LG LCWB-002 Manual de usuario
USER MANUAL
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Table of Contents
No Description Page
1 Features 3
2 Block Diagram 3
3 Absolute Maximum Ratings 4
4 Operating Test Conditions 4
5 Electrical Characteristics 5
6 Pin Description 9
7 Outline Drawing 10
USER MANUAL
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1. Features
LCWB-002 is the module for IEEE 802.11b/g/n wireless LAN + BLE4.2 + MCU.
LCWB-002 is based on Realtek RTL8720CM solution.
IEEE 802.11 b/g/n HT20 single band WLAN infra-structure
Bluetooth Low Energy 4.2 (BLE4.2)
Size : 20 mm x 45 mm x 7.9 mm
Auto-calibration (RF, Crystal)
Data rates up to 72.2Mbps PHY rate
SPI interface
Integrated IPv4/IPv6 TCP/IP stack
Integrated Network services such as HTTP, DNS, FTP
Security : WFA, WPA, WPA2, WEP, WAPI, TKIP
Application : Home Appliance
2. Block Diagram
RTL8720CM
Interface
Block
MCU
(Real M300)
Clock (40MHz)
ANT
ROM 384KB
DC-DC converter 5V / 12V
3.3V
802.11 b/g/n
BLE4.2
MAC/BB Flash
Memory
(8MB)
RAM 256KB
PMU
SPI
JTAG
LDO
3.3V1.8V
pSRAM 4MB
USER MANUAL
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Parameter Min Max Unit
Storage Temperature -40 +100 ℃
Storage Humidity (@ 40℃)-90 %
Caution : The specifications above the Table define levels at which permanent damage
to the device can occur. Function operation is not guaranteed under these conditions.
Operating at absolute maximum conditions for extend periods can adversely affect the
long-term reliability of the device.
•Other conditions
1) Do not use or store modules in the corrosive atmosphere, especially where chloride
gas, sulfide gas, acid, alkali, salt or the like are contained
Also, avoid exposure to moisture
2) Store the modules where the temperature
and relative humidity do not exceed 5 to 40℃and 20 to 60%
3) Assemble the modules within 6 months
Check the soldering ability in case of 6 months over
3. Absolute Maximum Ratings
Parameter Min Typ Max Unit
Operating Temperature 0 - +85 ℃
Operating Humidity (40℃)- - 85 %
Supply Voltage
4.5 5.0 5.5
Vdc
10.8 12 13.2
4. Operating Test Conditions
1) Test condition : AP connection Ping test mode(not continuous Tx and T-Put mode)
USER MANUAL
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Items Contents
Specification IEEE802.11b
Mode DSSS / CCK
Channel frequency 2400 ~ 2483MHz
Data rate 1, 2, 5.5, 11Mbps
TX Characteristics Min. Typ. Max. Unit
Power Level 14 17 20 dBm
Spectrum Mask
1st side lobes ( to fc ±11MHz) - - -30 dBr
2nd side lobes ( to fc ±22MHz) - - -50 dBr
Modulation Accuracy (EVM) - - 35 %
Power On/Off ramp - - 2.0 usec
Freq. Tolerance -25 -25 ppm
Chip Clock Freq. Tolerance -25 -25 ppm
RX Characteristics Min. Typ. Max. Unit
Minimum Input Level Sens. (FER ≤ 8%) - - -76 dBm
Maximum Input Level (FER ≤ 8%) -10 - - dBm
5. Electrical Characteristics
5-1. RF Characteristics for IEEE802.11b (11Mbps mode unless otherwise specified)
* Normal Condition : 25℃, VDD=5V.
* RF characteristics is board limit. It can differ according to standards
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Items Contents
Specification IEEE802.11g
Mode OFDM
Channel frequency 2400 ~ 2483MHz
Data rate 6, 9, 12, 18, 24, 36, 48, 54Mbps
TX Characteristics Min. Typ. Max. Unit
Power Level 12 15 18 dBm
Spectrum Mask
at fc ±11MHz - - -20 dBr
at fc ±20MHz - - -28 dBr
at fc ≥ ±30MHz - - -40 dBr
Constellation Error (EVM) - - -25 dB
Freq. Tolerance -20 -20 ppm
Chip Clock Freq. Tolerance -20 -20 ppm
RX Characteristics Min. Typ. Max. Unit
Minimum Input Level Sens. (PER ≤ 10%) - - -65 dBm
Maximum Input Level (PER ≤ 10%) -20 - - dBm
5-2. RF Characteristics for IEEE802.11g (54Mbps mode unless otherwise specified)
* Normal Condition : 25℃, VDD=5V.
* RF characteristics is board limit. It can differ according to standards
USER MANUAL
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5-3. RF Characteristics for IEEE802.11gn (MCS7 mode unless otherwise specified)
* Normal Condition : 25℃, VDD=5V.
* RF characteristics is board limit. It can differ according to standards
Items Contents
Specification IEEE802.11n –2.4GHz
Mode OFDM
Channel frequency 2400 ~ 2483MHz
Data rate 6.5, 13, 19.5, 26, 39, 52, 58.5, 65Mbps
TX Characteristics Min. Typ. Max. Unit
Power Level (HT20 : MCS7) 11 14 17 dBm
Spectrum Mask (HT20)
at fc ±11MHz - - -20 dBr
at fc ±20MHz - - -28 dBr
at fc ±30MHz - - -40 dBr
Constellation Error (EVM) - - -28 dB
Freq. Tolerance -20 -20 ppm
Chip Clock Freq. Tolerance -20 -20 ppm
RX Characteristics Min. Typ. Max. Unit
Minimum Input Level Sens.
(HT20,PER ≤ 10%) - - -64 dBm
Maximum Input Level (PER ≤ 10%) -20 - - dBm
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5-4. RF Characteristics for BLE
* Normal Condition : 25℃, VDD=5V.
* RF characteristics is board limit. It can differ according to standards
TX characteristics Min. Typ. Max. Unit
Power level 1.5 4.5 7.5 dBm
Adjacent channel transmit power
@ F = F0 ±1MHz - - 0 dBr
@ F = F0 ±2MHz - - -30 dBr
@ F = F0 ±3MHz - - -40 dBr
@ F > F0 ±3MHz - - -40 dBr
Modulation characteristics –Frequency derivation
ΔF1AVG 140 -175 KHz
ΔF2MAX 115 - - KHz
ΔF2MAX / ΔF1AVG 80 - - %
RX characteristics Min. Typ. Max. Unit
Min. input level (BER ≤ 0.1%) - - -84 dBm
Max. input level (BER ≤ 0.1%) -20 - - dBm
USER MANUAL
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6. Pin Description
Pin No. Pin Name
1VDD
2 MODE
3 SPI_SCL
4 SPI_CSN
5 SPI_MISO
6 SPI_MOSI
7 STATUS
8 GND
< Top side > < Bottom side >
< Top side >
①
⑧
USER MANUAL
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7. Outline Drawing
Kap soul Lee
'21. 06. 22
Jae kil Jung
Seok dong Choi
'21. 06. 22
'21. 06. 22
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