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User manual of WiDT30Q
1. Introduction
WiDT30Q is a USB embedded module compliant with IEEE802.11n standard. The
core chipset is from Qualcomm, part number is AR1021X.
2. Hardware Architecture:
2.1 Main Chipset Information
Item
Vender
Part number
MAC/BBP/Radio Transceiver/PA
Qualcomm
AR1021X
3.3 Antennas Information
Two SMD antennas supporting both TX & RX.
4. Operational Description
WiDT30Q is the 802.11a/b/g/n RF Module, that acts as a communication hub for users of a
wireless device to connect to a wired LAN.
MIMO type
Product type: WLAN
(11b mode:
1TX, 1RX,
11g mode:
1TX, 1RX,
Draft 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
LO signal 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, 11 Mbps on DSSS and 6, 12, 18, 24, 36, 48, 54 Mbps on OFDM. Digital data signal will be
converted to analog (TX IQ) signals through DAC in
BBP
IC, TX IQ pass through to low pass
filter. TX I/Q signal use direct conversion (zero-IF) architecture converter to generate carrier
frequency signal.
Transceiver
IC and internal PA magnify output power.

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Summary of Contents for Samsung WiDT30Q

  • Page 1 3.3 Antennas Information Two SMD antennas supporting both TX & RX. 4. Operational Description WiDT30Q is the 802.11a/b/g/n RF Module, that acts as a communication hub for users of a wireless device to connect to a wired LAN. MIMO type...
  • Page 2 Receiver Reverse direction isolation of LNA inside Transceiver IC suppresses unwanted radiation. Then RF signal will be directly down to IF signal (RX IQ) and high frequency spurious emissions are suppressed by LPF. At last RX IQ signal will be demodulated digital data. Base band Processing 1.
  • Page 3 Modulation modes 5. Notice FCC Statement Federal Communication Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 4: Important Note

    This device complies with Part 15 of the FCC 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 undesired operation.
  • Page 5 complies with Part 15 of FCC 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 undesired operation. IC Statement This Class B digital apparatus complies with Canadian ICES-003.
  • Page 6 (2) this device must accept any interference received, including interference that may cause undesired operation. LABEL OF THE END PRODUCT: The final end product must be labeled in a visible area with the following " Contains TX IC : 649E-WIDT30Q ".