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 |
Vcc=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 Specifications
TX 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 Power Supply (3.3V Power Supply optional) |
12 | LED | / | External LED Control |
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 Circuit
LED 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 SpecificationsModule dimension: Typical ( L*W * H): 27.0mm*20.0mm*3.5mm Tolerance : +/-0.15mm
Figure 6 Module dimension
7. Others7.1 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