, 4-FSK,4-GFSK,MSK,OOK/ASK
3.3V , max power +26 dBm
Transmit distance reached 5000 meters, and sensitivity reached -125dBm when setting is 1.2kbps, DEV=4KHz,RX
BW=25KHz
Powerful signal processor, deal with strong signal very clear.
Programmable data rate to 200Kbps
Low power consumption and operating supply voltage：3.0～3.6V DC
Point to point and point to multi-point communication.
Support carrier wave and digital RSSI output.
Separate 128-byte RX and TX FIFOs
High stability and industrial reliability
Applications
Wireless Metering and Wireless Smart Grid (AMR andAMI)
Logistics Tracking System, Warehouse patrol, Electronic label
Industrial monitoring and control
AMR –Automatic Meter Reading
Home and building automation
Consumer Electronics products of wireless control
Wireless alarm and security systems
Wireless sensor networks

COPYRIGHT @ 2013 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION: VT-CC1120PL-2013
VT-CC1120PL-433M
General Characteristics
Test operating conditions：Ta=25°C，VCC=3.3V if nothing else stated.
Parameter
Type
Condition/Note
Operating supply voltage
DC 3.0～3.6V
Frequency range
410-480MHz
Programmable
Frequency accuracy
±10ppm
Modulation format
2-FSK/4-FSK/2-GFSK/4-FSK/MSK/OOK
Programmable
Transmit power
MAX:26dBm(3.3V)
Programmable
Receiver sensitivity
-125dBm
1.2kbps DEV=4KHz RX BW=25KHz
TX current consumption
≤250mA
RX current consumption
≤25mA
Sleep State current consumption
<1uA
Transmit distance
5000M
Antenna impedance
50ohm
Operating voltage
3.0~3.6V
Operating temperature
-40～+85 °C
Storage temperature range
-40～+125°C
Dimension
36.3×22.2mm×4.0 mm(With shield cover)
Note：
1．The module transmission data rate will affect Transmission distance ,the higher the data rate , the closer the
distance, and the lower the receiving sensitivity.
2．The supply voltage to the module will affect TX power, in the operating supply voltage range, the lower the
voltage, the lower the TX power.
3．The module central frequency will change as the operating temperature change, use it under suggest temperature,
the module can work well.
4．The antenna will strongly affect the communication distance, please select matched antenna and connect it
correctly.
5．The module mount will affect the communication distance.

COPYRIGHT @ 2013 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION: VT-CC1120PL-2013
VT-CC1120PL-433M
PCB Description
Pin Configuration
Pin name
Pin type
Description
RESET_N
Digital in
Reset; low level valid
GDIO3
Digital in/out
Digital I/O, register configuration
GDIO2
Digital in/out
Digital I/O, register configuration
SI
Digital In
Digital in (SPI)
SCLK
Digital In
Time input (SPI)
SO/GPIO1
Digital In/out
Digital output (SPI) or general digital In/out port
GDIO0
Digital In/out
Digital I/O, register configuration
CSN
Digital I/O
Module select (SPI), low level valid
RE
Status control
RX=0,TX=1,SLEEP=0
TE
Status control
RX=1,TX=0,SLEEP=0
GND
ground
ANT
Antenna port
Impedance 50 ohm
3.3V
Work power
DC 3.0-3.6V
VDS
Power amplifier
Power amplifier, default short circuit

COPYRIGHT @ 2013 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION: VT-CC1120PL-2013
VT-CC1120PL-433M
Circuit Interface
Note：
The pin sequence above are not the actual pin sequence refer pin description. SPI, I/O interface should
connect with the MCU’s I/O pin in order to archive your functions. The circuit must be take ESD protect to
prevent damage module. Good RF performance determines on the module position, ground and antenna fixing.
Any question about the module please contact with the FAE engineer.
Configuration Registers
The configuration of CC1120 can be done with software SmartRF Studio7. Complete descriptions of the registers
are given in the CC1120 datasheet. We can provide evaluation board and demo code to the customer to develop
and evaluate the module’s capability.
Dimension

COPYRIGHT @ 2013 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION: VT-CC1120PL-2013
VT-CC1120PL-433M
Antenna
We can provide antenna match to the module. And if there is some special requirements to satisfy, we can
coordinate with you to select antenna, match antenna to the module in order to make the product work well.
Some recommend antennas as the table below.
Spring antenna（Standard）
Characteristic: small size, low cost, embedded
conveniently.
SMArubber antenna（Optional）
Characteristic: medium-scale, low cost, high gain
Magnetic MountAntenna（Optional）
Characteristic: high gain, Magnetic Mount ，
suitable for mount on iron box.
Note: Standard is for free, optional need another payment and the cost refer to the antenna price.

COPYRIGHT @ 2013 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION: VT-CC1120PL-2013
VT-CC1120PL-433M
Questions and Answers
Description
Reason and Solution
Can’t
communication
1．The power supply connect not well, check the module VCC whether it is out of maximum
rating.
2．The signal line connect not well, check the module SPI interface.
3．The settings of the transmitter module and receiver module are not the same. Check these
modules’ register configuration.
4．Signal block. If the transmitter work with a high TX power, and the receiver was put at a short
distance(<0.5m), maybe there is a signal block to make no communication.
Communication
distance is too
short
1．The application environment is too bad or the antenna is shield. Put the antenna to a better place
outside or higher throw a coaxial line , replace it with a higher gain antenna.
2．The work space contains a same frequency interference source, or a strong magnetic field
interference,power source disturbance. Try to change the carrier frequency or get far away from the
source of the disturbance.
3．The power supply is not strong. Check the voltage and the current whether it is enough.
High data error
1．The power supply ripple is too big, Change the power supply.
2．Check the module register configuration, it is recommended to set as the CC1120-datasheet.
3．There is a carrier frequency interference, change the channel.
4．The antenna unmatched to the module RF interface, change another matched antenna.
Development Package:
1. CC1120 datasheet（CC1120.pdf）
2. CC1120 register configuration tool（SmartRF Studio 7 v1.4.9.zip）
3. CC1120 demo code (CC1120 Demo Code.rar）
4. Hard ware tools（TI Chipcon Evaluation Board）
Note：
1．You can get the development package above from the salesman when you order the module.
2．As version update，please refer to our latest development materials.

COPYRIGHT @ 2013 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION: VT-CC1120PL-2013
VT-CC1120PL-433M
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