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, 11
n 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.
Transceiver
IC and internal PA magnify output power.
