User manual of SWL-Q93T
1. Introduction
SWL-Q93T is a USB embedded module compliant with IEEE802.11n standard. The core
chipset is from Qualcomm, part number is AR9374X.
2. Hardware Architecture:
2.1 Main Chipset Information
Item
Vender
Part
number
MAC/BBP/Radio
Transceiver/PA
Qualcomm
AR
9374
X
3.3 Antennas Information
Two SMD antennas supporting both TX & RX.
4. Operational Description
SWL-Q93T 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.
