Wireless LoRa Module 433Mhz/868Mhz/915Mhz High Sensitivity (-129dBm) LLCC68

Product Description

433MHz/868MHz/915MHz Wireless LoRa Transceiver Module with LLCC86 Chip 


DL-LLCC68-S is a wireless module designed based on Semtech's radio frequency chip LLCC68. It mainly adopts a new generation of LoRa™ modulation technology for ultra-long-distance spread spectrum communication. This LoRa module is compact in size, and has the characteristics of ultra-low receiving power consumption, strong anti-interference ability, and longer transmission distance than traditional modulation methods. It can be widely used in various wireless communication fields of the Internet of Things.


DL-LLCC68-S RF module has high receiving sensitivity of -129dBm@LoRa, ultra-low receiving current and dormant current, the transmit power can be configured through software, and the maximum power can reach +22dBm. Compared with traditional modulation technology, LoRa™ modulation technology has obvious advantages in anti-blocking and selection, which solves the problem of distance, anti-interference and power consumption that traditional design schemes cannot take into account at the same time.


Applications

● ISM band data communication

● Intelligent buildings

● Smart home Security

● AMR (Automatic Message Recording)

● Wireless remote control

● Building automation

● Wireless sensor network

● Energy control and management

● RKE (Remote Keyless Entry)

● Thermal energy collection, meter measurement


Features 

● Support (G)FSK, LoRa™ and other modulation methods;

● The chip supports a frequency range of 150~960MHz;

● Recommended frequency: 433/470MHz => 433M LoRa module; 868/915MHz => 868/915M LoRa module;

● The working voltage is 3.3V, the maximum output transmitting power is +22dBm, and the maximum working current is 130mA;

● It has low power consumption characteristics in the receiving state, the minimum receiving current is 4.5mA, and the standby current is 0.6mA;

● High receiving sensitivity: -129dBm@LoRa;

● Automatic Channel Activity Detection (CAD) with ultra-fast AFC

● Support spreading factor: SF5/SF6/SF7/SF8/SF9/SF10/SF11;

● Supported bandwidth: 125kHz, 250kHz, 500kHz

   BW = 125kHz @ SF5-SF9

   BW = 250kHz @ SF5-SF10

   BW = 500kHz @ SF5-SF11 



Download Center

DL-LLCC68-S Specification V1.3 


Technical Parameter

Parameter

Min.

Typical

Max.

Unit

Remarks

Operating conditions

Working voltage & IO voltage range

1.8

3.3

3.7

V

To ensure maximum chip power, stable voltage should ≥3.1V

Working temperature range

-40

25

85


Current consumption

Receiving current


4.5


mA

Adopts CAD working mode,

Can effectively reduce the overall working current

Transmission current

@433MHz


110

70

45


mA

@433MHz @ DCDC

+22dBm

+20dBm

+17dbm

Transmission current

@868MHz @915MHz


122

105

98


mA

@868MHz @915MHz @DCDC

+22dBm

+20dBm

+17dbm

Standby current


0.6


uA

Save by register

RF parameters

Recommended Frequency

(Ensure best performance)

300

433

510

MHz

@433MHz

800

868

915

MHz

@868MHz

868

915

960

MHz

@915MHz

Transmit power range

-9

22

22

dBm

Table 13-40 in Data Sheet:

SetTxParams SPI Transaction

LoRa Receiving sensitivity


-129


dBm

@BW =250KH, SF=10, CR =4/5

FSK Receiving sensitivity


-125


dBm

@BR_F = 0.6 kb/s,

FDA = 0.8 kHz, BW_F = 4 kHz

FSK Rate range

0.6


300

Kb/s


LoRa Rate range

1.76


62.5

Kb/s

Min. for SF9, BW_L = 125 kHz

Max. for SF5, BW_L = 500 kHz


Pins Definition:



No

Definitions


Description

1

ANT/NC

AI/AO

Antenna interface, 50Ω impedance, ground and via hole

2

GND

PWR

Reliable grounding

3

3.3V

PWR

To maximize the chip function, 3.3V stable voltage is recommended

4

RESET

I

Reset to initialize the chip, for an increased stability. 

High level as defaulted, while low level to reset the chip

5

BUSY

O

The internal status indicator pin of the chip, which needs to be

 connected to the GPIO of the master MCU

6

DIO1

IO

Digital I/O 1 port, Configurable via software

7

NC


No connection

8

DIO3

IO

Digital I/O 3 port, Configurable via software

9

GND

PWR

Reliable grounding

10

NC


No connection

11

NC


No connection

12

SCK

I

SPI Serial Clock Input

13

MISO

O

SPI Master Input Slave Output

14

MOSI

I

SPI Master Output Slave Input

15

NSS

I

SPI Chip Select Input

16

GND

PWR

Reliable grounding



Product size:

DreamLNK is a high-tech enterprise specializing in ISM band micropower wireless communication technology, providing different kinds of wireless modules and one-stop IoT solutions, including 433/868/915MHz wireless modules, 2.4G wireless Modules, FSK Transceiver Modules, LoRa Modules, Antennas, Remote Controls, and customized wireless RF solutions. Welcome to inquire!

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