Ebyte E220-900M22S User manual

0
E220-900M22S
Llcc68 868 / 915MHz 160mw SPI SMD Lora module

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-900M22S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
1
Contents
Disclaimer............................................................................................................................................................. 2
Features..........................................................................................................................................................3
1 Introduction........................................................................................................................................................4
1.1 Brief Introduction.................................................................................................................................... 4
1.2 Application...............................................................................................................................................4
2 Specification and parameter...............................................................................................................................4
2.1 Limit parameter........................................................................................................................................4
2.2 Operating parameter................................................................................................................................ 5
3 Size and pin definition....................................................................................................................................... 6
4 Basic operation...................................................................................................................................................7
4.1 Hardware design...................................................................................................................................... 7
4.2 Programming........................................................................................................................................... 8
5 basic application.................................................................................................................................................8
5.1 Connection instructions to the emulator.................................................................................................. 8
6 FAQ.................................................................................................................................................................... 9
6.1 Communication range is too short........................................................................................................... 9
6.2 Module is easy to damage........................................................................................................................9
6.3 BER(Bit Error Rate) is high.....................................................................................................................9
7 Production guidance.........................................................................................................................................10
7.1 Reflow soldering temperature................................................................................................................10
7.2 Reflow soldering curve.......................................................................................................................... 11
8 E220 series....................................................................................................................................................... 11
9 Antenna recommendation.................................................................................................................................11
9.1 Recommendation................................................................................................................................... 11
Revision history.................................................................................................................................................. 12
About us.............................................................................................................................................................. 12

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-900M22S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
2
Disclaimer
EBYTE reserves all rights to this document and the information contained herein.
Products, names, logos and designs described herein may in whole or in part be
subject to intellectual property rights. Reproduction, use, modification or disclosure to
third parties of this document or any part thereof without the express permission of
EBYTE is strictly prohibited.
The information contained herein is provided “as is” and EBYTE assumes no
liability for the use of the information. No warranty, either express or implied, is given,
including but not limited, with respect to the accuracy, correctness, reliability and
fitness for a particular purpose of the information. This document may be revised by
EBYTE at any time. For most recent documents, visit www.ebyte.com.

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-900M22S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
3
Features
The measured distance can reach 5500m;
The maximum transmitting power is 160mw, and the software is multi-level adjustable;
Support global license free ism 868 / 915MHz band;
In LoRaTM mode, the data transmission rate is 1.76kbps ~ 62.5kbps;
FSK mode supports up to 300kbps data transmission rate;
FIFO has large capacity and supports 256 byte data cache;
Support spread spectrum factor sF5, SF6, sf7, SF8, Sf9, SF10, SF11;
Support 1.8V ~ 3.7V power supply, more than 3.3V power supply can guarantee the best performance;
Industrial standard design, support - 40 ~ 85 ° C long-term use;
Dual RF interface is optional (IPEX / stamp hole), which is convenient for secondary development and integration.

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-900M22S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
4
1 Introduction
1.1 Brief Introduction
E220-900m22s is an small module, self-developed based on the new
generation of LoRaTM RF chip llcc68, produced by Semtech company. It is
suitable for 868mhz and 915MHz LoRaTM wireless module and uses industrial
32mhz crystal oscillator.
Compared with the previous generation of LoRaTM transceiver, its
anti-jamming performance and communication distance have been further
improved. Because of its new LoRaTM modulation technology, its anti-jamming
performance and communication distance are far superior to the current FSK
and GFSK modulation products. The module is mainly aimed at smart home,
wireless meter reading, scientific research and medical and medium and long distance wireless communication
equipment. The product can cover a wide frequency range of 850 ~ 930mhz.
Because the module is a pure RF transceiver module, it needs to use MCU driver or special SPI debugging tool.
1.2 Application
Home security alarm and remote keyless entry;
Smart home and industrial sensors, etc;
Wireless alarm security system;
Building automation solutions;
Wireless industrial remote controller;
Health care products;
Advanced meter reading architecture (AMI);
Automotive industry applications.
2 Specification and parameter
2.1 Limit parameter
Main parameter
Performance
Remarks
Min
Max
Supply voltage (V)
0
3.7
Over 3.7V permanently burned module
Blocking power (DBM)
-
10
The burning probability is small in close range use
Working temperature (℃)
-40
+85
Industrial grade

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-900M22S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
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2.2 Operating parameter
Main parameter
Performance
Remarks
Min
Type
Max
Operating voltage（V）
1.8
3.3
3.7
≥3.3 V ensures output power
Communication level（V）
-
3.3
-
For 5V TTL, it may be at risk of burning
down
Operating temperature（℃）
-40
-
85
Industrial Design
Operating frequency（MHz）
850
868/915
930
Support ISM band
Power
Consump-
tion
TX current（mA）
-
130
-
Instantaneous power consumption
RX current（mA）
-
6.5
-
-
Sleep current （μA）
-
180
-
Software shutdown
Max TX power（dBm）
21.4
21.5
22
-
Receiving sensitivity（dBm）
-
-129
-
BW_L=250kHz，SF = 10，LORATM；
Air data rate（bps）
1.76k
-
62.5k
Controlled via user’s programming
Main parameter
Description
Remark
Reference distance
5500m
In clear and open environment, the antenna gain is 5dBi, the antenna
height is 2.5m, and the air speed is 2.4kbps.
FIFO
256Byte
Maximum length of single transmission
Crystal frequency
32MHz
-
Modulation mode
LoRa
Lora modulation is recommended
Packaging method
Chip mounted
-
Interface mode
Stamp hole
The spacing is 1.27mm
Communication interface
SPI
0-10Mbps
Dimensions
20* 14*2.8 mm
Including shield
RF interface
Stamp hole / IPEX
-

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-900M22S User Manual
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3 Size and pin definition
Pin No.
Item
Direction
Description
1
GND
Ground, connect to power reference ground
2
GND
Ground, connect to power reference ground
3
GND
Ground, connect to power reference ground
4
GND
Ground, connect to power reference ground
5
DIO3
Configurable universal IO port (see llcc68 manual for details)
6
RXEN
input
RF switch receive control pin, connect external MCU IO, high level
effective
7
TXEN
input
RF switch emission control pin, connected to external MCU IO or dio2,
high level effective
8
DIO2
Input / output
Configurable universal IO port (see llcc68 manual for details)
9
VCC
Power supply, range 1.8V ~ 3.7V (it is recommended to add ceramic filter
capacitor externally)
10
GND
Ground, connect to power reference ground
11
GND
Ground, connect to power reference ground
12
GND
Ground, connect to power reference ground
13
DIO1
Input / output
Configurable universal IO port (see llcc68 manual for details)
14
BUSY
output
For status indication (see llcc68 manual for details)

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-900M22S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
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15
NRST
input
Chip reset trigger input pin, low level effective
16
MISO
output
SPI data output pin
17
MOSI
input
SPI data input pin
18
SCK
input
SPI clock input pin
19
NSS
input
The module chip selection pin is used to start a SPI communication
20
GND
Ground, connect to power reference ground
21
ANT
RF interface, stamp hole
22
GND
Ground, connect to power reference ground
For the pin definition, software driver and communication protocol of the module, please refer to the official llcc68 datasheet
of Semtech
4 Basic operation
4.1 Hardware design
It is recommended to use a DC stabilized power supply. The power supply ripple factor is as small as possible and
the module needs to be reliably grounded;
Please pay attention to the correct connection of the positive and negative poles of the power supply,
reverse connection may cause permanent damage to the module;
Please check the power supply to ensure that between the recommended supply voltage, if exceeding the maximum,
the module will be permanently damaged;
Please check the stability of the power supply. Voltage can not fluctuate greatly and frequently;
When designing the power supply circuit for the module, it is often recommended to reserve more than 30% of the
margin, so the whole machine is beneficial for long-term stable operation;
The module should be as far away as possible from the power supply, transformers, high-frequency wiring and other
parts with large electromagnetic interference;
Bottom LayerHigh-frequency digital routing, high-frequency analog routing, and power routing must be avoided
under the module. If it is necessary to pass through the module, assume that the module is soldered to the Top Layer,
and the copper is spread on the Top Layer of the module contact part(well grounded), it must be close to the digital
part of the module and routed in the Bottom Layer;
Assuming the module is soldered or placed over the Top Layer, it is wrong to randomly route over the Bottom Layer
or other layers, which will affect the module's spurs and receiving sensitivity to varying degrees;
It is assumed that there are devices with large electromagnetic interference around the module that will greatly
affect the performance. It is recommended to keep them away from the module according to the strength of the
interference. If necessary, appropriate isolation and shielding can be done;
Assume that there are traces with large electromagnetic interference (high-frequency digital, high-frequency analog,
power traces) around the module that will greatly affect the performance of the module. It is recommended to stay
away from the module according to the strength of the interference.If necessary, appropriate isolation and shielding
can be done;
If the communication line uses a 5V level, a 1k-5.1k resistor must be connected in series (not recommended, there is
still a risk of damage);
Try to stay away from some physical layers such as TTL protocol at 2.4GHz , for example: USB3.0;

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-900M22S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
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The mounting structure of antenna has a great influence on the performance of the module. It is necessary to ensure
that the antenna is exposed, preferably vertically upward. When the module is mounted inside the case, use a good
antenna extension cable to extend the antenna to the outside;
The antenna must not be installed inside the metal case, which will cause the transmission distance to be greatly
weakened.
4.2 Programming
This module is llcc68 + peripheral circuit, users can operate according to llcc68 chip book completely;
Dio1, dio2 and DIO3 are common IO ports, which can be configured into multiple functions. Dio2 can be connected
to TXEN, not to IO port of MCU, and is used to control RF switch emission. See llcc68 manual for details, and can
be suspended if not used;
The internal use of 32mhz passive crystal oscillator, without pin control, software program control can be;
The differences between llcc68 and sx1262 / sx1268 were as follows
1. Sx1262 / sx1268 supports spread spectrum factors sF5, SF6, sf7, SF8, Sf9, SF10, SF11 and SF12;
Llcc68 supports spread spectrum factors sF5, SF6, sf7, SF8, Sf9, SF10 and SF11.
2. Llcc68 can set the spread spectrum factor and receive bandwidth:
LoRa® Rx/Tx, BW = 125 – 250 – 500 kHz
LoRa®，SF = 5 - 6 - 7 - 8 - 9 for BW = 125 kHz ，
LoRa®，SF = 5 - 6 - 7 - 8 - 9 - 10 for BW = 250 kHz ，
LoRa®，SF = 5 - 6 - 7 - 8 - 9 - 10 - 11 for BW = 500 kHz；
5 basic application
5.1 Connection instructions to the emulator

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-900M22S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
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6 FAQ
6.1 Communication range is too short
When there is a linear communication obstacle, the communication distance will be attenuated accordingly;
Temperature, humidity and co frequency interference will increase the packet loss rate;
The ground absorbs and reflects radio waves, and the test effect near the ground is poor;
Seawater has a strong ability to absorb radio waves, so the seaside test effect is poor.
If there are metal objects near the antenna or placed in the metal shell, the signal attenuation will be very serious;
Power register setting error, air speed setting too high (the higher the air speed, the closer the distance);
The lower the voltage is, the smaller the power is;
The matching degree between the antenna and the module is poor or the quality of the antenna itself is poor.
6.2 Module is easy to damage
Please check the power supply to ensure that it is between the recommended supply voltage. If it exceeds the
maximum value, the module will be permanently damaged.
Please check the stability of the power supply. The voltage should not fluctuate greatly and frequently.
Please ensure that the installation process of anti-static operation, high-frequency device electrostatic sensitivity.
Please ensure that the humidity should not be too high during installation and use, and some components are
humidity sensitive devices.
If there is no special requirement, it is not recommended to use it at too high or too low temperature.
6.3 BER(Bit Error Rate) is high
If there is interference of the same frequency signal nearby, stay away from the interference source or modify the
frequency and channel to avoid interference;
The clock waveform on SPI is not standard, check whether there is interference on SPI line, and SPI bus line should
not be too long;
If the power supply is not ideal, it may cause garbled code, so it is necessary to ensure the reliability of the power
supply;
If the quality of extension line and feeder is poor or too long, the bit error rate will be high;

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-900M22S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
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7 Production guidance
7.1 Reflow soldering temperature
Profile Feature
Curve characteristics
Sn-Pb Assembly
Pb-Free Assembly
Solder Paste
Solder paste
Sn63/Pb37
Sn96.5/Ag3/Cu0.5
Preheat Temperature min （Tsmin）
Minimum preheating
temperature
100 degrees
150 degrees.
Preheat temperature max (Tsmax)
Maximum preheating
temperature
150 degrees.
200 degrees
Preheat Time (Tsmin to Tsmax)(ts)
Preheating time
60-120 sec
60-120 sec
Average ramp-up rate(Tsmax to Tp)
Average rising rate
3℃/second max
3℃/second max
Liquidous Temperature (TL)
Liquid temperature
183 degrees.
217 degrees.
Time（tL）Maintained Above（TL）
Time above liquidus
60-90 sec
30-90 sec
Peak temperature（Tp）
Peak temperature
220-235 degrees
230 to 250 degrees.
Aveage ramp-down rate（Tp to Tsmax）
Average descent rate
6℃/second max
6℃/second max
Time 25℃ to peak temperature
Time from 25 ℃ to peak
temperature
6 minutes max
8 minutes max

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-900M22S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
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7.2 Reflow soldering curve
8 E220 series
Model No.
IC
Frequency
Hz
Tx power
dBm
Distance
km
Package
Size mm
Antenna
E220-900M22S
LLCC68
868M/915M
22
5.5
SMD
14*20
SPI
E22-400M22S
SX1268
433M/470M
22
5.0
SMD
14*20
SPI
9Antenna recommendation
9.1 Recommendation
The antenna is an important role in the communication process. A good antenna can largely improve the
communication system. Therefore, we recommend some antennas for wireless modules with excellent performance and
reasonable price.

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-900M22S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
12
Model No.
Type
Frequeny
Hz
Interface
Gain dBi
Hright
Cable
Function feature
TX868-JZ-5
Rubber rod
antenna
868M
SMA-J
2.0
52
-
Ultra short direct
omnidirectional antenna
TX868-JK-20
Rubber rod
antenna
868M
SMA-J
3.0
210
-
Bendable rubber rod,
omnidirectional antenna
TX868-XPL-100
Sucker antenna
868M
SMA-J
3.5
290
100
Small suction cup antenna, high
cost performance
TX915-JZ-5
Rubber rod
antenna
915M
SMA-J
2.0
52
-
Ultra short direct
omnidirectional antenna
TX915-JK-11
Rubber rod
antenna
915M
SMA-J
2.5
110
-
Bendable rubber rod,
omnidirectional antenna
TX915-JK-20
Rubber rod
antenna
915M
SMA-J
3.0
210
-
Bendable rubber rod,
omnidirectional antenna
TX915-XPL-100
Sucker antenna
915M
SMA-J
3.5
290
100
Small suction cup antenna, high
cost performance
Revision history
Version
Date
Description
Issued by
1.0
2021-01-04
Initial version
Linson
About us
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