MediaTek MT7976CN is an IEEE WiFi 6 MIMO RF chip that includes a 2.4 GHz Wi-Fi transceiver front end and a 5 GHz Wi-Fi transceiver front end in a DRQFN package. The simplified block diagram and MT7976CN are used in Figure 1-1. The top-level control logic controls each subsystem independently. Each subsystem also has dedicated LDOs. A thermal sensor and a low-speed ADC (analog-to-digital converter) are provided to monitor the temperature changes of the MT7976CN. MT7976CN has its own dedicated crystal oscillator (XO) circuit. In addition, the XO circuitry provides an external clock source for the other chips in the platform. The transceiver front end is located on the MT7976CN, while the ADC/DAC (analog-to-digital converter/digital-to-analog converter) is located in the companion modem chip. Interface driver/receiver buffers are designed to drive PCB trace loading.


Figure 1-1 MT7976CN block diagram features MT7976CN is an IEEE WiFi 6 MIMO RF chip that includes a 2.4 GHz WI-Fi transceiver front end and a 5 GHz Wi-Fi transceiver front end in a DRQFN package. Wi-Fi transceivers Wi-Fi Dual-band (2.4GHz and 5GHz) MIMO 802.11 a/b/g/n/ac/ax RF with 20/40/80/160MHz bandwidth MIMO configuration: 3x3 MIMO A-band + 2x2 MIMO G-band, Integrated 2.4GHz/5GHz PA, LNA, and TRSW. Integrated power detector to support per-packet Tx power control Built-in PVT change calibration Configurable Wi-Fi 2.4/5GHz PA enables higher efficiency in low-power applications. Supports external PA and LNA for WiFi-2.4GHz and WiFi-5GHz. Pin layout MT7976CN is available in a DRQFN package measuring 12.5mm x 10mm.

Figure 2-1 MT7976CN Pin Definition IO Definitions The definitions of IO used in Table 2-1 are listed below.

Device physical dimensions/part number MT7976CN is available in a DRQFN package. Figure 5-1 shows the physical dimensions. Figure 5-1 MT7976CN Physical dimensions



MT7976CN bottom view