7
4
Hardware Function Description
This chapter mainly describes the main hardware functions of this product, including
4G, WIFI/BT, audio, display, camera,and,NFC.
4.1
EG95-NAX 4G Module
EG95-NAX provides data connectivity on LTE-FDD networks. Its frequency bands
include LTE-FDD (B2/B4/B5/B12/B13/B25/B26). It has two antennas: main antenna
and Rx-diversity antenna.
4.2
WIFI/BT
The wireless module inside the tablet complies with IEEE 802.11 a/b/g/n/ac standard
and it can achieve up to a speed of 433.3 Mbps with single stream in 802.11ac conn-
ect to the wireless LAN. The integrated module provides SDIO interface for Wi-Fi,
and UART interface for Bluetooth.
Features:
●
TX and RX low-density parity check (LDPC) support for improved range and
power efficiency.
●
Single-stream spatial multiplexing up to 433.3 Mbps data rate.
●
Supports 20, 40, 80 MHz channels with optional SGI (256 QAM modulation).
●
Supports standard SDIO v3.0, compatible with SDIO v2.0 HOST interfaces.
●
BT host digital interface:
-HCI UART (up to 4 Mbps),
-PCM for audio data.
●
Simultaneous BT/WLAN receive with single antenna.
●
Complies with Bluetooth Core Specification Version 5.0 with provisions for
supporting future specifications. With Bluetooth Class 1 or Class2 transmitter
operation.
●
Supports extended synchronous connections (eSCO), for enhanced voice
quality by allowing for retransmission of dropped packets.
●
Adaptive frequency hopping (AFH) for reducing radio frequency interference.
A simplified block diagram of the module is depicted in the figure.
