1. Introduction
1.1 General DescriptionBL-M8812AU1 product is a highly integrated single-chip MIMO (Multiple In, Multiple Out) Wireless LAN (WLAN) USB 2.0/3.0 network interface controller complying with the wireless very high throughput IEEE 802.11ac Draft 2.0 and IEEE 802.11n specifications. The RTL8812AU provides a complete solution for a high-performance wireless client and also supports WiFi Direct feature that can easily build a WiFi P2P PAN network.

Figure 1 Top View Figure 2 Bottom View
1.2 Featuresl Operating Frequencies : 2.4~2.4835GHz and 5.15~5.85GHz
l Host Interface is USB 3.0, complies with USB 1.0/1.1/2.0
l IEEE Standards : IEEE 802.11a/b/g/n/ac
l Wireless data rate can reach up to 867Mbps
l Connect to external antenna through the IPEX connector
l Power Supply:5V±0.2V (3.3V Power Supply optional)
1.3 Applicationsl MID
l IP Camera
l STB
l Smart TV
l E-book
l Other devices which need to be supported by wireless network
2. Functional Block Diagram
Figure 3 BL-M8812AU1 block diagram
3. Product Technical Specifications 3.1 General SpecificationsItem | Description |
Product Name | BL-M8812AU1 |
Main Chip | RTL8812AU-CG |
Host Interface | USB 3.0 ( Backwards compatible with USB 2.0 ) |
IEEE Standards | IEEE 802.11a/b/g/n/ac |
Operating Frequencies | 2.4GHz~2.4835GHz /5.15~5.85Hz |
Modulation | 802.11b: CCK, DQPSK, DBPSK 802.11a/g: 64-QAM,16-QAM, QPSK, BPSK 802.11n: 64-QAM,16-QAM, QPSK, BPSK 802.11ac: 256-QAM,64-QAM,16-QAM, QPSK, BPSK |
Working Mode | Infrastructure, Ad-Hoc |
Wireless Data Rate | 802.11b: 1, 2 ,5.5,11Mbps 802.11a/g: 6,9,12,18,24,36,48,54Mbps 802.11n: HT20 reach up to144.4Mbps, HT40 reach up to300Mbps 802.11ac: VHT20 reach up to173.3Mbps, VHT40 reach up to400Mbps, VHT80 reach up to866.7Mbps |
Rx Sensitivity | -95dBm (Min) |
TX Power | 18.5dBm (Max) |
Antenna Type | Connect to external antenna through the IPEX connector |
Dimension(L*W*H) | 27.0*20.0*3.5mm (L*W*H) (Without PIN header) ,Tolerance: ±0.15mm |
Power Supply | 5V±0.2V (3.3V Power Supply optional) |
Power Consumption | Standby 163mA@5V (Max) TX mode 876 mA@5V (Max) |
Clock Source | 40MHz |
Working Temperature | -10°C to +50°C |
Storage Temperature | -40°C to +70°C |








ESD CAUTION: Although this module is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this module. It must be protected from ESD at all times and handled under the protection of ESD.

3.2 DC Power ConsumptionVcc=5V,Ta = 25 °C,unit: mA | ||||
Supply current | Typ. | Max | ||
Standby (RF disabled) | 142 | 163 | ||
| ||||
802.11b | 1Mbps | 11Mbps | ||
Supply current | Typ. | Max. | Typ. | Max. |
TX mode | 265 | 298 | 241 | 268 |
Rx mode | 168 | 198 | 164 | 190 |
802.11g | 6Mbps | 54Mbps | ||
Supply current | Typ. | Max. | Typ. | Max. |
TX mode | 273 | 318 | 171 | 298 |
Rx mode | 161 | 216 | 153 | 206 |
802.11n HT20 | MCS0 | MCS7 | ||
Supply current | Typ. | Max. | Typ. | Max. |
TX mode | 271 | 324 | 166 | 284 |
Rx mode | 150 | 186 | 131 | 174 |
802.11n HT40 | MCS0 | MCS7 | ||
Supply current | Typ. | Max. | Typ. | Max. |
TX mode | 256 | 292 | 156 | 278 |
Rx mode | 131 | 190 | 120 | 160 |
802.11a | 6Mbps | 54Mbps | ||
Supply current | Typ. | Max. | Typ. | Max. |
TX mode | 403 | 442 | 230 | 416 |
Rx mode | 144 | 192 | 147 | 180 |
802.11n HT40(5G) | MCS0 | MCS7 | ||
Supply current | Typ. | Max. | Typ. | Max. |
TX mode | 382 | 422 | 193 | 398 |
Rx mode | 158 | 190 | 157 | 204 |
802.11ac | MCS0 | MCS9 | ||
Supply current | Typ. | Max. | Typ. | Max. |
TX mode | 297 | 422 | 192 | 392 |
Rx mode | 162 | 202 | 168 | 206 |
2T2R |
| |||
802.11n HT40(2.4G) | MCS8 | MCS15 | ||
Supply current | Typ. | Max. | Typ. | Max. |
TX mode | 389 | 536 | 160 | 508 |
Rx mode | 142 | 170 | 143 | 172 |
802.11n HT40(5G) | MCS8 | MCS15 | ||
Supply current | Typ. | Max. | Typ. | Max. |
TX mode | 505 | 796 | 257 | 812 |
Rx mode | 151 | 182 | 149 | 190 |
802.11ac(5G) | NSS2-MCS0 | NSS2-MCS9 | ||
Supply current | Typ. | Max. | Typ. | Max. |
TX mode | 430 | 876 | 230 | 820 |
Rx mode | 153 | 184 | 158 | 198 |








3.3
RF 
SpecificationsTX Power | 2.4G: 802.11b:17±1.5dBm 802.11g/11n-HT20:15±1.5dBm 802.11n -HT40:15±1.5dBm 5G: 802.11a/11n-HT20:15±1.5dBm 802.11n-HT40:15±1.5dBm 802.11ac:14±1.5dBm
|
TX Constellation Error(EVM) | 2.4G: 802.11b: <-22dB@11Mbps 802.11g: <-28dB@54Mbps 802.11n-HT20: <-28dB@72.2Mbps 802.11n-HT40:< -28dB@150Mbps 5G: 802.11a: <-28dB@54Mbps 802.11n-HT20: <-28dB@72.2Mbps 802.11n-HT40: <-28dB@150Mbps 802.11ac:< -33dB@433Mbps |
Receiver Minimum Input Sensitivity@PER | 1Mbps: ; 11Mbps:; 54Mbps:-72dBm@PER<10%; 150Mbps:-67dBm@PER<10%; 300Mbps:-67dBm@PER<10%; 433Mbps:-61dBm@PER<10%; 867Mbps:-61dBm@PER<10%; |
RF Test Report | |||||||||||
PathA | |||||||||||
2.4G |
| ||||||||||
Mode | Rate(Mbps) | Power(dBm) | EVM(dB) | Sensitivity(dBm) | |||||||
CH1 | CH7 | CH13 | CH1 | CH7 | CH13 | CH1 | CH7 | CH13 | |||
11b | 1 | 16.57 | 16.63 | 17.20 | -29.12 | -29.59 | -29.20 | -94 | -94 | -94 | |
11 | 16.72 | 17.29 | 17.39 | -25.48 | -25.87 | -27.23 | -86 | -86 | -86 | ||
11g | 9 | 17.00 | 16.93 | 16.77 | -30.21 | -29.45 | -27.56 | -86 | -86 | -86 | |
54 | 15.66 | 15.62 | 15.56 | -33.50 | -33.62 | -34.08 | -72 | -72 | -72 | ||
Mode | Rate(Mbps) | Power(dBm) | EVM(dB) | Sensitivity(dBm) | |||||||
CH3 | CH7 | CH11 | CH3 | CH7 | CH11 | CH3 | CH7 | CH11 | |||
11n HT40 | MCS0 | 16.89 | 16.66 | 16.34 | -30.38 | -28.77 | -28.83 | -86 | -86 | -86 | |
MCS7 | 15.81 | 15.86 | 16.02 | -34.38 | -32.79 | -32.71 | -67 | -67 | -67 | ||
PathB | |||||||||||
Mode | Rate(Mbps) | Power(dBm) | EVM(dB) | Sensitivity(dBm) | |||||||
CH1 | CH7 | CH13 | CH1 | CH7 | CH13 | CH1 | CH7 | CH13 | |||
11b | 1 | 18.08 | 18.00 | 18.47 | -31.30 | -31.13 | -31.26 | -95 | -95 | -95 | |
11 | 17.61 | 17.42 | 17.31 | -27.12 | -24.66 | -27.40 | -87 | -87 | -87 | ||
11g | 9 | 17.28 | 17.35 | 17.19 | -30.66 | -29.17 | -28.73 | -87 | -87 | -87 | |
54 | 17.02 | 17.14 | 16.97 | -31.49 | -30.43 | -29.06 | -73 | -73 | -73 | ||
Mode | Rate(Mbps) | Power(dBm) | EVM(dB) | Sensitivity(dBm) | |||||||
CH3 | CH7 | CH11 | CH3 | CH7 | CH11 | CH3 | CH7 | CH11 | |||
11n HT40 | MCS0 | 16.89 | 16.66 | 16.34 | -30.38 | -28.77 | -28.83 | -87 | -87 | -87 | |
MCS7 | 15.81 | 15.86 | 16.02 | -34.38 | -32.79 | -32.71 | -68 | -68 | -68 | ||
RF Test Report | |||||||||||||
PathA | |||||||||||||
5G |
| ||||||||||||
Mode | Rate(Mbps) | Power(dBm) | EVM(dB) | Sensitivity(dBm) | |||||||||
CH 36 | CH 100 | CH 140 | CH 161 | CH 36 | CH100 | CH140 | CH161 | CH 36 | CH 100 | CH 140 | CH 161 | ||
11a | 9 | 15.30 | 16.14 | 16.19 | 16.31 | -27.84 | -32.52 | -33.34 | -33.28 | -90 | -90 | -90 | -90 |
54 | 15.33 | 16.88 | 16.83 | 16.68 | -29.87 | -30.96 | -33.85 | -31.28 | -73 | -73 | -73 | -73 | |
Mode | Rate(Mbps) | Power(dBm) | EVM(dB) | Sensitivity(dBm) | |||||||||
CH 38 | CH 102 | CH 142 | CH 159 | CH 38 | CH102 | CH142 | CH159 | CH 38 | CH 102 | CH 142 | CH 159 | ||
11n 40 | MCS0 | 16.11 | 16.02 | 17.21 | 17.03 | -24.35 | -30.70 | -33.41 | -33.59 | -86 | -85 | -86 | -86 |
MCS7 | 16.46 | 16.20 | 16.16 | 16.56 | -32.85 | -30.85 | -31.51 | -30.95 | -68 | -68 | -68 | -68 | |
Mode | Rate(Mbps) | Power(dBm) | EVM(dB) | Sensitivity(dBm) | |||||||||
CH 42 | CH 106 | CH 138 | CH 155 | CH 42 | CH106 | CH138 | CH155 | CH 42 | CH 106 | CH 138 | CH 155 | ||
11ac | MCS0 | 17.53 | 17.49 | 19.61 | 18.54 | -30.35 | -32.48 | -24.65 | -26.60 | -85 | -85 | -85 | -84 |
MCS9 | 15.43 | 16.12 | 16.92 | 15.81 | -34.62 | -31.56 | -32.37 | -34.27 | -62 | -62 | -62 | -61 | |
PathB | |||||||||||||
5G |
| ||||||||||||
Mode | Rate(Mbps) | Power(dBm) | EVM(dB) | Sensitivity(dBm) | |||||||||
CH 36 | CH 100 | CH 140 | CH 161 | CH 36 | CH100 | CH140 | CH161 | CH 36 | CH 100 | CH 140 | CH 161 | ||
11a | 9 | 16.21 | 16.22 | 16.83 | 16.80 | -31.93 | -32.01 | -31.63 | -31.67 | -90 | -89 | -89 | -89 |
54 | 16.74 | 17.34 | 17.05 | 16.95 | -31.56 | -33.15 | -34.84 | -35.11 | -73 | -73 | -73 | -73 | |
Mode | Rate(Mbps) | Power(dBm) | EVM(dB) | Sensitivity(dBm) | |||||||||
CH 38 | CH 102 | CH 142 | CH 159 | CH 38 | CH102 | CH142 | CH159 | CH 38 | CH 102 | CH 142 | CH 159 | ||
11n 40 | MCS0 | 16.83 | 16.77 | 18.41 | 16.95 | -29.89 | -32.41 | -29.12 | -31.08 | -86 | -86 | -86 | -86 |
MCS7 | 16.66 | 16.11 | 16.82 | 16.07 | -32.34 | -34.34 | -33.02 | -34.61 | -68 | -68 | -68 | -68 | |
Mode | Rate(Mbps) | Power(dBm) | EVM(dB) | Sensitivity(dBm) | |||||||||
CH 42 | CH 106 | CH 138 | CH 155 | CH 42 | CH106 | CH138 | CH155 | CH 42 | CH 106 | CH 138 | CH 155 | ||
11ac | MCS0 | 18.11 | 18.04 | 18.54 | 16.94 | -29.54 | -32.08 | -30.74 | -31.13 | -84 | -85 | -85 | -84 |
MCS9 | 16.45 | 16.92 | 16.59 | 16.59 | -34.25 | -35.97 | -30.22 | -34.65 | -62 | -62 | -62 | -62 | |







4. Pin Assignments
Figure 4 Pin Assignments (Top view)
The following signal type codes are used in the tables:
I:Input O:Output
O/D: Open Drain P:Power Pin
Pin No: | Pin Name | Type | Description |
1 | VDD | P | VDD 5V Power Supply (3.3V Power Supply optional) |
2 | SSTX+ | I | USB Transmitter Differential Pair |
3 | SSTX- | I | USB Transmitter Differential Pair |
4 | GND | P | Ground |
5 | SSRX+ | O | USB Receiver Differential Pair |
6 | SSRX- | O | USB Receiver Differential Pair |
7 | WPS | / | WPS Switch (high potential) |
8 | GND | P | Ground |
9 | DP | I/O | USB Transmitter/Receiver Differential Pair |
10 | DM | I/O | USB Transmitter/Receiver Differential Pair |
11 | VDD | P | VDD 5V |
12 | LED | / | External LED Control |




5. Application Information



5.1 Supported Platform Operating System | CPU Framework | Driver |
WINXP/WIN7/WIN8/WIN8.1/WIN10 | X86 Platform | Enable |
LINUX(Kernel 2.6.31~3.10) | ARM, MIPSII, X86 Platform | Enable |




5.2 Typical Application CircuitLED Circuit
WPS Circuit
RF reference circuit
Figure 5 Typical application circuit
NOTE:RF trace need to keep 50 ohm impedance.
USB differential pair need to keep 90ohm impedance.
Power supply pin 3.3V optional







6. Mechanical Specifications 
Module dimension: Typical ( L*W * H): 27.0mm*20.0mm*3.5mm Tolerance : +/-0.15mm
Figure 6 Module dimension




7. Others






7.1 Package Information
Figure 7 Package Information




7.2 Storage Temperature and Humidity1. Storage Condition: Moisture barrier bag must be stored under 30℃, humidity under 85% RH.
The calculated shelf life for the dry packed product shall be a 12 months from the bag seal date.
Humidity indicator cards must be blue, <30%.
2. Products require baking before mounting if humidity indicator cards reads > 30% temp < 30℃,
humidity < 70% RH, over 96 hours.
Baking condition: 125℃, 12 hours.
Baking times: 1 time.




7.3 Recommended Reflow ProfileReflow soldering shall be done according to the solder reflow profile,Typical Solder Reflow Profile is
illustrated in Figures 8. The peak temperature is 245℃.


Figure 8 Typical Solder Reflow Profile



