Product Details

VT-CC2540-M1 SoC Wireless Module

User Guide

GeneralDescription

VT-CC2540-M1 is based on RF Transceiver CC2540 of TI Chipcon, it’s a small size and ultra low power UHF wireless module. CC2540 Can Run Both Application and BLE Protocol Stack, Includes Peripherals to Interface With Wide Range of Sensors, Etc. It combinesHigh-Performance and Low-Power 8051 Microcontroller Core. Customer can use it conveniently and reducing your development time.

Features

l Bluetooth low energy technology Compatible

l Suitable for Systems Targeting Compliance With Worldwide Radio Frequency Regulations: ETSI EN 300 328 and EN 300 440 Class 2 (Europe), FCC CFR47 Part 15(US), and ARIB STD-T66 (Japan)

l Lower power consumption with Power Mode 2 (Sleep Timer On): 0.9 μA

l High performance and low power 8051 microcontroller core.

l Bluetooth v4.0 Compliant Protocol Stack for Single-Mode BLE Solution

l Full-Speed USB Interface

l 256 KB In-System-Programmable Flash and 8-KB SRAM

l Support digital RSSI output and Carrier Sense (CS) indicator

l Programmable output power from -20 up to +4dBm for all supported frequencies.

l Small dimension :12.6mm×20.5mm×2.2 mm, integrated PCB antenna

Applications

l 2.4-GHz Bluetooth low energy Systems

l Mobile Phone Accessories

l Sports and Leisure Equipment

l Consumer Electronics

l Human Interface Devices (Keyboard, Mouse, Remote Control)

l USB Dongles

l Health Care and Medical

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 bands	2402~2480MHz
BLE Channel	40
Modulation format	GFSK
Transmit power	-20~+4dBm	Programmable
TX current consumption	<32mA	Po=+4dBm
Receiver sensitivity	-97dBm	High gain mode
RX current consumption	<23mA	High gain mode
Sleep State current consumption	<2uA	Refer to IC operation states
Data rate	1Mbps
FLASH	256KB	128KB optional
SRAM	8KB
Antenna type	PCB antenna
Communication distance	>50m	+4dBm output power.
Operating temperature	-20~+75 °C
Storage temperature range	-40~+125°C
Dimension	12.6mm×20.5mm×2.2mm	See more in PCB description

Note:

1. 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.

2. The module central frequency will change as the operating temperature change, use it under suggest temperature, the module can work well.

3. The antenna will strongly affect the communication distance, please fix the module correctly.

4. The module mount will affect the communication distance.

PCB Description

Pin Configuration

Pin name	Pin type	Description
VCC	Power(Analog)	2.0 V - 3.6 V analog power supply connection.
GND	Ground	Connect to the system ground.
RESET_N	Digital Input	Reset, active low
P0_2	Digital I/O	CC2540 digital I/O pin P0_2
P0_3	Digital I/O	CC2540 digital I/O pin P0_3
P0_4	Digital I/O	CC2540 digital I/O pin P0_4
P0_5	Digital I/O	CC2540 digital I/O pin P0_5
P0_7	Digital I/O	CC2540 digital I/O pin P0_7
P1_0	Digital I/O	CC2540 digital I/O pin P1_0
P1_6	Digital I/O	CC2540 digital I/O pin P1_6
P1_7	Digital I/O	CC2540 digital I/O pin P1_7
P2_1	Digital I/O	CC2540 digital I/O pin P2_1
P2_2	Digital I/O	CC2540 digital I/O pin P2_2

Configuration Registers

The CC2540 functions and descriptions refer to the CC2540 datasheet.

We can provide evaluation board and demo code to the customer to develop and evaluate the module’s capability.

Dimension

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 CC2540-datasheet. 3.There is a carrier frequency interference, change the channel. 4.The antenna unmatched to the module RF interface, change another matched antenna.