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User Manual for EBYTE models including: E200-470A17S 470MHz Wireless Audio Module, E200-470A17S, 470MHz Wireless Audio Module, Wireless Audio Module, Audio Module
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DocumentDocumentE200-470A17S User Manual 470MHz Wireless audio module Chengdu Ebyte Electronic Technology Co., Ltd. E200-470A17SUser Manual CONTENT DISCLAIMER ............................................................................................................................................ 0 1. General Introduction ............................................................................................................................. 0 1.1 Brief Introduction ..................................................................................................................................................................................0 1.2 Features ....................................................................................................................................................................................................0 1.3 Application ..............................................................................................................................................................................................0 2. SPECIFICATION AND PARAMETER ............................................................................................ 1 2.1 RF PARAMETER .......................................................................................................................................................................................1 2.2 ELECTRIC PARAMETER .......................................................................................................................................................................... 1 2.3 HARDWARE PARAMETER .......................................................................................................................................................................2 3. Size and Pin Definition .......................................................................................................................... 2 4. Recommended connection diagram .................................................................................................... 4 5. Channel Code Value Table ....................................................................................................................6 6. Operating mode ...................................................................................................................................... 6 7. Instructions and factory parameters .................................................................................................. 7 7.1 Instruction format ..................................................................................................................................................................................7 7.2 Factory default parameters ..................................................................................................................................................................7 8. Hardware design .....................................................................................................................................7 9. FAQ ...........................................................................................................................................................8 9.1 Communication range is too short.................................................................................................................................................8 9.2 Module is easy to damage ................................................................................................................................................................8 9.3 Sound quality is too bad ...................................................................................................................................................................9 10. Welding operation guidance ...............................................................................................................9 10.1 Reflow soldering temperature ..........................................................................................................................................................9 10.2 Reflow soldering curve ................................................................................................................................................................... 10 11. Related models ....................................................................................................................................10 Copyright ©20122020 1 Chengdu Ebyte Electronic Technology Co., Ltd. E200-470A17SUser Manual 12. Antenna guide .....................................................................................................................................10 12.1 Antenna recommendation ...............................................................................................................................................................10 13. Batch packaging ................................................................................................................................. 11 Revision history ........................................................................................................................................ 11 About us ..................................................................................................................................................... 11 Copyright ©20122020 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. 1. General Introduction 1.1 Brief Introduction E200-470A17S is a new wireless audio transmission module, which integrates transceiver. It has the characteristics of small size and convenient use. It works in the frequency band (470.033 512.273MHz) (default 512.273MHz), uses hardware I/O to select channels, supports MIC input and speaker output, and is compatible with 3.3V and 5V power supply voltages. The E200-470A17S integrates a microphone (Microphone) and a speaker (Speaker) PA amplifier. Direct connection to the microphone does not require an external amplifier. The audio output can directly drive a 250mW/8ohm speaker. The radio frequency part provides a sensitivity of -98dBm, which greatly improves the wireless distance. 1.2 Features Support one-to-many broadcast transmission; Under ideal conditions, the communication distance can reach 300m; Control the working channel through the channel pin (restart effective), easy to use; The master-slave mode can be switched in real time, which is more flexible; Support 3.05.5V power supply, power supply greater than 3.3V can guarantee the best performance; Industrial standard design, supporting long-term use at -40+85; Dual antennas are optional (IPEX/stamp hole), which is convenient for users to develop and integrate. 1.3 Application Smart home; Wireless alarm security system; Wireless audio transmission; Intelligent voice system; Chengdu Ebyte Electronic Technology Co., Ltd. 2. Specification and parameter 2.1 RF parameter E200-470A17SUser Manual RF parameter Working frequency Transmit power Receive sensitivity Modulation Blocking power Audio sampling rate Reference distance 2.2 Electric parameter Value 470.033512.273MHz 16.5dBm17.5dBm -98dBm FSK 15dBm 60Hz~5KHz 300m Remarks Support ISM band The software is adjustable, and users need to develop their own settings Air rate 500kbps Modulation technology The probability of burning at close range is small There is a 12-bit ADC inside the chip Clear and open, antenna gain 5dBi, antenna height 2.5 meters, air rate 500kbps Main parameter Min. Typ. Performance Max. Remarks Working voltage 5V can guarantee the output power, more than 2.3 3.3 5.5 (V) 5.5V will permanently burn the module I/O voltage -0.3 - Exceeding 3.6V may permanently damage the 3.6 module I/O Communication -0.3 3.3 3.6 level (V) Risk of burnout when using 5V level Working -40 - +85 temperature () Industrial grade design TX Power current 98 consu mA Instantaneous power 100 consumption, average current: 35mA Instantaneous power consumption, average current: 35mA mptio RX Output connection 8ohm, Output connection 8ohm, 250mW speaker, maximum n current 44 45 250mW speaker, maximum volume 185mA mA volume 185mA Copyright ©20122020 1 Chengdu Ebyte Electronic Technology Co., Ltd. 2.3 Hardware parameter Hardware parameter Packaging method Interface Communication Interface Dimensions Product Weight RF interface Value SMD Stamp hole UART 16*26 mm 2g IPEX/Stamp hole E200-470A17SUser Manual Remarks - Spacing 1.27mm TTL level(reserved) -±0.1g Equivalent impedance is about 50 3. Size and Pin Definition Pin No. 2 Item ANT Direction - Antenna Description Copyright ©20122020 2 Chengdu Ebyte Electronic Technology Co., Ltd. E200-470A17SUser Manual 6 REST 11 TXD 12 RXD 16 TTCLK 17 TTDIO 20 VCC 23 Mode 25 Debug_EN 26 CH3 27 CH2 28 CH1 29 CH0 30 VOIN 31 VOIP 32 VOON 33 1315 193435 36 4578 91013 141821 2224 VOOP GND NC Input Output Input power supply Input Input Input Input Input Input Input Output Output Module reset pin, low level effective; TTL serial port output, currently only supports reading the module version, and does not use floating processing; TTL serial port input, currently only supports reading the module version, and does not use floating processing; Debug clock pin, do not use floating processing; Debug data pins, do not use floating processing; Module power supply is positive reference, voltage range: 2.35.5V DC, recommended 3.3V or 5V; The module's transceiver mode control pin, low-level transmission mode, high-level reception mode, cannot be left floating; Debug control pin, enter the program burning mode for the low-level module, do not use floating processing; Channel selection 3, combined with CH0, CH1, CH2 to select 16 channels that can work, see the channel table for details; Channel selection 2, combined with CH0, CH1, CH3 to select 16 channels that can work, see the channel table for details; Channel selection 1, combined with CH0, CH2, and CH3 to select 16 channels that can work, see the channel table for details; Channel selection 0, combined with CH1, CH2, CH3 to select 16 channels that can work, see the channel table for details; Audio input is negative, please refer to the recommended circuit for hardware design; The audio input is positive, the hardware design is detailed in the recommended circuit; Audio output is negative, please refer to the recommended circuit for hardware design; The audio output is positive, the hardware design is detailed in the recommended circuit; power supply Module ground - Keep it unused and suspend it for disposal; Copyright ©20122020 3 Chengdu Ebyte Electronic Technology Co., Ltd. 4. Recommended connection diagram E200-470A17SUser Manual Copyright ©20122020 4 Chengdu Ebyte Electronic Technology Co., Ltd. E200-470A17SUser Manual For hardware design considerations, see Chapter 8; Copyright ©20122020 5 Chengdu Ebyte Electronic Technology Co., Ltd. E200-470A17SUser Manual 5. Channel Code Value Table E200-470A17S switches channels through different combinations of high and low levels of the four pins CH0~CH3. Low level is represented by "0", and high level is represented by "1". The frequency correspondence table is as follows: CH3 CH2 CH1 CH0 channel FrequencyMHZ Remark 0 0 0 0 channel0 0 0 0 1 channel1 0 0 1 0 channel2 0 0 1 1 channel3 0 1 0 0 channel4 0 1 0 1 channel5 0 1 1 0 channel6 0 1 1 1 channel7 1 0 0 0 channel8 1 0 0 1 channel9 1 0 1 0 channel10 1 0 1 1 channel11 1 1 0 0 channel12 1 1 0 1 channel13 1 1 1 0 channel14 1 1 1 1 channel15 Note: After switching channels, you need to restart to take effect. 470.033 - 472.849 - 475.665 - 478.481 - 481.297 - 484.113 - 486.929 - 489.745 - 492.561 - 495.377 - 498.193 - 501.009 - 503.825 - 506.641 - 509.457 - 512.273 - 6. Operating mode The module has two working modes, which are set by pin Mode; the details are shown in the following table: Mode (send/receive ) Send mode Mode 0 Mode introduction Remark The module is in the transmitting state, and the signal input by the audio input interface is sent out wirelessly; Transceiver function can be switched in real time Receive mode 1 The module is in the receiving state, and the signal received wirelessly is output through the audio output interface; Transceiver function can be switched in real time Copyright ©20122020 6 Chengdu Ebyte Electronic Technology Co., Ltd. 7. Instructions and factory parameters E200-470A17SUser Manual 7.1 Instruction format The module supports software version reading, and it can be read through the serial port in the transceiver mode (when reading, only 9600, 8N1 format is supported): No. Instruction format Detailed description instructionC3 C3 C3 responseE200-470A17S(Vx.x) 1 Read software version example 1: Send: C3 C3 C3 (hexadecimal format) Return: E200-470A17S(V1.0) 7.2 Factory default parameters model Module model Frequency E200-470A17S 512.273MHz Factory default informationE200-470A17S Air data rate Baud rate Serial port format Transmitting power 500kbps 9600bps 8N1 17.5dbm 8. 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 Layer High-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 Copyright ©20122020 7 Chengdu Ebyte Electronic Technology Co., Ltd. E200-470A17SUser Manual 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 5V level, a 1k-5.1k resistor must be connected in series (not recommended, there is still a risk of damage); The antenna installation structure has a great influence on the performance of the module. Make sure that the antenna is exposed and it is best to be vertically upward; 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. 9. FAQ 9.1 Communication range is too short The communication distance will be affected when obstacle exists; Data lose rate will be affected by temperature, humidity and co-channel interference; The ground will absorb and reflect wireless radio wave, so the performance will be poor when testing near ground; Sea water has great ability in absorbing wireless radio wave, so performance will be poor when testing near the sea; The signal will be affected when the antenna is near metal object or put in a metal case; Power register was set incorrectly, air data rate is set as too high (the higher the air data rate, the shorter the distance); The power supply low voltage under room temperature is lower than recommended value, the lower the voltage, the lower the transmitting power; Due to antenna quality or poor matching between antenna and module. 9.2 Module is easy to damage Please check the power supply source, ensure it is between the recommended supply voltage, voltage higher than the maximum will damage the module. Please check the stability of power source, the voltage cannot fluctuate too much. Please make sure antistatic measure are taken when installing and using, high frequency devices have electrostatic susceptibility. Please ensure the humidity is within limited range, some parts are sensitive to humidity. Please avoid using modules under too high or too low temperature. Copyright ©20122020 8 Chengdu Ebyte Electronic Technology Co., Ltd. E200-470A17SUser Manual 9.3 Sound quality is too bad The power supply ripple is too large, so be sure to reduce the power supply ripple, increase the decoupling capacitor, and increase the EMC filter circuit; The audio input wiring is unreasonable, and it needs to be differentially designed and as close as possible to the module pins; The audio input wiring is unreasonable, and it needs to be differentially designed and as close as possible to the module pins; There may be co-channel signal interference nearby, modify the module channel usage; 10. Welding operation guidance 10.1 Reflow soldering temperature Profile Feature Solder Paste Preheat Temperature min Tsmin Preheat temperature max (Tsmax) Preheat Time (Tsmin to Tsmax)(ts) Average ramp-up rate(Tsmax to Tp) Liquidous Temperature (TL) TimetLMaintained AboveTL Peak temperatureTp Aveage ramp-down rateTp to Tsmax Time 25 to peak temperature Curve characteristics Solder paste Min preheating temp. Max preheating temp. Preheating time Average ramp-up rate Liquid phase temp Time below liquid phase line Peak temp Average ramp-down rate Time to peak temperature for 25 Sn-Pb Assembly Sn63/Pb37 100 150 60-120 sec 3/second max 183 60-90 sec 220-235 6/second max 6 minutes max Pb-Free Assembly Sn96.5/Ag3/Cu0.5 150 200 60-120 sec 3/second max 217 30-90 sec 230-250 6/second max 8 minutes max Copyright ©20122020 9 Chengdu Ebyte Electronic Technology Co., Ltd. 10.2 Reflow soldering curve E200-470A17SUser Manual 11. Related models Product No. E200-470A17S Frequency Hz 470M-512M Transmit power dBm 17.5 Test distance km 0.3 Package SMD Size mm 16*26 Communication Interface Analog/TTL 12. Antenna guide 12.1 Antenna recommendation Antenna is an important role in the communication process. Inferior antennas often have a great impact on the communication system. Therefore, we recommend some antennas as antennas that support our wireless modules and have excellent performance and reasonable price. Product Type Frequency Interference Gain Copyright ©20122020 Height Feeder Features 10 Chengdu Ebyte Electronic Technology Co., Ltd. Hz dBi TX490-JZ-5 Rubber antenna 470/490M SMA-J 2.0 TX490-XPL-100 Sucker antenna 470/490M SMA-J 3.5 E200-470A17SUser Manual Ultrashort Straight and 50 - Omnidirectional Antenna Small Sucker 120 100 antenna,cost-effective 13. Batch packaging Revision history Version 1.0 1.1 1.2 Date 2020-06-16 2020-07-21 2022-10-21 Copyright ©20122020 Description Original version Format revision Content correction Issued by Ren Hao 11 Chengdu Ebyte Electronic Technology Co., Ltd. E200-470A17SUser Manual About us Technical support: support@cdebyte.com Documents and RF Setting download link: https://www.ru-ebyte.com Thank you for using Ebyte products! Please contact us with any questions or suggestions: info@cdebyte.com ------------------------------------------------------------------------------------------------Official hotline:028-61399028 Web: https://www.ru-ebyte.com Address: , Building B5, Mould Industrial Park, 199# Xiqu Ave, High-tech Zone, Chengdu, 611731, Sichuan, China Copyright ©20122020 12