Electrical Parameters¶

Electrical characteristics¶

Table E-1 Electrical Parameters

Symbol	Parameter	Minimum	Typical	Maximum	Unit
5V_ IN	PMU input pin voltage generally 5V	3.6	5	5.5	V
VDD33	Wi Fi power supply voltage	2.6	3.3	3.6	V
VIH	Input high voltage 3.0V ≤ VDD33 ≤ 3.6V	VDD33-0.6	/	VDD33+0.3	V
VIL	Input low voltage 3.0V ≤ VDD33 ≤ 3.6V	/	/	0.6	V
VOL	Output low voltage @ IOL=12mA	/	/	0.4	V
VOH	Output high voltage @ IOL=20mA	VDD33-0.5	VDD33	VDD33+0.3	V
I_3.3V	Working current of 3.3V power supply of module	90	/	500	mA
I_5V	Working current of 5V power supply of module	55	/	250	mA

Wi Fi Features¶

Supported frequency band¶

Table E-2 Frequency Band Table

Parameter	Min	Typ	Max	Unit
Receive frequency rang 2.4Ghz	2412	/	2484	Mhz

Receiving characteristics¶

Table E-3 Receiving Characteristics Table

Parameter	Condition	Min	Typ	Max	Unit
Sensitivity
11b,1M	FER < 8%,1024 bytes	/	-94	/	dBm
11b,11M	FER < 8%,1024 bytes	/	-87	/	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	/	-10	/	dBm
11n	FER < 10%,1024 bytes	/	-10	/	dBm
power consumption
11b	/	/	80	/	mA
11g	/	/	82	/	mA
11n	/	/	82	/	mA

The above power consumption data is the current measured when VDDA33 is 3.3V

Emission characteristic¶

Table E-4 Emission Characteristics Table

Parameter	Condition	Min	Typ	Max	Unit
Output power
11b,1M DSSS	Maximum Burst power	/	18	/	dBm
11g,54M OFDM	Maximum Burst power	/	16	/	dBm
11n,MCS7	Maximum Burst power	/	14	/	dBm
Power consumption
11b	100% Duty Cycle @ 17dBm	/	320	/	mA
11g	100% Duty Cycle @ 14dBm	/	290	/	mA
11n	100% Duty Cycle @ 13dBm	/	270	/	mA

The above power consumption data is the current measured when VDDA33 is 3.3V

The RC oscillator built in the chip will produce a certain temperature drift with the change of ambient temperature. The greater the change of ambient temperature range, the greater the temperature drift. The temperature drift of the clock may affect the application requiring high-precision clock or the accuracy of serial communication with the host computer

If the application scheme requires high-precision clock, or serial communication is required, and the ambient temperature range exceeds - 10 to 70 ℃, it is recommended to use an external crystal oscillator as the clock source, and the working ambient temperature can meet or exceed the industrial standard specifications. If the internal RC oscillator is used as the clock source, the serial port communication baud rate must be less than or equal to 115200bps, and the total deviation from the serial port baud rate of the upper computer shall not exceed 4% to ensure good communication. If the working environment temperature is - 10 to 70 ℃, the baud rate deviation of the matched host computer serial port must not exceed ± 1.5% in this temperature zone. If the working environment temperature is - 20 to 85 ℃, the baud rate deviation of the host computer serial port must not exceed ± 1% in this temperature zone

When the upper computer is designed without crystal oscillator, the communication error should be minimized. Chipintelli can provide a serial port baud rate adaptive scheme, which requires adding a handshake command to the serial port protocol, and the upper computer ensures that it will reply according to the protocol requirements within 50ms after receiving the handshake command. After adding this adaptive scheme, the product can be used in scenarios where the working environment temperature is - 20 to 85 ℃

When CI230X is conducting SMT welding, please control the furnace temperature and time. The temperature curve of a SMT welding is shown in the following figure.

Figure E-1 CI230X SMT welding temperature curve

The humidity sensitivity level of CI230X is MSL3. Please store it according to MSL3 conditions before use. If the storage time after unpacking exceeds the requirements of MSL3, please bake before SMT welding.