User's Manual

WD111
User Manual
2016-02-05
5
3. Specification
Model Number
WD111
Product Type
802.11n hosted IoE module
Memory Sizes
Flash: 2MB External to MCU, 512KB internal to MCU
96KB SRAM internal to MCU.
Host Interface(s)
4xUSART, 2xSPI, 3xI
2
C
Embedded MAC Address
Yes
WiFi Chip(s)
Qualcomm Atheros QCA4002
MCU
NXP LPC54
Package
40-pin QFN
Wireless Standard(s)
IEEE 802.11b/g/n
Spreading
IEEE 802.11b DSSS and 802.11g/n OFDM
Operating Frequency
2412~2484MHz ISM band
Antenna
One PIFA antenna and one on-board printed antenna.
Number of Channels
11 (US), 13 (EU), 14 (Japan)
Data Rates
802.11n: up to 135Mbps
802.11g: 54Mbps with fallback to 48, 36, 24, 18, 12, 9 and
6Mbps
802.11b: 11Mbps with fallback to 5.5, 1 and 1Mbps
Modulation Schemes
802.11g/n:
64QAM (up to 135Mbps),
16QAM (39/36/26/24Mbps),
QPSK (19.5/18/13/12Mbps),
BPSK (9/6.5/6Mbps)
802.11b:
CCK (11/5.5Mbps), DQPSK (2Mbps), DBPSK (1Mbps)
Tx Power (typical)
Rx Sensitivity (typical)
-90dBm for 1Mbps @ 8% PER
-82dBm for 11Mbps @ 8% PER
-72dBm for 54Mbps @ 10% PER
-67dBm for HT40, MCS7 @ 10% PER
Media Access Protocol
CSMA/CA with ACK
Supply Power
3.14V to 3.46V
Printed Ant. 22.76 dBm for 802.11b, 22.46 dBm for 802.11g, 22.89 dBm for 802.11n MCS0
(HT20), 17.76 dBm for 802.11n MCS0 (HT40). PIFA Ant.: 22.76 dBm for 802.11b, 22.46
dBm for 802.11g, 22.89 dBm for 802.11n MCS0 (HT20), 17.36 dBm 802.11n MCS0 (HT40).