WiFi 6E 2T2R Dual Bands Dual Concurrents DBDC mPCIe Card 1800 IEEE802.11ax / ac / a / b / g / n 2.4G / 5GHz MT7915 AW7915-NPD

Description

AW7915-NPD is a WiFi 6E 11ax 2T2R 1800Mbps mini PCIe Module by MT7915DAN

Certificated:

CE, FCC ID: TKZAW7915-NPD; IC ID: 9968A-AW7915NPD; NCC: CCAF22Y10240T1

AW7915-NPD is a WiFi 6E Mini PCIe Module 2T2R (in circuit 4 RF outputs 2×2.4GHz, 2x5GHz, 2 radios in driver) 2 x dual bands RF connectors based on Mediatek MT7915DAN which is a WiFi Mini PCIe single chip which supports 1800 Mbps (573+1201) PHY rate with  PCIe2.1. It fully complies with IEEE 802.11ax/ac and IEEE 802.11 ac/a/b/g/n standards, offering feature-rich wireless connectivity at high standards, and delivering reliable, cost-effective throughput from an extended distance.

AW7915-NPD is with 4T4R RF outputs in circuit too. Due to 2.4GHz and 5GHz can be combined in one RF output. So 1×2.4GHz and 1x5GHz are combined to 1x(dual bands). Total are 2x(dual bands) outputs.

In Linux “ifconfig” command, you can see two radios, ra0 and rai0, means you can have two radios in the meantime and dual bands dual concurrents.

Optimized RF architecture and base band algorithms provide superb performance and low power consumption. Intelligent MAC design deploys a high efficient offload engine and hardware data processing accelerators which completely offloads Wi-Fi task of the host processor. MT7915DAN is designed to support standard based features in the areas of security, quality of service and international regulations, giving end users the greatest performance any time and in any circumstance.

MT7915DAN is designed to support high data throughput over WiFi. The host interface PCIe are integrated to provide stable bandwidth between the host platform and MT7915DAN.

Deep sleep mode:

Multiple power domains are implement on chip. In deep sleep mode, the PMU could be configured in a low power state to save the power consumption.

Two CPU systems: There are both 32-bits RISC MCU subsystem. The CPU has its local memory. There are several options of clock frequency to provide the optimal performance with the best power consumption. The 32-bit RISC MCU is used to do clocck control, power management, and host interface configuration. PDMA (packet DMA) engines are integrated to support on-the-fly data buffer management.

MT7915AN had the WiFi MAC and BBP subsystem and use with MT7975DN together, which provide the best-in-class radio and low power performance. And the Wi-Fi MAC and BBP subsystem and use with MT7975DN together, which provide the best-in-class radio and low power performance.

With the advent of 802.11ax/ac, multi-user MIMO (MU-MIMO) is defined. MT7915DAN supports MU-MIMO with different configurations.

MT7915DAN Block Diagram

Compatible with:

• openwrt
• linux

Attention: Not supported by pfSense and OPNsense

Features:

• 2T2R in 2.4G+2T2R in 5G with support of up to 573+1201Mbps PHY rate
• Supports 20, 40, 80 channels
• HE MCS0-11 BW20/40/80MHz with Nss=1~2
• Short Guard Interval
• Space-time block code (STBC)
• Low Density Partiy check (LDPC)
• Support digital pre-distortion to enhance PA performance
• Smoothing (channel estimation) extension to MIMO case
• DFS radar detection
• Embedded ARM Cortex R4 processor for full host CPU offload
• Embedded 32-bit RISC microprocessor
• Support STBC, LDPC, TX Beamformer and RX Beamformee
  Decoded BW20/40/80 up to 4×2 MU materix feedback
• Greenfield, mixed mode, legacy modes support
• Highly integrated RF with 40nm low power process
• Noise mitigation:
  • Supports background scan function for fast channel switching
  • Supports spectrum analysis for non-Wi-Fi signals
• Intelligent power saving
• WFA WMM, WMM PS (QoS)
• Integrate high efficiency internal 4G/5G PAs
• Intelligent Calibration (iCal) reduces the production time
• Integrate high efficiency internal 4G/5G PAs

Specification:

Power consumption maximum is 9W, average is 4 – 8W.
Main board Power Supply design please provide 3.3V 3A, minimum 3.3V 2.5A.