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Table 5 Circuit diagram

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5.2 Power supply requirements

Power supply requirements: if 3.3V voltage is generated by LDO to supply power to the

module, the capacitance value of C1 can be considered as 10uF ~ 22uF; if 3.3V voltage is

generated by DCDC power supply to supply power to the module, the capacitance value of C1 can

be considered as 22uF.

Please ensure that the power supply can provide enough current to avoid power failure when

the module sends data. It is recommended that the maximum input current of the module is

greater than 400mA.

Summary of Contents for AC8401

Page 1: ...otocol Support PCB antenna 3 3V power supply Peripheral equipment 2x UART 1x I2C 1x SPI 5x PWM 4x ADC Up to 14GPIOs Working environment temperature 20 to 85 Half hole SMT package supporting SMT Application Electrical lighting smart home home appliances instrumentation health care Industrial automation smart energy MODEL Model Antenna type explain AC8401 PCB Antenna Default Version 1 0 Release date...

Page 2: ...e 5 3 2 2 IEEE802 11g Mode 6 3 2 3 IEEE802 11n Mode 7 4 AC8401 essential information 10 4 1 Pin arrangement 10 4 2 Pin definition 10 4 2 1 Module hardware pin definition 10 4 3 Built in antenna 12 4 4 Mechanical dimension 13 4 5 Recommended package size 14 5 Reference design 15 5 1 UARTinterface design 15 5 2 Power supply requirements 16 6 Certification instructions 17 6 1Label diagram 17 6 2 FCC ...

Page 3: ...N10 processors with a maximum primary frequency of 160MHz 192KB of SRAM and a built in 2MB Flash 2 Electrical parameters 2 1 Power consumption parameters The power consumption parameters are detailed in Table 1 Table 1 AC8401 Power consumption parameters Specifications Min Typ Max Units VDD 1 3 1 3 6 V VIL input low voltage 0 0 8 V VIH input high voltage 2 3 6 V VOL output low voltage 0 4 V VOH ou...

Page 4: ...Table 3 AC8401 RF parameter frequency range 2 412GHz 2 464GHz 5 15GHz 5 25GHz Wireless Standard Support IEEE 802 11 a b g n RF power 802 11b 17dBm 1dBm 802 11g 14dBm 1dBm 802 11n 14dBm 1dBm 5G 802 11a n 12 5dBm 1dBm antenna Built in PCB antenna Add in not supported Receive Sensitivity 802 11b 85dBm 11Mbps 802 11a g 72dBm 54Mbps 802 11n 69dBm MCS7 Protocol stack support IPv4 TCP UDP FTP HTTP HTTPS ...

Page 5: ... rate 1 2 5 5 11Mbps Table 4 transmitting performance parameters in IEEE802 11b mode TX Characteristics Min Typical Max Unit Power 11Mbps 17 dBm Frequency Error 10 10 ppm EVM 11Mbps 30 dB Transmit spectrum mask Pass Table 5 receiving performance parameters in IEEE802 11b mode RX Characteristics Min Typical Max Unit Minimum Input Level Sensitivity 11Mbps FER 8 87 dBm Maximum Input Level FER 8 3 dBm...

Page 6: ...36 48 54Mbps Table 7 transmitting performance parameters in IEEE802 11g mode TX Characteristics Min Typical Max Unit Power 54Mbps 14 dBm Frequency Error 10 10 ppm EVM 54Mbps 34 dB Transmit spectrum mask Pass Table 8 receiving performance parameters in IEEE802 11g mode RX Characteristics Min Typical Max Unit Minimum Input Level Sensitivity 54Mbps 71 dBm Maximum Input Level FER 10 8 dBm ...

Page 7: ...stics Min Typical Max Unit Power HT20 MCS7 14 dBm Frequency Error 10 10 ppm EVM HT20 MCS7 30 5 dB Transmit spectrum mask Pass Table 11 receiving performance parameters of ieee802 11n in 20MHz mode RX Characteristics Min Typical Max Unit Minimum Input Level Sensitivity MCS7 69 dBm Maximum Input Level FER 10 8 dBm Table 12 basic parameters of ieee802 11n 5g 20MHz mode ITEM Specification Modulation T...

Page 8: ...racteristics Min Typical Max Unit Minimum Input Level Sensitivity MCS7 69 dBm Maximum Input Level FER 10 8 dBm Table 16 basic parameters of ieee802 11n in 40MHz mode ITEM Specification Modulation Type OFDM Frequency range 2422MHz 2452MHz Channel CH3 to CH9 Data rate MCS0 1 2 3 4 5 6 7 Table 17 transmission performance parameters of ieee802 11n in 40MHz mode TX Characteristics Min Typical Max Unit ...

Page 9: ...DM Frequency range 5 15GHz 5 25GHz Channel CH38 to CH46 Data rate MCS0 1 2 3 4 5 6 7 Table 20 transmission performance parameters of ieee802 11n 5g 40MHz mode TX Characteristics Min Typical Max Unit Power HT20 MCS7 12 5 dBm Frequency Error 10 10 ppm EVM HT20 MCS7 30 dB Transmit spectrum mask Pass Table 21 receiving performance parameters in ieee802 11n 5g 40MHz mode RX Characteristics Min Typical ...

Page 10: ... 1 AC8401 引脚排列示意图 4 2 Pin definition 4 2 1 Module hardware pin definition Table 15 for the definition of module hardware pins Table 14 for AC8401 pin definition annotation Pin numb er Pin definition Pin function Configurable function 1 GND Ground 2 GPIO01 PWM1 3 GPIO02 PWM2 4 GPIO03 Debug_UART_RX PWM3 ...

Page 11: ...art1 pin7 PIN14 is used for general transparent transmission UART0 pin4 pin5 is used for debug information output and firmware upgrade and the serial port output level is described by DC characteristics 2 En is the module hardware reset the low level is valid and the module will be restarted after reset to retain the original configuration information The EN has been pulled up in the module itself...

Page 12: ...he area should be cut directly directly and the ground laying wiring and metal components should be avoided directly under the antenna and in the two directions indicated by the arrow 图 2 AC8401 Antenna diagram The gain of PCB antenna of this module is about 0dB as shown in Figure 3 ...

Page 13: ...mm of the module antenna area and the wiring of the module bottom plate should be avoided as far as possible in this area and copper deposition is prohibited 3 Do not place the module in the metal shell or the mold with metal spray paint 4 It is strongly recommended that the antenna of the WiFi module should be close to the edge of the bottom plate as far as possible in PCB layout as shown in the ...

Page 14: ...odule dimension drawing a Description dimension 15 0 2 mm 21 0 2 mm 2 6 0 2 mm with shield 4 5 Recommended package size See Figure 6 for the recommended package dimensions of AC8401 图 3 AC8401 recommended package dimensions ...

Page 15: ... module can be directly connected to complete communication according to the circuit shown in Figure 7 Table 4 Circuit diagram 3 3V For 5V power supply equipment refer to the circuit shown in Figure 8 or design relevant level conversion circuit The resistance value can be adjusted according to the actual circuit ...

Page 16: ...lue of C1 can be considered as 10uF 22uF if 3 3V voltage is generated by DCDC power supply to supply power to the module the capacitance value of C1 can be considered as 22uF Please ensure that the power supply can provide enough current to avoid power failure when the module sends data It is recommended that the maximum input current of the module is greater than 400mA ...

Page 17: ...imum distance of 20cm between the radiator and any part of your body 2 8 Label and compliance information FCC ID label on the final system must be labeled with Contains FCC ID 2AY4V AC8401 or Contains transmitter module FCC ID 2AY4V AC8401 2 9 Information on test modes and additional testing requirements Contact Asiacom Technology Ltd will provide stand alone modular transmitter test mode Addition...

Page 18: ...ent This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment End users must follow the specific operating instructions for satisfying RF exposure compliance Note 1 This module certified that complies with RF exposure requirement under mobile or fixed condition this module is to be installed only in mobile or fixed applications A mobile device is defined ...

Page 19: ...al or less directional gain as an antenna that is authorized with the intentional radiator may be marketed with and used with that intentional radiator Note 4 For all products market in US OEM has to limit the operation channels in CH1 to CH11 for 2 4G band by supplied firmware programming tool OEM shall not supply any tool or info to the end user regarding to Regulatory Domain change ...

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