General Description

VT-CC1120-433M is based on RF Transceiver CC1120 of TI Chipcon,it’s a small size and ultra low power UHF wireless module. 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. 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

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

 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

General Characteristics

Test operating conditions:Ta=25°C,VCC=3.3V if nothing else stated.

Parameter Type 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:

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.

PCB Description

Pin Configuration

Pin name Pin type 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

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

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.

SMA rubber antenna(Optional)

Characteristic: medium-scale, low cost, high gain

Magnetic Mount Antenna(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.