Samsung WDG720M Manual

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Manual For WDG720MSAMSUNG 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. IntroductionWDG720M is a USB embedded module compliant with IEEE802.11n standard.Thecore chipset is from MTK, part number is RT3572L.2. Operational DescriptionWDG720M is the 802.11a/b/g/n RF Module, that acts as a communication hub for users of awirelessdevice to connect to a wired LAN.MIMO typeProduct type: WLAN (11b mode: 1TX, 1RX, 11g mode: 1TX, 1RX, 11n mode: 2TX, 2RX)Time base of the transmission frequencyFor IF and RF frequency, Crystal is a clock reference.SynthesizerSynthesizer inside Transceiver. Internal voltage controlled oscillator (VCO) provides the desiredLOsignal base on the phase-locked loop (PLL) with a relatively wide tuning range for thisapplication.TransmissionBase-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 beconverted toanalog (TX IQ) signals through DAC in BBP IC, TX IQ pass through to low passfilter. TX I/Q signaluse direct conversion (zero-IF) architecture converter to generate carrierfrequency signal. TransceiverIC and internal PA magnify output power.

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