BroadLink BL3383-P User manual

World’s leading smart home solution provider
Features
100MHz 32bits MCU
256KB SRAM/2MB FLASH
Support AES, MD5, SHA1
Support XIP
Working voltage: DC 3.3V
Support BLE4.2
Wi-Fi related features
Support 802.11 b/g/n standard
Support station and soft AP
Support SmartConfig and AP
configuration
Support WEP/WPA2
Support multiple cloud services
Integrated balun/PA/LNA
TCP/IP stack optimized for IoT
application
PCB antenna
Peripherals:
 3x UART
1x SPI
8x PWM
Up to 13GPIOs
Working temperature: 0℃to +85℃
Stamp style SMD for surface mounting
production
Applications
Smart transportation
Smart home / appliances
Instruments
Health care
Industrial automation
Intelligent security
Smart energy
Model
Model
Antenna type
Note
BL3383-P
PCB antenna
Default
Embedded Wi-Fi Module
Version：1.1 Release date：May 06, 2021
BL3383-P
Product
Manual

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Content
1. Overview............................................................................................................................ - 3 -
2. Basic Specifications............................................................................................................ - 3 -
2.1. Power Consumption................................................................................................... - 3 -
2.2. Working Environment ................................................................................................ - 4 -
3. Radio Specifications........................................................................................................... - 4 -
3.1. Basic Radio Specification............................................................................................ - 4 -
3.2. Radio Performance..................................................................................................... - 5 -
3.2.1 IEEE802.11b.......................................................................................................... - 5 -
3.2.2 IEEE802.11g .......................................................................................................... - 6 -
3.2.3 IEEE802.11n.................................................................................................... - 6 -
4. BL3383-P Hardware Information....................................................................................... - 7 -
4.1. PIN Sequence.............................................................................................................. - 7 -
4.2. PIN Definitions............................................................................................................ - 8 -
4.3 Recommendations....................................................................................................... - 9 -
4.4. Mechanical Dimensions............................................................................................ - 10 -
4.5. Recommended Pad Size ........................................................................................... - 11 -
4.6. Certifications ............................................................................................................ - 11 -
4.7. Label ......................................................................................................................... - 12 -
4.7. Mechanical Dimensions............................................................................................ - 12 -
4.8. Packaging.................................................................................................................. - 13 -
5. Reference Design............................................................................................................. - 14 -
5.1. UART Interface Design.............................................................................................. - 14 -
5.2. Power Supply Requirement...................................................................................... - 16 -
Revision History................................................................................................................... - 20 -
Copyrights............................................................................................................................ - 20 -
Contact Us ........................................................................................................................... - 20 -

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1. Overview
BL3383-P is a cost-effective embedded Wi-Fi module designed by BroadLink, highly integrated
with 32-bit MCU speed up to 100MHz, 256KB SRAM and 2MB flash, with 3.3V power supply.
The module integrates radio transceiver, MAC, baseband, all Wi-Fi protocols, configurations and
network stack. It can be widely used in applications like smart home devices, remote monitoring
devices and medical care instruments.
2. Basic Specifications
2.1. Power Consumption
Please refer to Table 1 for power consumption data.
Table 1 BL3383-P Power Consumption Data
Specifications
Min.
Typ.
Max.
Units
VDD
3.0
3.3
3.6
V
VIL(input low voltage)
0.8
V
VIH(input high voltage)
2.0
3.6
V
VOL(output low voltage)
0.4
V
VOH(output high voltage)
2.4
3.6
V
Standby (RX)
60
mA
pulse current @TX
11b @17.5dBm 11Mbps
280
mA
pulse current @TX
11g @15.5dBm 54Mbps
245
mA
pulse current @TX
11n @15.5dBm 65Mbps
245
mA

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BLE @4dBm
150
2.2. Working Environment
Please refer to Table 2 for working environment data.
Table 2 BL3383-P Working Environment Data
Symbol
Description
Min.
Max.
Units
Ts
Storage temperature
-40
125
℃
TA
Ambient operating temperature
0
85
℃
Vdd
Supply voltage
3.0
3.6
V
Vio
Voltage on IO pin
0
3.6
V
3. Radio Specifications
3.1. Basic Radio Specification
Please refer to Table 3 for radio specification.
Table 3 BL3383-P Radio Specification
Radio range
2402-2480MHz
Wireless standards
IEEE 802.11 b/g/n
Radio output (conductive)
802.11b:18.6±1.5dBm@11Mbps
802.11g: 16.81±1.5dBm@54Mbps
802.11n: 16.9±1.5dBm@MCS7/HT20
BLE: 4±2dBm
Antenna type
Internal: PCB antenna
External: Not supported
Receiving sensitivity
802.11b≦-89dBm@11Mbps
802.11g≦-76dBm@54Mbps
802.11n/HT20≦-73dBm@MCS7
Stack
IPv4, TCP/UDP/FTP/HTTP/HTTPS/TLS/mDNS

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Data rate (max)
11M@802.11b, 54M@802.11g, MCS[email protected]
Security
Encryption standard: Open/WEP-Open/WPA/WPA2
Encryption algorithm: WEP64/WEP128/TKIP/AES
Network types
STA/AP
3.2. Radio Performance
3.2.1 IEEE802.11b
Table 4 Basic specifications under IEEE802.11b
ITEM
Specification
Modulation Type
DSSS / CCK
Frequency range
2412 MHz~ 2462 MHz
Channel
CH1 to CH11
Data rate
1, 2, 5.5, 11Mbps
Table 5 Transmitting performance under IEEE802.11b
TX Characteristics
Min.
Typical
Max.
Unit
Power@11Mbps
17.5
dBm
Frequency Error
-10
+10
ppm
EVM@11Mbps
-14
dB
Transmit spectrum mask
Pass
Table 6 Receiving performance under IEEE802.11b
RX Characteristics
Min
.
Typical
Max.
Unit
11Mbps Input Level Sensitivity
Minimum Input Level (FER≦8%)
-89
dBm

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3.2.2 IEEE802.11g
Table 7 Basic specifications under IEEE802.11g
ITEM
Specification
Modulation Type
OFDM
Frequency range
2412 MHz~ 2462 MHz
Channel
CH1 to CH11
Data rate
6, 9, 12, 18, 24, 36, 48, 54Mbps
Table 8 Transmitting performance under IEEE802.11g
TX Characteristics
Min.
Typical
Max.
Unit
Power@54Mbps
16
dBm
Frequency Error
-10
+10
ppm
EVM@54Mbps
-30
dB
Transmit spectrum mask
Pass
Table 9 Receiving performance under IEEE802.11g
RX Characteristics
Min
.
Typical
Max.
Unit
54Mbps Input Level Sensitivity
Minimum Input Level (FER≦10%)
-76
dBm
3.2.3 IEEE802.11n
IEEE802.11n 20MHz bandwidth mode
Table 10Basic specifications under IEEE802.11n with 20MHz
ITEM
Specification

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Modulation Type
OFDM
Frequency range
2412 MHz~ 2462 MHz
Channel
CH1 to CH11
Data rate
MCS0/1/2/3/4/5/6/7
Table 11 Transmitting performance under IEEE802.11n with 20MHz
TX Characteristics
Min.
Typical
Max.
Unit
Power@HT20, MCS7
15.5
dBm
Frequency Error
-10
+10
ppm
EVM@HT20, MCS7
-30
dB
Transmit spectrum mask
Pass
Table 12 Receiving performance under IEEE802.11n with 20MHz
RX Characteristics
Min
.
Typical
Ma
x.
Unit
MCS7 Input Level Sensitivity
Minimum Input Level (FER≦10%)
-73
dBm
4. BL3383-P Hardware Information
4.1. PIN Sequence
Please refer to Fig 1 for the pin sequence.

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Fig 1 BL3383-P pin sequence
4.2. PIN Definitions
Please refer to Table 13 for pin definitions.
PIN
Function
1
Function
2
Function
3
Function
4
Function
5
1
GDN
2
VDD
3
RST
4
GPIO14
TX0
5
GPIO13
RX0
6
GPIO16
TX2
SI-SCL
7
GPIO15
RX2
SPI-CS
8
GPIO0
PWM0
9
GPIO17
PWM5
10
GPIO18
PWM6
11
GPIO19
PWM7
SPI-MOSI
12
GPIO20
PWM0
SPI-MISO
13
VDD
14
GND
15
GPIO1
PWM1
16
GPIO4
PWM4
17
GPIO3
TX1
PWM2
I2C-SDA
18
GPIO2
RX1
PWM3
I2C-SCL

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Table 13 BL3383-P pin definitions
Note:
1. In default, UART2 (pin4 and pin5) are used for bypass communication and UART2 (pin6 and
pin7) are used for output of debugging information and burning firmware. Please refer to the
description in DC Characteristics for UART output current level.
2. RST is the reset pin and will be effective with VIL. Configuration information will be remained
after module reset. The module has pull-up process for RST designed internally.
3. The pins for reset button and LED indication should be defined according to actual firmware
and circuit
4. GPIO0 and GPIO1 are hardware function pins and DO NOT pull up these two pins before
power-up.
5. Pulling up both GPIO0 and GPIO3 will switch the module to firmware programming mode.
4.3 Recommendations
The following precautions should be considered during PCB designing:
Do not place any electrical components or grounding in antenna area on main board and it’s
better to leave this area blank on PCB.
It is recommended to not place any electrical components within 10mm range of module
antenna and not design any circuit or bond copper on main board under this area.
Do not use the module inside any metal case or containers with metal painting.
Keep the antenna of Wi-Fi module next to the edge of main board (as shown in Fig 5) during
design of PCB to ensure better performance of antenna.

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Fig 2 BL3383-P Recommended PCB layout
4.4. Mechanical Dimensions
Please refer to Fig 3 for the dimensions of module.
Fig 3 BL3383-P Module Dimensions
Note: Dimensions (17.7±0.2) mm * (30±0.2) mm * (3.2)mm (with shielding case)