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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: V-chip
  • Model Number: VT-CC2500PA-S2
  • Modulation mode: 2-FSK/GFSK/MSK/OOK
  • Center frequency: 2400~2483.5MHz
  • Transmission power: MAX=+20dBm
  • Receiving sensitivity: -113dBm
  • Reliable transmit distance: 800m at open area
  • Antenna: Multilayer Chip Antenna
  • Power supply: 2.4~3.6VDC
  • Dimension size: 22.5*13.8*2.0mm
  • Operating temperature: -20°C~85°C
  • Product name: CC2500 CC2591

Packaging & Delivery

Packaging Details Standard Package
Delivery Time Shipped in 10 days after payment

long range 2.4ghz rf cc2500 1km wireless transmitter and receiver module


General Description

The VT-CC2500PA-S2 RF module is low cost and highly integrated UHF transceiver designed for very low power wireless applications. These certified modules, operating in the license free 2.4GHz ISM band, can be easily integrated into your application, thereby reducing development time and cost.




Key features

2.4G low cost RF module

Supports 2-FSK, GFSK, OOK and MSK

Programmable frequency 2400-2483.5MHz

Configurable data rates 1.2k to 500 kbps

Separate 64 byte RX and TX data FIFOs

Wake-on-Radio functionality

Digital RSSI output

Programmable Carrier Sense indicator

Programmable output power up to+10dBm

Optional Forward Error Correction function

Support automatic Clear Channel Assessment

SPI interface

Low power 2.4~3.6V supply

Small size only 22.5*13.8*2.8mm





Ultra low power UHF wireless transceivers

2.4GHz ISM/SRD band systems

Home and building automation

Wireless alarm and security systems

AMR – Automatic Meter Reading

Remote gate control

Car alarm system

Two-way RKE –Remote Keyless Entry

Low power telemetry

Industrial monitoring and control

Wireless sensor networks


Electrical Characteristics

Ta = 25°C VCC=3.3V closed loop test unless otherwise specified

Typically, equipment utilizing this device requires emissions testing and government approval, which is the responsibility of the equipment manufacture.


1 Modulation mode 2-FSK/GFSK/MSK/OOK

2 Center frequency 2400~2483.5MHz Programmable

3 Frequency error +/-50KHz

4 Transmission power MAX=+20dBm Programmable

5 Receiving sensitivity -113dBm 2.4K data rate.

6 Data rate 1.2~500Kbps Programmable

7 Transmitting current <150mA Po=20dBm,3.3V

8 Receiving current <30mA

9 Sleeping current ≤2uA

10 Reliable transmit distance 800m at open area at 2.4k data rate

11 Antenna Multilayer Chip Antenna

12 Power supply 2.4~3.6VDC

13 Operating temperature -20°C~85°C

14 Dimension size 22.5*13.8*2.0mm


Pin Description


Pin name Pin type Description

VCC Power DC2.4-3.6V power supply

GND Ground

SI Digital Input Serial configuration interface, data input

SCLK Digital Input Serial configuration interface, data input

SO Digital Output Serial configuration interface, data output.

Optional general output pin when CSn is high

GDO2 Digital Output Digital output pin for general use:

• Test signals

• FIFO status signals

• Clear Channel Indicator

• Clock output, down-divided from XOSC

• Serial output RX data

GDO0 Digital I/O Digital output pin for general use:

• Test signals

• FIFO status signals

• Clear Channel Indicator

• Clock output, down-divided from XOSC

• Serial output RX data

• Serial input TX data

Also used as analog test I/O for prototype/production testing

Related Product


Company Information


Packaging & Shipping




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.


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