WF43 Datasheet Amp’ed RF Technology, Inc.
WF43 Product Specification WLAN features 802.11b/g/n, 802.11d Regulatory Domain, 802.11r Power savings mode Transmit power back-off Wi-Fi Direct (concurrent) 14.6mm x 13.5mm x 2.8 mm Wi-Fi Display Description Wi-Fi Protected Setup Amp’ed RF Tech presents the WF43 Wi-Fi Soft Access Point Stand-alone module: 802.11bgn + Host MCU Hotspot 2.0 with Wi-Fi protocol stack.
Table of Contents WF43 Product Specification ............................................................................................................................................... 2 1 Software Architecture ................................................................................................................................................. 4 1.1 Protocol stack diagram...........................................................................................................................
1 Software Architecture 1.1 Protocol stack diagram Amp’ed UP Stack, Wi-Fi API or Custom Application artSerial Command Set DNS/DHC TCP/UDP IP Wi-Fi Manage r 802.11 802.11 MAC Radio Chipset 802.11PHY 1.2 Wi-Fi features 802.11b/g/n, 802.11d Regulatory Domain, 802.11r Output Power, +23dBm Interface, SDIO 2.0, SPI Wi-Fi Direct (concurrent) Wi-Fi Display Wi-Fi Protected Setup Soft Access Point Hotspot 2.0 Security: WPAI/WPA2, AES, WEP, TKIP Phone: +1 408 213-9530 | E-mail: info@ampedrftech.
2 Hardware Specifications General Conditions (VIN= 3.6V and 25°C) 2.1 Recommended Operating Conditions Rating Min Typical Max Unit Operating Temperature Range -40 - 85 °C Supply Voltage VIN 2.3 3.6 4.8 Volts Signal Pin Voltage - 2.0 - Volts 2400 - 2483.5 MHz RF Frequency 2.2 Absolute Maximum Ratings Rating Min Typical Max Unit Storage temperature range -55 - +150 °C Supply voltage VIN -0.3 - +5.0 Volts I/O pin voltage VIO -0.3 - +2.
2.4 Current Consumption Modes (WLANMax Power Consumption) VBAT=3.6v Avg Unit Complete Power Down 17 µA Sleep 101 µA Power save (beacon period (including DTIM) 100ms, beacon length 1ms) -proprietary power saving features enabled 0.77 mA RX (idle, 2.4GHz) 62.07 mA RX (active, 2.4GHz, OFDM) 65.87 mA TX (active, 2.4GHz, OFDM), 15.5dBm @RF port 257.67 mA TX (active, 2.4GHz, OFDM), 20.5dBm @RF port 279.67 mA A VoIP call using a standard codec G.
2.5 Selected RF Characteristics Parameters Conditions Typical Unit 50 ohm Antenna load Wi-Fi Receiver Sensitivity DSSS 1Mbps@FER<8% -98.5 dBm Sensitivity DSSS 2Mbps@FER<8% -96 dBm Sensitivity CCK 5.5Mbps@FER<8% -94 dBm Sensitivity CCK 11Mbps@FER<8% -89 dBm Sensitivity BPSK 6Mbps@PER<10% -94.5 dBm Sensitivity BPSK 9Mbps@PER<10% -92.5 dBm Sensitivity QPSK 12Mbps@PER<10% -91.
Test Mode Bandwidth(MHz) 802.11b Channel No. 20 802.11g 20 802.11n 20 Frequency(MHz) 6 2437 6 2437 6 2437 Data Rate(Mbps) Peak Power(dBm) 1 12.31 5.5 11.62 11 11.38 6 19.52 24 18.95 54 17.77 6.5/7.2(MCS0) 19.1 39/43.3(MCS4) 18.98 65/72.2(MCS7) 17.86 2.6 Transmit Power Back-off When 2.7 V < VBAT < 3.6 V, the output power shall be backed off by 0.8 dB per300 mV drop of Vbat below 3.
2.7 Pin Assignment Name Type Pin # Description ALT Function 5V Tolerant Initial State UART Interface RXD I 13 Receive data TXD O 14 Transmit data RTS O 12 Request to send (active low) CTS I 11 Clear to send (active low) I 9 Boot 0 Y Y I2C Data/Aux Uart Rx I2C Clock/Aux Uart Tx Y Y Reserved BOOT 0 Power and Ground Vin 8 Vin GND 7 GND I 10 Reset input (active low for 5 ms) I 15 LPO input Reset RESETN 2.
2.8 Pin Placement Diagram (Top View) Phone: +1 408 213-9530 | E-mail: info@ampedrftech.com Address : 2674 N. First Street, ste 220, San Jose, CA 95134 电话：+86 022-83945100 | 传真：+86 022-83945100 转 111 | E-mail: infocn@ampedrftech.
2.9 Layout Drawing Size: 14.6 mm x 13.5 mm x 2.8 mm Phone: +1 408 213-9530 | E-mail: info@ampedrftech.com Address : 2674 N. First Street, ste 220, San Jose, CA 95134 电话：+86 022-83945100 | 传真：+86 022-83945100 转 111 | E-mail: infocn@ampedrftech.
3 Hardware Design 3.1 Block Diagram 3.2 Layout All unused pins should be left floating; do not ground. All GND pins must be well grounded. The area around the antenna should be free of any ground planes, power planes, trace routings, or metal for at least 6.5 mm in all directions. Traces should not be routed underneath the module. 3.3 Module Reflow The WF43 is a surface mount module supplied on a 15 pin, 6-layer PCB. The final assembly recommended reflow profiles are: For RoHS/Pb-free applications, Sn96.
3.5 UART Interface The UART is compatible with the 16550 industry standard. Four signals are provided with the UART interface. The TXD and RXD pins are used for data while the CTS and RTS pins are used for flow control. Connection to Host Device Typical RS232 Circuit Phone: +1 408 213-9530 | E-mail: info@ampedrftech.com Address : 2674 N. First Street, ste 220, San Jose, CA 95134 电话：+86 022-83945100 | 传真： +86 022-83945100 转 111 | E-mail: infocn@ampedrftech.
3.6 PCB Layout Guidelines 3.7 Reset Circuit Two types of system reset circuits are detailed below. 3.7.1 External Reset Circuit Note: RPU ranges from 30K ohm to 50K ohm internally. Phone: +1 408 213-9530 | E-mail: info@ampedrftech.com Address : 2674 N. First Street, ste 220, San Jose, CA 95134 电话：+86 022-83945100 | 传真：+86 022-83945100 转 111 | E-mail: infocn@ampedrftech.
3.7.2 Internal Reset Circuit Notes: - RPU ranges from 30K ohm to 50K ohm internally. - RRST should be from 1K ohm to 10K ohm Phone: +1 408 213-9530 | E-mail: info@ampedrftech.com Address : 2674 N. First Street, ste 220, San Jose, CA 95134 电话：+86 022-83945100 | 传真：+86 022-83945100 转 111 | E-mail: infocn@ampedrftech.
4 Regulatory Compliance Federal Communications Commission statement: This module has been tested and found to comply with the FCC Part15. These limits are designed to provide reasonable protection against harmful interference in approved installations. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance the instructions, may cause harmful interference to radio communications.
Industry Canada statement: Label of the end product: The final end product must be labeled in a visible area with the following "Contains transmitter module IC: 8828A-MOD9" This Class B digital apparatus complies with Canadian ICES-003. Cetappareilnumérique de la classe B estconforme à la norme NMB-003 du Canada. This device complies with RSS-210 of the Industry Canada Rules.
5 Ordering Information Part Name Description WF43 Standard version 6 Revision History Data Revision Description 17-February-2014 1.2 Added WF43LT option 20-June-2014 1.3 Updated the picture of WF43 16-Sep-2014 1.4 Updated the ordering information 24-Mar-2015 1.5 Updated the description, pin assignment and block diagram. 14-July-2015 1.6 Updated the ordering information. Phone: +1 408 213-9530 | E-mail: info@ampedrftech.com Address : 2674 N.
