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Wireless security camera

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Block diagram

Wireless security camera

Block diagram

Block diagram

Find products and reference designs for your system.

Wireless security camera

Ambient light sensor Ambient light sensor Ambient light sensor Ambient light sensor ADC or comparator ADC or comparator Amp Amp Light dependent resistor Light dependent resistor PIR sensor PIR sensor Microphone Microphone Speakers Speakers Memory card Memory card Status LEDs Status LEDs Image sensor Image sensor IRIS, IR cut filter, auto-focus, zoom IRIS,IR cut filter,auto-focus,zoom Push button Pushbutton Antenna Antenna USB USB AC/DC adapter AC/DCadapter Solar panel Solar panel RJ45 RJ45 Point-of -load Point-of -load Energy storage Energy storage Battery fuel gauge Battery fuel gauge Battery charger Batterycharger O-ring controller O-ringcontroller Comparators, I2C bus repeater Comparators, I2C bus repeater Batteries Batteries Power mux Power mux Input power supply Input power supply Reverse polarity protection Reverse polarity protection TVS protection TVSprotection ESD protection ESD protection Energy harvester Energy harvester DC/DC DC/DC USB supply protection USB supply protection ESD protection ESD protection Wireless interface Wireless interface 2.4-GHz radio 2.4-GHz radio Wi-Fi Wi-Fi Sub-1-GHz radio Sub-1-GHz radio Input user interface Input user interface IO expander IO expander Logic (Schmitt trigger, FF, gates, multivibrator) Logic (Schmitt trigger, FF, gates, multivibrator) SD card interface SD card interface Logic (AND, NOT, buffer) Logic (AND, NOT, buffer) eFuse/smart high-side switches with current limit eFuse/smart high-side switches with current limit Bidirectional mux Bidirectional mux Ethernet interface Ethernet interface Logic (inverter buffer) Logic (inverter buffer) 10/100/1000 Ethernet PHY 10/100/1000 Ethernet PHY Crystal Crystal Status LEDs Status LEDs Memory Memory Non-volatile memory Non-volatile memory DDR DDR DDR termination DDR termination Clocking Clocking Clock synthesizer Clock synthesizer Logic (inverter) Logic (inverter) Clock buffer Clock buffer Crystal or oscillator Crystal or oscillator Output user interface Output user interface RGB & white LED driver RGB & white LED driver Logic (gates, multivibrator) Logic (gates, multivibrator) IO expander IO expander MOSFET MOSFET Self-diagnostics/monitoring Self-diagnostics/monitoring Real-time clock (RTC) Real-time clock (RTC) Temperature monitor Temperature monitor Voltage detector, supervisor, RESET, watchdog, window compara... Voltage detector, supervisor, RESET, watchdog, window comparator Current sensing/monitor Current sensing/monitor ADC ADC Amps Amps Environmental sensing Environmental sensing Temperature sensor Temperature sensor Humidity sensor Humidity sensor Two-way audio communication Two-way audio communication Mic. amps Mic. amps Audio ADC Audio ADC DSP DSP Audio DAC Audio DAC Speaker amps Speaker amps Image sensor interface Image sensor interface Schmitt trigger buffer Schmitt trigger buffer Clock buffer Clock buffer SubLVDS receiver SubLVDS receiver I2C voltage- level shifter I2C voltage- level shifter Lens motor driver Lens motor driver Logic Logic Motor driver Motor driver MOSFET MOSFET DAC DAC Amp Amp Motion detection Motion detection ADC or comparators ADC or comparators Amps Amps Digital media processing Digital media processing MPU MPU Buffer/driver Buffer/driver Voltage translator Voltage translator Logic gate Logic gate Voltage reference Voltage reference Signal input/output protection Signal input/output protection ESD protection ESD protection ESD protection ESD protection ESD protection ESD protection Non-isolated DC/DC power supply Non-isolated DC/DC power supply LDOs LDOs Buck, boost or buck-boost converters Buck, boost or buck-boost converters Power sequencer Powersequencer PMIC PMIC IR LED illumination IR LED illumination Buck, boost or buck-boost LED driver Buck, boost or buck-boost LED driver Position sensing Position sensing Hall-effect sensor Hall-effect sensor OR OR

Self-diagnostics/monitoring

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On-board sensors and other devices are used for self-diagnostics and system monitoring. A core temperature monitor is used to track the temperature of the PCB near the main processor. This function can be implemented using an external temperature monitor device. A voltage supervisor can keep the system in reset until the system voltage reaches valid levels.

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Power management (9)
Supervisor & reset ICs
  • TPS3423—Nano-power dual push-button controller with short and long press differentiation
    Data sheet: PDF | HTML
  • TPS3808E—600nA ultra-low quiescent current supervisor with programmable delay and manual reset
    Data sheet: PDF | HTML
  • TPS3424—Nanopower push-button controller with programmable delay
    Data sheet: PDF | HTML
  • TPS3435—Nano-quiescent-current precision timeout watchdog timer
    Data sheet: PDF | HTML
  • TPS386000—Open-drain, quad-supply voltage supervisors with programmable delay & watchdog timer
    Data sheet: PDF | HTML
  • TPS3898—Single-channel, ultra-small, adjustable supervisor with active-low, open-drain output
    Data sheet: PDF | HTML
Shunt voltage references
  • TLA431—All-capacitor stable precision programmable reference with KRA pin layout
    Data sheet: PDF | HTML
  • TLV431—1.5% accuracy, low-voltage, adjustable precision shunt regulator
    Data sheet: PDF | HTML
  • TLVH431A-Q1—Automotive, low-voltage adjustable precision shunt regulator
    Data sheet: PDF | HTML
Clocks & timing (3)
Real-time clocks (RTCs) & timers
  • TPL5100—Nano-powered programmable timer with power gating functionality and MOS driver
    Data sheet: PDF | HTML
  • TPL5110—Nano-powered system timer with MOS driver and manual MOSFET power ON
    Data sheet: PDF | HTML
  • TPL5111—Ultra low power system timer (35 nA) for power gating in duty cycled applications
    Data sheet: PDF | HTML
Amplifiers (14)
General-purpose op amps
  • TLV9064—Quad, 5.5-V, 10-MHz, RRIO operational amplifier for cost-optimized applications
    Data sheet: PDF | HTML
  • TLV9061—Single, 5.5-V, 10-MHz, RRIO operational amplifier for cost-optimized applications
    Data sheet: PDF | HTML
  • TLV9001—One-channel, 1-MHz rail-to-rail input and output 1.8-V to 5.5-V operational amplifier
    Data sheet: PDF | HTML
  • TLV9041—Single, 5.5-V, 350-kHz, ultra-low 1.2-V, low-quiescent current (10-μA) op amp
    Data sheet: PDF | HTML
  • TLV8541—Single, 3.6-V, 8-kHz, ultra-low quiescent current (550-nA), RRIO operational amplifier
    Data sheet: PDF | HTML
  • TLV8802—Dual, 5.5-V, 6-kHz, ultra low quiescent current (320-nA), RRIO operational amplifier
    Data sheet: PDF | HTML
Audio op amps
  • OPA1678—Low distortion (-120 dB), low noise (4.5nV/rtHz), dual audio op amp
    Data sheet: PDF | HTML
Comparators
  • TLV7041—Nanopower, small size comparator with open-drain output
    Data sheet: PDF | HTML
  • TLV7031—Nanopower, small size comparator with push-pull output
    Data sheet: PDF | HTML
  • TLV3202—5.5-V, high-speed, dual push-pull comparator
    Data sheet: PDF | HTML
  • TLV3691—Nanopower, small-size, single comparator
    Data sheet: PDF | HTML
Analog current-sense amplifiers
  • INA181—26-V bi-directional 350-kHz current-sense amplifier
    Data sheet: PDF | HTML
  • INA310A-Q1—AEC-Q100 -4-V to 110-V 1.3-MHz ultra-precise current-sense amplifier with comparator and reference
    Data sheet: PDF | HTML
Digital power monitors
  • INA3221—26V, triple channel, 13-bit, i2c output current/voltage monitor w/alerts
    Data sheet: PDF | HTML
Sensors (8)
Digital temperature sensors
  • TMP1075—1°C I²C temperature sensor with performance upgrades to industry standard LM75 / TMP75
    Data sheet: PDF | HTML
  • TMP102—2C digital temperature sensor, I2C/SMBus in 2.56mm2 package
    Data sheet: PDF | HTML
  • TMP103—±2°C Digital temperature sensor with I2C/SMBus capable of 1.4V in WCSP
    Data sheet: PDF | HTML
  • TMP112-Q1—Automotive ±0.5°C 1.4V to 3.6V digital temperature sensor with I2C/SMBus in 2.56mm2 package
    Data sheet: PDF | HTML
  • LM73—±1°C Temperature Sensor with I2C/SMBus Interface
    Data sheet: PDF | HTML
Temperature switches
  • TMP390—Ultra-small, dual-channel (hot & cold trip), 0.5-µA, resistor-programmable temperature switch
    Data sheet: PDF | HTML
  • LM56—3°C Dual output resistor-programmable temperature switch with fan control
    Data sheet: PDF | HTML
Humidity sensors
  • HDC3022—0.5% RH digital humidity sensor with permanent IP67 filter
    Data sheet: PDF | HTML
Data converters (1)
Precision ADCs
  • ADS1114—16-Bit 860SPS 1-Ch Delta-Sigma ADC With PGA, Oscillator, Vref, Comparator, and I2C
    Data sheet: PDF | HTML
  • TIDA-010224—Low-power wireless camera reference design for extended battery life
    Design guide: PDF | HTML Schematic: PDF

Technical documentation

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Type Title Date
Application note Power Rails Design for Battery Powered Camera and Video Doorbell PDF | HTML 25 May 2023
Application brief 75-nA IQ Buck-Boost Converter in Parallel for Increased Output Current (≥ 2 A) 22 Oct 2020
Technical article How smart amps are bringing high-fidelity audio into the smart home PDF | HTML 22 Jun 2023
More literature Techniques for PIR-based motion detection 16 Dec 2020
More literature Techniques for PIR-based motion detection 16 Dec 2020
Application brief Buck-boost Converter Battery Life Time Estimation for Wireless Network Cameras (Rev. A) 10 May 2022
Application note 배터리로 구동되는 카메라 및 비디오 초인종을 위한 전원 레일 설계 PDF | HTML 02 Oct 2023

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