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WLAN/Wi-Fi access point

Products and reference designs
Block diagram

WLAN/Wi-Fi access point

Block diagram

Overview

Our integrated circuits and reference designs help you create wireless access points that enable high-speed wireless local area network (WLAN) connections for the newest and fastest Wi-Fi® standards while maintaining power efficiency. Browse the interactive diagram below to design wireless access points with our most advanced microcontroller, interface and power delivery technologies.

Design requirements

Modern WLAN/Wi-Fi access point designs often require:

  • A radio frequency (RF) transceiver with integrated microcontroller for 802.11 standard compliance.
  • Gigabit Ethernet link for high-speed network connections.
  • Efficient, low-standby Power over Ethernet (PoE) delivery.

Block diagram

Find products and reference designs for your system.

WLAN/Wi-Fi access point

RGMII/SMGII RGMII/SMGII 5V-12V 5V-12V PCIe or IQ PCIe or IQ PCIe or IQ PCIe or IQ UART UART USB USB UART UART 4x 5GHz ANTs 4x 5GHz ANTs 4x 2.4GHz ANTs 4x 2.4GHz ANTs I2C or GPIO I2C or GPIO I2C I2C Console Console 1G/2.5G/10G/100G 1G/2.5G/10G/100G 1 or 2 Ports 1 or 2 Ports Power over Ethernet PD Power over Ethernet PD PoE PD PoE PD PWM Controller PWM Controller Digital Isolator Digital Isolator REF REF FET FET Current Sense Current Sense I2C Isolator I2C Isolator Needed for dual port Needed for dual port Non Isolated POL Power Non Isolated POL Power DC/DC Buck Converter DC/DC Buck Converter LDO LDO DDR Memory Power Solutions DDR Memory Power Solutions Current Sensing Current Sensing ORing Control ORing Control Voltage Supervisor / Reset IC Voltage Supervisor / Reset IC DC/DC Boost Converter DC/DC Boost Converter FET FET REF REF Sensing Sensing Temp Sense Temp Sense Clocking Clocking Clock Generator Clock Generator Crystal Crystal Clock Buffer Clock Buffer WAN Port WAN Port ESD ESD Ethernet PHY Ethernet PHY Voltage Level Translation Voltage Level Translation Processing Processing I2C Switch I2C Switch Little Logic Little Logic I2C Level Shifters, Buffers, and Hubs I2C Level Shifters, Buffers, and Hubs Comparators Comparators I2C General Purpose I/O I2C General Purpose I/O OPA OPA CPU CPU Flash Flash DDR DDR Analog Switches/Muxes Analog Switches/Muxes 4x4 Radio Front End 4x4 Radio Front End 4x4 Dual Band Radio 4x4 Dual Band Radio WiFi Front End Module WiFi Front End Module Diplexer Diplexer 4x4 Dual Band Radio 4x4 Dual Band Radio WiFi Front End Module WiFi Front End Module Analog Switches Analog Switches ESD ESD RS-232 RS-232 RS-232 RS-232 USB USB USB ESD USB ESD USB Current Limit Switch USB Current Limit Switch USB Type-C and Power Delivery USB Type-C and Power Delivery LED Driver LED Driver LED Driver LED Driver Logic Logic Gigabit LAN Ports (with POE Passthrough) Gigabit LAN Ports (with POE Passthrough) Ethernet PHY Ethernet PHY ESD ESD PoE PSE PoE PSE Bluetooth Low Energy/Zigbee Bluetooth Low Energy/Zigbee Zigbee/Bluetooth Low Energy Zigbee/Bluetooth Low Energy

Digital processing

close

The Processing subsystem is the main subsystem within the Wireless Access Point system. It includes the main CPU as well as the flash and DDR memory. In addition to these larger components it also is comprised of the surrounding logic, I2C devices, and amplifiers.

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Interface (12)
I2C general-purpose I/Os (GPIOs)
  • TCAL6416—16-bit translating I²C-bus/SMBus I/O expander with interrupt, reset and agile I/O configuration
    Data sheet: PDF | HTML
  • TCA9535—16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers
    Data sheet: PDF | HTML
  • TCA9536—Remote 4-Bit I²C and SMBus I/O expander with configuration register and interrupt
    Data sheet: PDF | HTML
  • TCA9554—8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers
    Data sheet: PDF | HTML
  • TCA6424A—24-bit translating 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers
    Data sheet: PDF | HTML
  • TCA9539—16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers
    Data sheet: PDF | HTML
I2C & I3C switches & multiplexers
  • TCA9543A—2-channel 1.65- to 5.5-V I2C/SMBus switch with interrupt, reset & voltage translation
    Data sheet: PDF | HTML
  • TCA9548A—8-channel 1.65- to 5.5-V I2C/SMBus switch with reset & voltage translation
    Data sheet: PDF | HTML
I2C & I3C level shifters, buffers & hubs
  • PCA9306-Q1—Automotive 2-bit bidirectional 400-kHz I2C/SMBus voltage level translator
    Data sheet: PDF | HTML
  • PCA9306—2-bit bidirectional 400-kHz I2C/SMBus voltage level translator
    Data sheet: PDF | HTML
  • TCA9617A—2-bit level-translating 1-MHz I2C/SMBus buffer/repeater
    Data sheet: PDF | HTML
  • TCA9803—2-bit level-translating 400-kHz I2C/SMBus buffer/repeater with internal 3-mA current source
    Data sheet: PDF | HTML
Logic & voltage translation (17)
Voltage translators
  • SN74AXC2T245—Dual-bit, 2-DIR pin dual-supply bus transceiver w/ configurable voltage translation, 3-state output
    Data sheet: PDF | HTML
  • SN74LVC2T45—2-Bit Dual Supply Transceiver with Configurable Voltage-Level Shifting and 3-State Outputs
    Data sheet: PDF | HTML
  • SN74AXC2T45—Dual-bit dual-supply bus transceiver with configurable voltage translation
    Data sheet: PDF | HTML
  • SN74AXC4T245—4-bit dual-supply bus transceiver
    Data sheet: PDF | HTML
  • TXV0108-Q1—Automotive, dual-supply direction-controlled eight-channel voltage translator
    Data sheet: PDF | HTML
  • SN74LVC1T45—Single-Bit Dual-Supply Bus Transceiver with Configurable Voltage-Level Shifting and 3-State Outputs
    Data sheet: PDF | HTML
Noninverting buffers & drivers
AND gates
  • SN74LVC1G08—1-ch, 2-input 1.65-V to 5.5-V 32 mA drive strength AND gate
    Data sheet: PDF | HTML
  • SN74AUP1G08—1-ch, 2-input 0.8-V to 3.6-V low power (< 1uA) AND gate
    Data sheet: PDF | HTML
  • SN74LVC1G11—1-ch, 3-input 1.65-V to 5.5-V 32 mA drive strength AND gate
    Data sheet: PDF | HTML
  • SN74AHC1G09—1-ch, 2-input 2-V to 5.5-V high-speed (9 ns) AND gate with open-drain outputs
    Data sheet: PDF | HTML
  • SN74AHC1G08—1-ch, 2-input 2-V to 5.5-V high-speed (9 ns) AND gate
    Data sheet: PDF | HTML
Switches & multiplexers (6)
Analog switches & muxes
  • TS5A2066—5-V, 1:1 (SPST), 2-channel general-purpose analog switch
    Data sheet: PDF | HTML
  • TMUX2889—+/- 5-V beyond the supply, 2:1 (SPDT) 2-channel switch with 1.8V compatible logic
    Data sheet: PDF | HTML
  • SN74CB3Q3245—3.3-V, 1:1 (SPST), 8-channel FET bus switch
    Data sheet: PDF | HTML
  • TS5A9411—5-V, 2:1 (SPDT), 1-channel general-purpose analog switch (6-pin SC70)
    Data sheet: PDF | HTML
  • SN74CBTLV3126—3.3-V, 1:1 (SPST), 4-channel FET bus switch
    Data sheet: PDF | HTML
  • TS5A3159—1-Ω on-state resistance, 5-V, 2:1 (SPDT), 1-channel analog switch
    Data sheet: PDF | HTML
Amplifiers (5)
General-purpose op amps
  • LMV321A—Single, 5.5-V, 1-MHz, 4-mV offset voltage, RRO operational amplifier
    Data sheet: PDF | HTML
  • OPA2310—Dual-channel, 5.5-V, 3-MHz high-output-current (150-mA) fast-shutdown (1-μs) operational amplifier
    Data sheet: PDF | HTML
  • TLV9101—Single, 16-V, 1.1-MHz, low-power operational amplifier
    Data sheet: PDF | HTML
Comparators
  • TLV7031—Nanopower, small size comparator with push-pull output
    Data sheet: PDF | HTML
  • TLV3511—6ns push-pull comparator with rail-to-rail inputs
    Data sheet: PDF | HTML

    Technical documentation

    View all 12
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    Type Title Date
    Application note Programming Fun Lights With TI's TCA6507 30 Nov 2007
    Analog Design Journal System telemetry: What, why and how? 30 Apr 2014
    Application note SimpleLink WLAN Access Point (Rev. A) PDF | HTML 27 Apr 2020
    White paper Navigating your way through the RFID jungle 14 Mar 2014
    Technical article 3 tips for reducing wireless network interference in access point equipment PDF | HTML 13 Jun 2023
    Application brief Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 08 May 2022
    White paper Wireless connectivity for the Internet of Things (IoT) with MSP430 MCUs 08 Apr 2014
    Application note CC430 RF Examples (Rev. C) 07 Sep 2012
    Application brief Integrating the Current Sensing Resistor (Rev. D) PDF | HTML 07 Apr 2023
    Application note AN058 -- Antenna Selection Guide (Rev. B) 06 Oct 2010
    Technical article Delivering a smooth transition from AC to PoE power PDF | HTML 05 Sep 2023
    Application note Choosing the Correct I2C Device for New Designs PDF | HTML 03 Jul 2018

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