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Manual For WDG720M

SAMSUNG ELECTRONICS CO., Ltd.

Wi-Fi module(2.4GHz, 5GHz, a/b/g/n)

- Model name : WDG720M

- Operation Temperature : -10℃ ~ +70℃

- Power : +5V ±5% (+4.75V ~ +5.25V)

1. Introduction

WDG720M is a USB embedded module compliant with IEEE802.11n standard.

Thecore chipset is from MTK, part number is RT3572L.

2. Operational Description

WDG720M is the 802.11a/b/g/n RF Module, that acts as a communication hub for users of a

wirelessdevice to connect to a wired LAN.

MIMO type

Product type: WLAN (11b mode: 1TX, 1RX, 11g mode: 1TX, 1RX, 11n mode: 2TX, 2RX)

Time base of the transmission frequency

For IF and RF frequency, Crystal is a clock reference.

Synthesizer

Synthesizer inside Transceiver. Internal voltage controlled oscillator (VCO) provides the desired

LOsignal base on the phase-locked loop (PLL) with a relatively wide tuning range for this

application.

Transmission

Base-band Processing (BBP) IC has DSSS (BPSK/QPSK/CCK) and OFDM

(BPSK/QPSK/16QAM/64QAM) modulation function, it provides transmission data rate are 1, 2,

5.5, 11Mbps on DSSS and 6, 12, 18, 24, 36, 48, 54 Mbps on OFDM. Digital data signal will be

converted toanalog (TX IQ) signals through DAC in BBP IC, TX IQ pass through to low pass

filter. TX I/Q signaluse direct conversion (zero-IF) architecture converter to generate carrier

frequency signal. TransceiverIC and internal PA magnify output power.

Summary of content (4 pages)

PAGE 1
Manual For WDG720M SAMSUNG ELECTRONICS CO., Ltd. Wi-Fi module(2.4GHz, 5GHz, a/b/g/n) - Model name : WDG720M - Operation Temperature : -10℃ ~ +70℃ - Power : +5V ±5% (+4.75V ~ +5.25V) 1. Introduction WDG720M is a USB embedded module compliant with IEEE802.11n standard. Thecore chipset is from MTK, part number is RT3572L. 2. Operational Description WDG720M is the 802.11a/b/g/n RF Module, that acts as a communication hub for users of a wirelessdevice to connect to a wired LAN.
PAGE 2
Receiver Reverse direction isolation of LNA inside Transceiver IC suppresses unwanted radiation. Then RFsignal will bedirectly down to IF signal (RX IQ) and high frequency spurious emissions are suppressed by LPF. Atlast RX IQ signal will be demodulated digital data. Base band Processing 1. Channel selection is controlled by BBP IC to support data modulation: - DSSS (BPSK/QPSK/CCK) - OFDM (BPSK/QPSK/16QAM/64QAM) Power Control Level It uses closed-loop power control function to limit RF output power level.
PAGE 3
Approval Statement CE Statement Hereby, we declare that this device is in compliance with the essential requirements and other relevant provisions of directive 1999/5/EC. FCC approval This device complies with Part 15 of the FCC`s Rules. Operation is subject to the following two Conditions: 1. This device may not cause harmful interference, and 2. This device must accept any interference received, including interference that may cause undesirable operation.
PAGE 4
IMPORTANT NOTE This device complies with FCC & IC radiation exposure limits set forth for an uncontrolled environment. This device should be installed and must not be co-located or operating in conjunction with any other antenna or transmitter. This device is intended only for OEM integrators under the following conditions: 1) This module may not be co-located with any other transmitters or antennas. 2) The antenna must be installed such that 20cm is maintained between the antenna and users.