Jiangsu Tech-leading information technology Co., Ltd. EW-BLED-22 BLE Standard Module V1.
Jiangsu Tech-leading information technology Co., Ltd. About this manual 《 EW-Bled -22 Module Specification 》provides an introduction to the basic functions of the EW-BLED-22 module, including the electrical specifications, RADIO frequency performance, pin size, and reference schematic design of the module.Readers can refer to this document for a detailed understanding of the overall functional parameters of the module. Change of History Rev. information Rev. V1.0 Date 2020.08.
Jiangsu Tech-leading information technology Co., Ltd. Table content About this manual.........................................................................................................2 Change of history...........................................................................................................2 Table content................................................................................................................ 3 1. Profile .....................................................
Jiangsu Tech-leading information technology Co., Ltd. 1. Profile 1.1 Features The EW-Bled -22 is a small, low-cost Bluetooth standardized module developed by Jiangsu Tech-leading information technology Co.,Ltd. The features of this module are as follows.
Jiangsu Tech-leading information technology Co., Ltd. 2. Electronic data Absolute Maximum Ratings Rating Min Max Unit Supply Voltage VCC 1.8 4.3 V I/O Voltage ALDO_OUT 2.1 3.5 V Storage Tstr -20 85 ºC Temperature Note： The electrical characteristics listed are target specifications for reference only. Some of the data may be updated based on actual test results。 The voltage values shown are based on GND in the module.
Jiangsu Tech-leading information technology Co., Ltd. Audio CODEC Digital to Analogue Converter(Mono) PARAMETER CONDITIONS MIN TYP MAX UNIT Resolution - - - 20 Bits Sampling frequency The synchronized clock 8 48 kHz Fin=1kHz SNR (Signal to Noise Ratio) B/W=20Hz—20KHz A-Weighted THD_N<0.01% 92 Fs(8K,16K,32K,44.1K,48K) dB Digital Gain Digital Gain -48 32 dB Analogue Gain Analog Gain Resolution = 0 -30 dB Output voltage VDDA=2.
Jiangsu Tech-leading information technology Co., Ltd. 3. Pins definition 3.
Jiangsu Tech-leading information technology Co., Ltd. 3.2 Pins definition PIN # Pin name Type 1 GND GND 2 VCC POWER 3 PA4 I/O Analog Output Description Module GND 1.8V-4.3V power supply，typical value 3.
Jiangsu Tech-leading information technology Co., Ltd. 4. Schematic 4.
Jiangsu Tech-leading information technology Co., Ltd. 4.2 Module size Figure4-1 Top View (Seen from Top) Bottom View (Seen from Bottom) Figure 4-2 module thickness Note：Tech-leading company reserves the right to select components from different suppliers to realize the function of modules.All mechanical, electrical specifications and modulecertifications are maintained.All dimensions are in mm (mm).
Jiangsu Tech-leading information technology Co., Ltd. Figure 4- 3: Module design size Length (X) 11.20 ± 0.15 mm Width (Y) 16.00± 0.15 mm Length (X) 11.20 mm Width (Y) 4.34 mm PCB thickness Height (H) 0.80 ± 0.05 mm Module thickness（PCB thickness+Maximum Height (H) 2.50 mm typical Module overall size Antenna location size component height） 4.3 Attention Bluetooth works at the frequency of 2.4ghz, so influences of various factors on wireless transceiver should be avoided as far as possible.
Jiangsu Tech-leading information technology Co., Ltd. 4.
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Jiangsu Tech-leading information technology Co., Ltd. FCC warning： 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 operation.
OEM Guidance 1. Applicable FCC rules This module is granted by Single Modular Approval. It complies to the requirements of FCC part 15C, section 15.247 rules. 2. The specific operational use conditions This module can be used in IoT devices. The input voltage to the module is nominally 3.3V DC. The operational ambient temperature of the module is -20 to 85 degree C. Only the embedded PCB antenna is allowed. Any other external antenna is prohibited. 3.Limited module procedures N/A 4.
6. Antenna Antenna type: PCB antenna; Antenna Gain: 0 dBi 7. Label and compliance information An exterior label on OEM’s end product can use wording such as the following: “Contains Transmitter Module FCC ID: 2AXDJ-EWBLED22” or “Contains FCC ID: 2AXDJ-EWBLED22” 8.
9. Additional testing, Part 15 Sub part B disclaimer The final host / module combination need to be evaluated against the FCC Part 15B criteria for unintentional radiators in order to be properly authorized for operation as a Part 15 digital device.
