SDIO 802.11ac WIFI + UART BT2.1/4.2 Combo
Module User Manual
Skylab M&C Technology Co., Ltd
Model No.: WG225
WG225 SDIO 802.11ac
| Document Information | |
| Title | WG225 SDIO 802.11ac WIFI + UART BT2.1/4.2 Combo Module Datasheet |
| Document type | Datasheet |
| Document number | SL-18040036 |
| Revision and date | V1.04 23-Jul-2018 |
| Disclosure restriction | Public |
This document applies to the following products：
| Product name | Type number | Product status |
| WG225 | WG225(09308) | Mass Production |
SKYLAB 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 SKYLAB is strictly prohibited.
The information contained herein is provided “as is” and SKYLAB 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 SKYLAB at any time. For most recent documents, visit www.skylab.com.cn.
Copyright © 2018, Skylab M&C Technology Co., Ltd.
SKYLAB® is a registered trademark of Skylab M&C Technology Co., Ltd in China.
WARNING:
Herby, Skylab M&C Technology Co., Ltd declares that this SDIO WIFI module， WG225 is in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU.
Use the WG225 in the environment with a temperature between -20℃ and +70℃,
This modular must be installed and operated with a minimum distance of 20cm between the radiator and the user body
General Description
The WG225 module is WLAN and Bluetooth combination solution to support 1 x 1 802.11 a/b/g/n/ac WLAN standards and BT 4.2 + HS, enabling seamless integration of WLAN/BT and low-energy technology. The module requires only an external 3.3V power supply.
The module is based on the single-chip RTL8821. It supports a low-power SDIO 3.0 interface for WLAN and a UART/PCM interface for BT.
Applications
- SDIO 2.4GHz/5GHz 802.11n WIFI
- SDIO 5GHz 802.11ac WIFI
- SDIO WIFI+ UART BT 2.1/4.2
Features
Wi-Fi
- 802.11 a/b/g/n/ac, up to 433.3 Mbps data rate.
- 1T1R WLAN for 5 GHz 802.11ac, or 2.4 GHz/5 GHz 802.11n WLAN applications.
- SDIO 3.0 interface for WLAN
Bluetooth
- Compliant with Bluetooth v2.1 + EDR
- Support Bluetooth 4.2 features
- Class-1, class-2, and class-3 transmitters without external power amplifier
- Enhanced power control
- Integrated internal Class 1,Class 2,and Class 3 PAs
- Support BT-WLAN coexistence
- RoHS compliance (Lead-free)
Module Pinout and Pin Description
Module Pinout
Pin Description
| Pin No. | Pin name | Description | Remark |
| 1 | GND | Ground | |
| 2 | WL BT ANT | RF port | |
| 3 | GND | Ground | |
| 4 | NC | NC | |
| 5 | NC | NC | |
| 6 | BT WAKE | HOST wake-up Bluetooth device | |
| 7 | BT HOST WAKE | Bluetooth device to wake up HOST | |
| 8 | NC | NC | |
| 9 | VDD | Main power voltage source input | IN:3.135-3.465V |
| 10 | NC | NC |
| 11 | NC | NC | |
| 12 | WL REG ON | This pin can externally shut down the module WLAN function, active low. | |
| 13 | WL HOST WAKE _ _ |
WLAN to wake up HOST | |
| 14 | SDIO DATA 2 | SDIO data line 2 | |
| 15 | SDIO DATA 3 | SDIO data line 3 | |
| 16 | SDIO DATA CMD | SDIO command line | |
| 17 | SDIO DATA CLK | SDIO clock line | |
| 18 | SDIO DATA 0 | SDIO data line 0 | |
| 19 | SDIO DATA 1 | SDIO data line 1 | |
| 20 | GND | Ground | |
| 21 | NC | NC | |
| 22 | VIDEO | I/O Voltage supply input | IN:1.8V or3.3V |
| 23 | NC | NC | |
| 24 | LPO | External Low Power Clock input (32.768KHz) | |
| 25 | PCM OUT | PCM Data output | |
| 26 | PCM CLK | PCM clock | |
| 27 | PCM IN | PCM data input | |
| 28 | PCM SYNC | PCM sync signal | |
| 29 | NC | NC | |
| 30 | NC | NC | |
| 31 | GND | Ground | |
| 32 | NC | NC | |
| 33 | GND | Ground | |
| 34 | BT REG ON | This pin can externally shut down the module BT function, active low. | |
| 35 | BAT EN | This pin can externally shut down the |
| module, active low. | |||
| 36 | GND | Ground | |
| 37 | NC | NC | |
| 38 | NC | NC | |
| 39 | NC | NC | |
| 40 | NC | NC | |
| 41 | UARTRTSN | Bluetooth/FM UART interface | |
| 42 | UARTTXD | Bluetooth/FM UART interface | |
| 43 | UARTRXD | Bluetooth/FM UART interface | |
| 44 | UARTCTSN | Bluetooth/FM UART interface |
PCB Footprint and Dimensions
Figure 5: WG225 PCB Footprint Dimensions
6. Electrical Characteristics
a) Absolute Maximum Ratings
| Parameter | Condition | Min. | Typ. | Max. | Unit |
| Storage Temperature Range | -40 | 135 | t | ||
| ESD Protection | VEST | / | 2000 | V | |
| Maximum RFID | +10 | dBm | |||
| Supply Voltage | VDD | 0 | 4.0 | V | |
| Supply Voltage | VIDEO | 0 | 4.0 | V | |
| Voltage On Any I/O Pin | 0. | VDD+0.3 | V |
Table7-1: Absolute Maximum Ratings
WG225 series modules are Electrostatic Sensitive Devices and require special precautions while handling.
ESD precautions
The WG225 module contains highly sensitive electronic circuitry and is an Electrostatic Sensitive Device (ESD).
Handling the WG225 module without proper ESD protection may destroy or damage them permanently.
The WG225 module is an electrostatic-sensitive device (ESD) and requires special ESD precautions typically applied to ESD-sensitive components. Proper ESD handling and packaging procedures must be applied throughout the processing, handling, transportation, and operation of any application that incorporates the WG225 module. Don’t touch the module by hand or solder with a non-anti-static soldering iron to avoid damage to the module.
b) Recommended Operation Ratings
| Parameter | Symbol | Min | Typ. | Max. | Unit |
| Operating Temperature Range | TA | -20 | 70 | `C | |
| Power Supply | VDD | 3. | 3. | 3. | V |
| Power Supply | VCC | 2. | 3. | 3. | V |
Table7-2: Operating Conditions
Performance Specification
| Hardware Features | |
| Model | WG225 |
| Antenna Type | PCB Pin |
| Chipset Solution | RTL8821 |
| Voltage | 3.3V+/-5% |
| Dimension(LxWxH) | 12.0mm*12.0mm*1.8mm |
| Wireless Features | |
| Wireless Standards | IEEE 802.11a/b/g/n/ac |
| Frequency Range | 2.412GHz–2.484GHz & 5.180GHz —5.825GHz |
| Data Rates | IEEE 802.1 lb : 1,2,5.5,11Mbps |
| IEEE 802.11g : 6,9,12,18,24,36,48,54Mbps | |
| IEEE 802.11n : MCSO–MCS7 @ HT20 /2.4GHz band | |
| MCSO–MCS7 @ HT40 /2.4GHz band | |
| MCSO–MCS9 @ HT40 /5GHz band | |
| IEEE 802.1 lac : MCSO–MCS9 @ VHT80 /5GHz band | |
| Receiver Sensitivity | VHT80 MCS9 : -53dBm@10% PER(MCS9) /5GHz band |
| HT40 MCS9 : -60dBm@10% PER(MCS9)/5GHz band | |
| HT40 MCS7 : -65dBm@10% PER(MCS7) /2.4GHz band | |
| HT20 MCS7 : -66dBm@10% PER(MCS7) /2.4GHz band | |
| 54M: -71dBm@10% PER | |
| 11 M: -83dBm@ 8% PER | |
| Modulation Technique | DSSS (DBPSK, DQPSK, CCK) |
| OFDM (BPSK, QPSK, 16-QAM, 64-QAM, 125-QAM, 256-QAM) | |
| Wireless Security | WPAMPA2, WEP, TKIP and AES, WPS2.0, WAPI |
| Transmit Power | IEEE 802.1 lac: 11+ 1.5dBm @HT80 MCS9 /5GHz band |
| IEEE 802.1 lac: 13±1.5dBm @HT80 MCSO /5GHz band | |
| IEEE 802.11n: 12±1.5dBm @HT20/40 MCS7 /5GHz band | |
| IEEE 802.11n: 14±1.5dBm @HT20/40 MCSO /5GHz band | |
| IEEE 802.11n: 14±2dBm @HT20/40 MCS7 /2.4GHz band | |
| IEEE 802.11g: 16±2dBm @54Mbps | |
| IEEE 802.11b: 18±2dBm @11Mbps | |
| Others | |
| Certification | RoHS |
| Environment | Operating Temperature: -20°C-70°C |
| Storage Temperature: -40°C-135°C | |
| Operating Humidity: 10%~90% non-condensing | |
| Storage Humidity: 5%~90% non-condensing |
Packaging Specification
WG225 modules are shipped in reel and with 1200 units per reel. Each tray is a ‘dry’ package.
Figure 6: WG225 Packaging
Manufacturing Process Recommendations
Note： The final soldering temperature chosen at the factory depends on additional external factors like choice of soldering paste， size， thickness and properties of the baseboard， etc. Exceeding the maximum soldering temperature in the recommended soldering profile may permanently damage the module.
Ordering Information
| Module No. | Antenna Connector Type |
| WG225 | PCB PIN |
Reversion History
| Revision | Description | Approved | Date |
| V1.01 | Initial Release | George He | 2018.04.10 |
| V1.02 | Update Wireless Features | George He | 2018.05.28 |
| V1.03 | Update PCB Footprint Dimensions | George He | 2018.05.20 |
| V1.04 | Adding Packaging Specification | George He | 2018.07.23 |
Contact Information
Skylab M&C Technology Co., Ltd.
Address: 6 Floor, No.9 Building, Lijincheng Scientific & Technical Park, Gongye East Road,
Longhua District, Shenzhen, Guangdong, China
Phone: 86-755 8340 8210（Sales Support）
Phone: 86-755 8340 8510（Technical Support）
Fax: 86-755-8340 8560
E-Mail: technicalsupport@skylab.com.cn
Website: www.skylab.com.cn www.skylabmodule.com
FCC Statement
FCC standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 and FCC CFR Title 47
Part 15 Subpart E Section 15.407: 2016
External antenna with gain BT/BLE/2.4GWifi: 2dBi 5G Wifi: 4dBi
FCC Regulatory Compliance:
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.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
If power exceeds the limit and the distance(Over 20cm distance in actual use between the device and user) is in compliance with the requirement
RF Exposure Compliance:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and any part of your body.
Notice to OEM integrator
If the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. The end product shall have the words “Contains Transmitter Module FCC ID: 2ACOE-WG225”.
The device must be professionally installed.
The intended use is generally not for the general public. It is generally for industry/
commercial use.
The connector is within the transmitter enclosure and can only be accessed by disassembly of the transmitter which is not normally required. The user has no access to the connector.
Installation must be controlled. Installation requires special training.
Any company of the host device which installs this modular with unlimited modular approval should perform the test of radiated & conducted emission and spurious emission, etc.
according to FCC part 15C: 15.407 and15.203 & 15.207, 15B Class B requirement, only if the tests result complies with FCC part 15C: 15.407 and 15.203 & 15.207, 15B Class B
requirement, then the host can be sole legally.
When the module is installed inside another device, the user manual of the hose contains below
1) This device may not cause harmful interference.
2) This device must accept any interference received, including interference that may cause undesired operation.
Documents / Resources
 |
SKYLAB WG225 Combo Module [pdf] User Manual WG225, 2ACOE-WG225, 2ACOEWG225, WG225 Combo Module, WG225, Combo Module |
