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The SKW77 is a highly power wifi module, it compliant to 802.11 b/g/n Wi-Fi Solution for highly performance WLAN requiring up to +27dBm output power. The module requiring a external 3.3V power supply and a external 5.0V power supply . The module based on the single chip MT7620A which integrates an 802.11n 2x2 MAC/BB/radio. It supports 802.11n operations up to 144 Mbps for 20 MHz and 300 Mbps for 40 MHz channel respectively, and IEEE 802.11b/g data rates. The module support bridge mode and AP client mode and router mode.



Features
Transmit power up to +28dBm.
IEEE 802.11b/g/n 2x2 300Mbps WLANs.
DDR2 memory up to 512Mb
Flash memory up to 64Mb
2 LAN ports and 1 WAN port
Support USB 2.0 host device
Support SD card.
Support Bridge/AP Client/Router mode
Security: WEP 64/128, WPA, WPA2, TKIP, AES, WAPI
RoHS compliance meets environment-friendly requirement
59(L) x 28.9(W) x 9.0(H) mm small dimension
Applications
Wireless industrial data transmission over a long distance
Wireless remote video monitoring
Wireless remote data storage
Wireless remote data sharing
Home Gateways
High power router
| Hardware Features | |
| Model | SKW77 |
| Antenna Type | IPEX connector |
| Chipset solution | MT7620A |
| Voltage | 3.0-3.6V for VDD_3.3V, |
| 4.5-5.5V for VDD_5.0V | |
| Dimentions(L×W) | 59mm*28.9mm |
| Wireless Features | |
| Wireless Standards | IEEE 802.11n, IEEE 802.11g, IEEE 802.11b |
| Frequency Range | 2.400GHz---2.4835GHz |
| Data Rates | IEEE 802.11 b Standard Mode: 1,2,5.5,11Mbps |
| IEEE 802.11g Standard Mode: 6,9,12,18,24,36,48,54Mbps | |
| IEEE 802.11n : 130Mbps @ HT20 | |
| 300Mbps @ HT40 | |
| Receiver Sensitivity | HT40 MCS7 : -67dBm@10% PER(MCS7) |
| HT20 MCS7 : -73dBm@10% PER(MCS7) | |
| 54M: -76dBm@10% PER | |
| 11M: -91dBm@ 8% PER | |
| Modulation Technique | 802.11 Legacy b/g |
| DSSS (DBPSK, DQPSK, CCK) | |
| OFDM (BPSK, QPSK, 16-QAM, 64-QAM) | |
| Wireless Security | WPA/WPA2, WEP, TKIP, and AES |
| Transmit Power | IEEE 802.11n: 25dBm @HT40 MCS7 |
| 25dBm@HT20 MCS7 | |
| IEEE 802.11g: 27dBm | |
| IEEE 802.11b: 28dBm | |
| Work Mode | Router/AP/Repeater |
| Others | |
| Certification | CE, FCC, RoHS |
| Power Consumption@25°C | Status:Average/mA MAX/mA |
| Continuous Tx @VDD_5.0 1300@+27dBm 1600 | |
| Continuous Tx @VDD_3.3V 270@+28dBm 300 | |
| Note: 1)5.0 V power supply is recommended to use 2A DC-DC regulator; 3.3 V power supply is recommended to use 500mA DC-DC regulator. 2)The maximum current consumption would be impacted by radiation environment and the driver mechanism | |
| Environment | Operating Temperature: -20℃~70℃ |
| Storage Temperature: -40℃~125℃ | |
| Operating Humidity: 10%~90% non-condensing | |
| Storage Humidity: 5%~90% non-condensing | |
Application Block Diagram



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