User's Manual

FN-LINK TECHNOLOGY LIMITED
http://www.fn-link.com Page 4/14 3/27/2014
1. Introduction
F89ESSM23 is a highly integrated and excellent performance Wireless LAN (WLAN) SDIO
network interface device. High-speed wireless connection up to 150 Mbps .
1.1 Overview
The general hardware for the module is shown in Figure 1. This WLAN Module design is based
on Realtek RTL8189ES. It is a highly integrated single-chip 1*1 MIMO (Multiple In Multiple Out)
Wireless LAN (WLAN) SDIO network interface controller complying with the 802.11n
specification. It combines a MAC, a 1T1R capable baseband, and RF in a single chip. It is
designed to provide excellent performance with low power Consumption and enhance the
advantages of robust system and cost-effective.
Figure 1: Single-brand 11n (1*1) solution
1.2 Specification Reference
This specification is based on additional references listed as below.
iEEE 802.11b
iEEE 802.11g
iEEE 802.11n