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WK822H-B0-A WiFi&Bluetooth dual-mode intelligent module

Overview: WK882H SMT module is a dual-mode module developed independently by Weierjian Technology, which integrates WiFi and BLE. The module has different specifications and sizes to adapt to various commonly used WIFI module specifications and sizes on the market, fully achieving PIN to PIN compatibility; The main control SOC used in this module is LN882H from Lightningsemi, and the chip core is ARM © Cortex - M4F， Main frequency supports 40/80/160M clock, supports remote RTOS upgrade, and supports low-power mode;

WK882H module features:

This module WiFi supports standard 2.4GHz 802.11 b/g/n protocol, with a bandwidth of 20MHz, supports STA/AP/STA+AP operation mode, a complete TCP/IP protocol stack, and supports AT command operation. BLE supports the standard Bluetooth LE 5.1 protocol and supports remote (125Kbps, 500Kbps) and high-speed transmission (2Mbps).

The WK882H-B0-A module is a WiFi&BLE dual-mode module that can be configured with AT commands for WiFi networks. When using a single-mode WiFi module, users can also customize and develop applications through the SDK. The BLE function requires users to develop it themselves through the SDK, and the external SPI FLASH size is configured according to user usage and is not configured by default. The module size is 18mm * 20mm.

This module supports AT command debugging networking or user self-developed SDK. The module is highly integrated and does not require other peripheral devices. It can be directly powered on for stable performance and wide transmission distance. It supports certifications such as SRRC/FCC/CE/IC/KCC/NCC/REACH/ELEC/ROHS.

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（一）、Electrical Characteristics

1、Absolute Maximum Ratings

Symbol	Min.	Max.	Unit
Supply Voltage	0	3.6	V
Logical Voltage	0.3*VIO	VDD33+0.3	V
Storage Temperature	-40	120	oC

2、Recommended Operating Conditions

Symbol	Symbol	Min.	Typ.	Max.	Unit
Power Supply	VDD33	2.6	3.3	3.6	V
VIO	VIO1/VIO2	2.6	3.3	3.6	V
Operating Temperature	-	-40	25	100	oC

3、Input/Output Terminal Characteristics

Characteristic	Min.	Typ.	Max.	Unit
Input low voltage VIL	-0.3	0	0.6	V
Input high voltage VIH	VIO-0.6	VIO	VIO+0.3	V
Output low voltage VOL	-0.45	0	0.45	V
Output high voltage VOH	VIO-.5	VIO	VIO+0.5	V

（二）、WiFi RF parameters

1、Supported Frequencies

Parameter	Condition	Min.	Typ.	Max.	Unit
Receive frequency range 2.4GHz	-	2412	-	2484	MHz

2、Receiver Characteristics

Parameter	Condition	Min.	Typ.	Max.	Unit
Sensitivity
11b, 1M	FER<8%,1024 bytes		-94		dBm
11b, 11M	FER<8%,1024 bytes		-88		dBm
11g, 6M	FER<10%,1024 bytes		-90		dBm
11g, 54M	FER<10%,1024 bytes		-74		dBm
11n, MCS0	FER<10%,1024 bytes		-90		dBm
11n, MCS7	FER<10%,1024 bytes		-71		dBm
Maximum input level
11b	FER<8%,1024 bytes		4		dBm
11g	FER<10%,1024 bytes		-6		dBm
11n	FER<10%,1024 bytes		-6		dBm
Operating power consumption
11b			63		mA
11g			68		mA
11n			68		mA

3、Transmitter Characteristics

Parameter	Condition	Min.	Typ.	Max.	Unit
Output power
11b, 1M DSSS	Maximum RMS output power measured		-94		dBm
11g, 54M OFDM	Maximum RMS output power measured		-88		dBm
11n, MCS7	Maximum RMS output power measured		-90		dBm
Power consumption
11b	Continuous transmitting		280		mA
11g	Continuous transmitting		260		mA
11n	Continuous transmitting		260		mA