V-Chip Microsystems VT-CC1121-433M User manual

VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M Wireless
Wireless
Wireless
Wireless Module
Module
Module
Module
User
User
User
User Guide
Guide
Guide
Guide
V-CHIP MICROSYSTEMS Co. Ltd
Address: Room 612-613, Science and Technology Service Center Building,
NO.1, Qilin Road, Nanshan District, Shenzhen, Guangdong
TEL ：[phone]
FAX ：[phone]
E-mail ：[e-mail]
Post Code ：518052
Web Site ：www.digiRF.com

COPYRIGHT @ 2012 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION:
VT-CC1121-APR-2012
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
General
General
General
General Description
Description
Description
Description
VT-CC1121-433M is based on RF Transceiver CC1121 of TI Chipcon ，it ’ s a small size and ultra low power UHF
wireless module. CC1121 is fully integrated single-chip radio transceiver designed for high performance at very
low power and low voltage operation in cost effective wireless systems. The circuit is mainly intended for the
ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) frequency bands at 164-192 MHz,
410-480 MHz and 820-960 MHz . The MAX RF output power can be set as high as +15dBm, with data rate as
high as 200Kbps. The module integrated many RF functions thus you can use it conveniently and reducing your
development time.
Features
Features
Features
Features
�
433MHz wireless transceiver,
Frequency bands
at 170M/868M/915M/950MHz are customized
�Programmable baseband modulator with 2-FSK/2-GFSK/4-FSK/4-GFSK/MSK/OOK/ASK
�Programmable output power from -11 to +15dBm
�High receiver sensitivity down to -123dBm while 1.2kbps data rate
�Programmable data rate 1.2 ～200Kbps
�
Low power consumption and operating supply voltage ：2.0 ～3.6V DC
�
Point to point and point to multi-point communication.
�
Support carrier sense and digital RSSI output.
�Separate 128-byte RX and TX FIFOs
�High stability and industrial reliability
�Small dimension ：23.05mm × 15.06mm × 1.8 mm
Applications
Applications
Applications
Applications
�
Wireless Metering and Wireless Smart Grid (AMR and AMI)
�
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 @ 2012 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION:
VT-CC1121-APR-2012
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
General
General
General
General Characteristics
Characteristics
Characteristics
Characteristics
Test operating conditions ：Ta=25 ° C ，VCC=3.3V if nothing else stated.
Parameter
Parameter
Parameter
Parameter Type
Type
Type
Type Condition/Note
Condition/Note
Condition/Note
Condition/Note
Operating supply voltage DC 2.0 ～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 -11 ～+15dBm Programmable
TX current consumption <50mA
Receiver sensitivity
-118dBm (1.2kbps)
Refer to data rate
RX current consumption <22mA
Sleep State current consumption <1uA
Data rate 0 ～200Kbps Programmable
Antenna impedance 50ohm
Operating voltage 2.0~3.6V
Operating temperature -20 ～+75 ° C
Storage temperature range -40 ～+125 ° C
Dimension 23.05 mm × 15.06 mm × 1.8mm See more in PCB description
Note
Note
Note
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 @ 2012 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION:
VT-CC1121-APR-2012
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
PCB
PCB
PCB
PCB Description
Description
Description
Description
Pin
Pin
Pin
Pin Configuration
Configuration
Configuration
Configuration
Pin
Pin
Pin
Pin name
name
name
name Pin
Pin
Pin
Pin type
type
type
type Description
Description
Description
Description
VCC Power(Analog) DC 2.0-3.6V power supply
GND Ground
CS_N Digital In Chip select, active low
GDIO0 Digital I/O Data output ，configuration by register
SO/GPIO1
Digital I/O
Data output （SPI ）or GPIO
SCLK Digital In Clock input （SPI ）
SI Digital In Data input （SPI ）
GDIO2
Digital I/O
Data input/output ，configuration by register
GDIO3 Digital I/O Data input/output ，configuration by register
RESET_N Digital In Reset ，active low
ANT Antenna port Impedance 50ohm

COPYRIGHT @ 2012 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION:
VT-CC1121-APR-2012
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
Circuit
Circuit
Circuit
Circuit Interface
Interface
Interface
Interface
Note
Note
Note
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
Configuration
Configuration
Configuration Registers
Registers
Registers
Registers
The configuration of CC1121 can be done with software SmartRF Studio7. Complete descriptions of the registers
are given in the CC1121 datasheet. We can provide evaluation board and demo code to the customer to develop
and evaluate the module ’ s capability.
Dimension
Dimension
Dimension
Dimension

COPYRIGHT @ 2012 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION:
VT-CC1121-APR-2012
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
Antenna
Antenna
Antenna
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
Spring
Spring
Spring antenna
antenna
antenna
antenna （Standard
Standard
Standard
Standard ）
Characteristic: small size, low cost, embedded
conveniently.
SMA
SMA
SMA
SMA rubber
rubber
rubber
rubber antenna
antenna
antenna
antenna （Optional
Optional
Optional
Optional ）
Characteristic: medium-scale, low cost, high gain
Magnetic
Magnetic
Magnetic
Magnetic Mount
Mount
Mount
Mount Antenna
Antenna
Antenna
Antenna （Optional
Optional
Optional
Optional ）
Characteristic: high gain, Magnetic Mount ，
suitable for mount on iron box.
Note:
Note:
Note:
Note: Standard
Standard
Standard
Standard is
is
is
is for
for
for
for free,
free,
free,
free, optional
optional
optional
optional need
need
need
need another
another
another
another payment
payment
payment
payment and
and
and
and the
the
the
the cost
cost
cost
cost refer
refer
refer
refer to
to
to
to the
the
the
the antenna
antenna
antenna
antenna price.
price.
price.
price.

COPYRIGHT @ 2012 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION:
VT-CC1121-APR-2012
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
Questions
Questions
Questions
Questions and
and
and
and Answers
Answers
Answers
Answers
Description
Description
Description
Description Reason
Reason
Reason
Reason and
and
and
and Solution
Solution
Solution
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 CC1121-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
Development
Development
Development Package:
Package:
Package:
Package:
1. CC1121 datasheet （CC1121.pdf ）
2. CC1121 register configuration tool （SmartRF Studio 7 v1.4.9.zip ）
3. CC1121 demo code (CC1121 Demo Code.rar ）
4. Hard ware tools （TI Chipcon Evaluation Board ）
Note
Note
Note
Note ：
1
1
1
1． You
You
You
You can
can
can
can get
get
get
get the
the
the
the development
development
development
development package
package
package
package above
above
above
above from
from
from
from the
the
the
the salesman
salesman
salesman
salesman when
when
when
when you
you
you
you order
order
order
order the
the
the
the module.
module.
module.
module.
2
2
2
2．As
As
As
As version
version
version
version update
update
update
update ，please
please
please
please refer
refer
refer
refer to
to
to
to our
our
our
our latest
latest
latest
latest development
development
development
development materials.
materials.
materials.
materials.

COPYRIGHT @ 2012 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd VERSION:
VT-CC1121-APR-2012
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
IMPORTANT
IMPORTANT
IMPORTANT
IMPORTANT NOTICE
NOTICE
NOTICE
NOTICE
V-CHIP MICROSYSTEMS Co. Ltd (below called V-CHIP) reserve the right to make corrections,
modifications, enhancements, improvements, and other changes to its products and services at any time and
to discontinue any product or service without notice. Customers should obtain the latest relevant information
before placing orders and should verify that such information is current and complete.
V-CHIP warrants performance of its hardware products to the specifications applicable at the time of sale
in accordance with V-CHIP ’ s standard warranty.
V-CHIP does not warrant or represent that any license, either express or implied, is granted under any
V-CHIP patent right, copyright, mask work right, or other V-CHIP intellectual property right relating to any
combination, machine, or process in which V-CHIP products or services are used. Reproduction of V-CHIP
information in V-CHIP data books or data sheets is permissible only if reproduction is without alteration and
is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this
information with alteration is an unfair and deceptive business practice. V-CHIP is not responsible or liable
for such altered documentation. Information of third parties may be subject to additional restrictions. Resale
of V-CHIP products or services with statements different from or beyond the parameters stated by V-CHIP
for that product or service voids all express and any implied warranties for the associated V-CHIP product or
service and is an unfair and deceptive business practice. V-CHIP is not responsible or liable for any such
statements.