Ebyte E200-900A17S User manual

E200-900A17S User Manual
900MHz Wireless Audio Module

Chengdu Ebyte Electronic Technology Co., Ltd. E200-900A17S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd 1
CONTENTS
DISCLAIMER ............................................................................................................................................ 3
1. OVERVIEW ............................................................................................................................................4
1.1 INTRODUCTION ....................................................................................................................................................................................... 4
1.2 FEATURES .................................................................................................................................................................................................4
1.3 APPLICATION ........................................................................................................................................................................................... 4
2. SPECIFICATION AND PARAMETER ............................................................................................ 5
2.1 RF PARAMETER .......................................................................................................................................................................................5
2.2 ELECTRIC PARAMETER ..........................................................................................................................................................................5
2.3 HARDWARE PARAMETER .......................................................................................................................................................................6
3 SIZE AND PIN DEFINITION ..............................................................................................................6
4 RECOMMENDED CIRCUIT DIAGRAM ........................................................................................ 8
5 CHANNEL CODE VALUE TABLE .................................................................................................... 8
6 WORKING MODE .................................................................................................................................9
7 COMMAND AND FACTORY PARAMETER .................................................................................. 9
7.1 COMMAND FORMAT ...............................................................................................................................................................................9
7.2 FACTORY DEFAULT PARAMETER .......................................................................................................................................................... 9
8 HARDWARE DESIGN ........................................................................................................................ 10
9 FAQ ..........................................................................................................................................................11
9.1 COMMUNICATION RANGE IS TOO SHORT ........................................................................................................................................ 11
9.2 MODULE IS EASY TO DAMAGE ..........................................................................................................................................................11
9.3 POOR SOUND QUALITY .................................................................................................................................................................... 11
10 PRODUCTION GUIDANCE ........................................................................................................... 12
10.1 REFLOW SOLDERING TEMPERATURE............................................................................................................................................. 12
10.2 REFLOW SOLDERING CURVE ........................................................................................................................................................... 12
11 E220 SERIES ....................................................................................................................................... 13

Chengdu Ebyte Electronic Technology Co., Ltd. E200-900A17S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd 2
12 ANTENNA GUIDANCE ....................................................................................................................13
13 PACKAGE FOR BATCH ORDER ................................................................................................. 13
REVISION HISTORY............................................................................................................................ 14
ABOUT US ................................................................................................................................................ 14

Chengdu Ebyte Electronic Technology Co., Ltd. E200-900A17S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd 3
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. E200-900A17S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd 4
1. Overview
1.1 Introduction
E200-900A17S is a new wireless audio transmission module with integrated
transceiver. It features small size and convenient use. It works in the (863-928MHz)
band (default 863.275MHz), adopts hardware I/O to select channels, supports MIC
input and speaker output, compatible with 3.3V and 5V power supply voltage.
E200-900A17S integrates a microphone (Microphone) and a speaker (Speaker) PA
amplifier, directly connecting the microphone without an external amplifier, and the
audio output can directly drive 250mW/8ohm speakers. The RF part provides a
sensitivity of up to -98dBm, which greatly improves the wireless distance.
1.2 Features
Supports one-to-multiple broadcast transmission;
Under ideal conditions, the communication distance is up to 300m;
Control the working channel through the channel pin (restart takes effect), easy to use;
The master-slave mode can be switched in real time, more flexible;
3.0~5.5V power supply, best performance can be guaranteed when it is over 3.3V;
Industrial standard design, good for long-term use at -40 ~ +85 ℃;
Dual antennas are optional (IPEX/stamp hole), convenient for secondary development and integration.
1.3 Application
Smart home;
Wireless alarm security system;
Wireless audio transmission;
Intelligent voice system;

Chengdu Ebyte Electronic Technology Co., Ltd. E200-900A17S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd 5
2. Specification and parameter
2.1 RF parameter
RF parameter
Value
Remarks
Working frequency
863MHz～928MHz
Support ISM band
Transmit power
16.5dBm～17.5dBm
The software is adjustable, and users need to
develop their own settings
Receive sensitivity
-98dBm
Air rate 500kbps
Modulation
FSK
Modulation technology
Blocking power
15dBm
The probability of burning at close range is
small
Audio sampling rate
60Hz~5KHz
There is a 12-bit ADC inside the chip
Reference distance
300m
Clear and open, antenna gain 5dBi, antenna
height 2.5 meters, air rate 500kbps
2.2 Electric parameter
Main parameter
Performance
Remarks
Min.
Typ.
Max.
Working voltage
(V)
2.3
3.3
5.5
≥5V can guarantee the output power, more than
5.5V will permanently burn the module
I/O voltage
-0.3
-
3.6
Exceeding 3.6V may permanently damage the
module I/O
Communication
level (V)
-0.3
3.3
3.6
Risk of burnout when using 5V level
Working
temperature (℃)
-40
-
+85
Industrial grade design
Power
consu
mptio
n
TX
current
（mA）
98
100
Instantaneous power
consumption, average current:
35mA
Instantaneous power consumption, average current:
35mA
RX
current
（mA）
44
45
Output connection 8ohm,
250mW speaker, maximum
volume 185mA
Output connection 8ohm, 250mW speaker, maximum
volume 185mA

Chengdu Ebyte Electronic Technology Co., Ltd. E200-900A17S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd 6
2.3 Hardware parameter
Hardware parameter
Value
Remarks
Packaging method
SMD
-
Interface
Stamp hole
Spacing 1.27mm
Communication Interface
UART
TTL level(reserved)
Dimensions
16*26 mm
--
Product Weight
/
-
RF interface
IPEX/Stamp hole
Equivalent impedance is about 50Ω
3 Size and pin definition

Chengdu Ebyte Electronic Technology Co., Ltd. E200-900A17S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd 7
No.
Name
Direction
Function
2
ANT
-
Antenna
6
REST
Input
Module reset pin, active low;
11
TXD
Output
TTL serial port output, currently only reading the module version is
available, can be floating when not using;
12
RXD
Input
TTL serial port input, currently only reading the module version is available,
can be floating when not using;
16
TTCLK
-
Debug clock pin, can be floating when not using;
17
TTDIO
-
Debug data pins, can be floating when not using;
20
VCC
Power supply
Positive reference of module power supply, voltage range: 2.3~5.5V DC,
3.3V or 5V is recommended;
23
Mode
Input
The transceiver mode control pin of the module, low-level transmit mode,
high-level receive mode, cannot be left floating;
25
Debug_EN
-
Debug control pin, enter program programming mode for low-level
module, can be floating when not using;
26
CH3
Input
Channel 3, combined with CH0, CH1, CH2 to select 16 working channels, see the
channel table for details;
27
CH2
Input
Channel 2, combined with CH0, CH1, CH2 to select 16 working channels, see the
channel table for details;
28
CH1
Input
Channel 1, combined with CH0, CH1, CH2 to select 16 working channels, see the
channel table for details;
29
CH0
Input
Channel 0, combined with CH0, CH1, CH2 to select 16 working channels, see the
channel table for details;
30
VOIN
Input
Audio input is negative, please refer to the recommended circuit for
hardware design;
31
VOIP
Input
The audio input is positive, please refer to the recommended circuit for
hardware design;
32
VOON
Output
Audio output is negative, see the recommended circuit for hardware
design;
33
VOOP
Output
The audio output is positive, please refer to the recommended circuit for
hardware design;
1、 3、 15、 19、
34、35、36
GND
Power supply
Module ground
4、5、7、8、
9、10、13、
14、18、21、
22、24
NC
-

Chengdu Ebyte Electronic Technology Co., Ltd. E200-900A17S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd 8
4 Recommended circuit diagram
Note: See Chapter 8 for details on hardware design considerations.
5 Channel code value table
The E200-900A17S switches the Channel through different combinations of high and low levels of the four pins of CH0~CH3.
The low level is represented by "0", and the high level is represented by "1". The frequency correspondence table is as follows:
CH3
CH2
CH1
CH0
Channel
Frequency（MHZ）
0
0
0
0
Channel 0
863.275
0
0
0
1
Channel 1
863.79
0
0
1
0
Channel 2
864.295
0
0
1
1
Channel 3
864.795
0
1
0
0
Channel 4
868.115
0
1
0
1
Channel 5
903.205
0
1
1
0
Channel 6
906.045
0
1
1
1
Channel 7
908.075
1
0
0
0
Channel 8
910.13
1
0
0
1
Channel 9
912.18

Chengdu Ebyte Electronic Technology Co., Ltd. E200-900A17S User Manual
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1
0
1
0
Channel 10
914.216
1
0
1
1
Channel 11
915.231
1
1
0
0
Channel 12
917.281
1
1
0
1
Channel 13
921.126
1
1
1
0
Channel 14
923.171
1
1
1
1
Channel15
926.006
Note: After switching channels, a restart is required to take effect.
6 Working mode
The module has two working modes, which are set by the pin Mode; the details are shown in the following table:
Mode(TX/RX
)
Mode
Description
Remarks
TX mode
0
The module is in the transmitting state, and the signal input by
the audio input interface is sent wirelessly;
The transmission can be
switched in real time
RX mode
1
The module is in the receiving state, and the wirelessly received
signal is output through the audio output interface;
The transmission can be
switched in real time
7 Command and factory parameter
7.1 Command format
The module supports software version reading, and can be read through the serial port in the transceiver mode (when reading, only
9600, 8N1 formats are supported):
No.
Command format
Description
1
Read software
version
Command：C3 C3 C3
Respond：E200-900A17S(Vx.x)
For example:
TX：C3 C3 C3(HEX)
Return：E200-900A17S(V1.0)
7.2 Factory default parameter
Factory default info：E200-900A17S
Model No.
Frequency
Air data rate
Baud rate
UART format
TX power
E200-900A17S
863.275MHz
500kbps
9600bps
8N1
17.5dbm