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FL22-C8
LoRa 868/915MHz SPI Passive crystal standard modules
The FL22-C8 is a new generation of LORA spread spectrum RF transceiver module from Lierda Technology
Group, with smaller size, lower power consumption and higher transmitting power. Based on SEMTECH's RF
integrated chip LLCC68 development block. It is a high-performance IoT wireless transceiver, and its special LoRa
debugging method can greatly increase the communication distance, which can be widely used in various
occasions in the field of short-range IoT wireless communication. It has the characteristics of small size, low power
consumption, long transmission distance and strong anti-interference ability, etc. A variety of antenna solutions
are available according to the actual application, and the module is not equipped with a micro-control chip, which
is mainly used for secondary development by customers.
Product features
Operating frequency band
·
- Operating frequency band 860-930MHz
（902.3-924.9MHZ for FCC application）
Multiple modulation options
·
- Supports LoRa,GFSK, FSK and other
modulation methods
Ultra-low power consumption
·
- Supports 1.8V to 3.7V power supply (transmit
power at +18dBm configuration, must not fall
below 3.1V)
- Transmit current ≤ 125mA (maximum transmit
power configuration)
- Receive current ≤ 6.5mA (DC-DC mode)
- 600uA standby current
- 600nA sleep current (register value saved)
High Link Budget
·
- Sensitivity -124dBm±1dBm (SF=7,
BW_L=125KHz)
- Transmit power Max. 18 dBm
Size
·
- 18.4*18.4*3.0mm
Ultra-long transmission range
·
- 6Km@250bps (urban environment, LoRa
modulation, maximum transmitting power)
High confidentiality
·
- Using LoRa modulation, which cannot be
captured and parsed by conventional wireless
devices
Communication interface
·
- SPI communication interface, can be directly
connected to various microcontrollers, software
programming is very convenient
Applicable scenarios
-Automated Building Circulation System
-Smart Home
-Temperature and humidity sensors
-Wireless remote control, drones
-For applications requiring high communication
distance
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Table of Contents
Related Manuals for Lierda FL22-C8
Summary of Contents for Lierda FL22-C8
- Page 1 FL22-C8 LoRa 868/915MHz SPI Passive crystal standard modules The FL22-C8 is a new generation of LORA spread spectrum RF transceiver module from Lierda Technology Group, with smaller size, lower power consumption and higher transmitting power. Based on SEMTECH's RF integrated chip LLCC68 development block. It is a high-performance IoT wireless transceiver, and its special LoRa debugging method can greatly increase the communication distance, which can be widely used in various occasions in the field of short-range IoT wireless communication.
-
Page 2: Document Revision History
Customers are required to design their products in accordance with the specifications and parameters provided in the document. The company is not responsible for any personal injury or property damage caused by improper handling by the customer. Lierda reserves the right to update this document without prior notice. - Page 3 Operating voltage (V) Operating temperature (°C) Initial frequency offset (KHz) Operating Frequency 902.3-924.9MHz for FCC Band (MHz) application Emission DC-DC Mode，18dBm transmit status DC-DC Mode，EU868，max14dBm (mA) transmit Receiving Power DC-DC Mode，Rx Boosted status consumption BW_L=125kHz (mA) Sleep state Register value storage (uA) Setting the actual output at Transmit power (dBm)
- Page 4 Table 1-3 PA operating mode optimisation settings I Output power paDutyCycle hpMax deviceSel paLut Value in (dBm) SetTxParams 0x04 0x07 0x00 0x01 Note: For example, 915MHz, maximum 18dBm power, when using, you can go to the configuration to change the SetTxParams parameter value size to change the actual output power size, the maximum value is 22.
-
Page 5: Basic Operation
DIO1 Interrupt source mapping pins (see LLCC68 datasheet for details) DIO2 Interrupt source mapping pins (see LLCC68 datasheet for details) BUSY Line Occupancy Indicator SW_CTL2 RF switch control pin 2,TX：SW_CTL1=0，SW_CTL2=1 RX：SW_CTL1=1，SW_CTL2=0 Sleep：SW_CTL1=0，SW_CTL2=0 SW_CTL1 RF switch control pin 1，TX：SW_CTL1=0，SW_CTL2=1 RX：SW_CTL1=1，SW_CTL2=0 Sleep：SW_CTL1=0，SW_CTL2=0 Power ground Power supply VCC MISO... -
Page 6: Frequently Asked Questions
LLCC68 data sheet for the timing of the module register read/write operations. The API instructions are detailed in the LLCC68 datasheet and the corresponding API instruction functions are provided in the Lierda demo routines. Frequently Asked Questions 4.1 Modules cannot communicate even at close range ·... - Page 7 transmission abnormality. · Antenna soldering abnormality RF signal is not reaching the antenna or π circuit is soldered incorrectly. 4.2 Module power consumption anomaly · The module is damaged due to static electricity, etc., resulting in abnormal power consumption. ·hen doing low-power reception, incorrect timing configuration etc. leads to module power consumption does not achieve the expected effect.
- Page 8 Caution Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired...
- Page 9 OEM Guidance 1. Applicable FCC rules This device complies with part 15.247 of the FCC Rules. 2. The specific operational use conditions This module can be used in IoT devices. The input voltage to the module is nominally 3.3 V DC. The operational ambient temperature of the module is -40 °C ~ 85 °C.
- Page 10 The host integrator installing this module into their product must ensure that the final composite product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules, including the transmitter operation and should refer to guidance in KDB 996369.
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