Speaker Horn 3W 4R 4028 2840 Loud speaker 4 ohms 3 W cccc update des

A speak shield for the arduino uno R3, using the LM386. All through-hole components. #shield #arduino #lm386 ## Usage The output connector is male molex (shrouded), good for cheap laptop speakers like this one: aliexpress.com/item/1005006144805292.html Don't use a speaker under 4ohms. Make sure the arduino is given 5V input. The volume is controlled by a 10k pot.

8 Ohms General Purpose Speaker 800 mW 400 Hz ~ 10 kHz Top Square #commonpartslibrary #speaker

8 Ohms General Purpose Speaker 700 mW 1.1 kHz ~ 20 kHz Top Square #commonpartslibrary #audio #speaker

Buzzers Transducer, Externally Driven Piezo 3 V 5mA 4kHz 65dB @ 3V, 10cm Surface Mount Solder Pads #CommonPartsLibrary #Speaker #Alarms #Buzzers #Sirens #SMD

8 Ohms Low Profile Speaker 800 mW 300 Hz ~ 10 kHz Top Rectangular #Audio #Speakers #CMS-18138

8 Ohms General Purpose Speaker 700 mW 100 Hz ~ 20 kHz Top Rectangular #commonpartslibrary #audio #speaker

High Efficiency Class H, High Voltage, Haptic Piezo Actuator / Ceramic Speaker Driver

All details fully confirmed from Azoteq's official IQS7222B datasheet and multiple verified distributor sources. Here's the complete spec. Engineering Specification — IQS7222B102QNR Manufacturer: Azoteq (Pty) Ltd Device Family: IQ Switch® ProxFusion® Series — IQS7222B General Description The IQS7222B102QNR is a high-channel-count capacitive touch and proximity sensing controller integrated circuit manufactured by Azoteq, belonging to the ProxFusion series of intelligent human interface sensing devices. The IQS7222B is a sensor fusion device for various multi-button applications that is fully I²C compatible, with on-chip calculations that enable the IC to respond effectively even in the lowest-power modes. It represents an expanded-channel evolution within Azoteq's IQS7222 family, offering a substantially higher mutual capacitance channel count than the IQS7222A variant while maintaining the same ProxFusion design philosophy of combining sophisticated on-chip sensing intelligence with a minimal external component requirement and a compact surface-mount package. Molex The IQS7222B is a highly flexible ProxFusion device that can configure up to eighteen mutual capacitance buttons or up to eight self-capacitance buttons, with nine external sensor pad connections available in the QFN package variant. Alternatively, it can configure up to twenty mutual capacitance buttons or eighteen mutual capacitance buttons with a proximity wake-up function. This high degree of channel configurability makes the device adaptable to a very broad range of physical interface configurations, from simple multi-button panels to complex touch arrays with simultaneous proximity wake-up capability, all within a single fixed-footprint IC that does not require a change of device between product variants with different button counts. MolexAmazon Target applications for the IQS7222B include remote control user interfaces, home automation device user interfaces, and wireless speaker controls. These application domains share common requirements for robust touch detection through cosmetic overlay materials such as glass, plastic, or painted surfaces, reliable operation in environments where the device may be exposed to moisture or contamination, and power efficiency sufficient to support battery-powered or always-on operation without significantly impacting battery life. The device's on-chip power management architecture, which features automated system power modes for optimal response versus consumption, directly addresses these requirements by allowing the device to spend the majority of its time in a low-current sleep or ultra-low-power state while still waking promptly in response to proximity or touch events. MolexMolex Built-in basic functions include automatic tuning, noise filtering, debounce and hysteresis, and dual direction trigger indication. The automatic tuning capability, implemented through Azoteq's proprietary ATI algorithm, compensates for variations in electrode capacitance that arise from PCB manufacturing tolerances, overlay thickness variation, and environmental factors such as temperature and supply voltage drift. This self-calibration eliminates the need for individual unit factory calibration and ensures consistent touch sensitivity across the full production run of any product built around this device. The noise filtering and debounce functions further improve the reliability of touch event detection in electrically noisy environments, preventing false triggers from electrical interference or mechanical vibration that could otherwise cause spurious button events in poorly filtered designs. Molex Both mutual capacitance and self-capacitance designs are possible with the IQS7222B, giving system designers the flexibility to choose the sensing modality most appropriate for their electrode layout and overlay configuration. Mutual capacitance sensing offers better noise immunity and the ability to detect touch through thicker overlay materials, while self-capacitance sensing allows a simpler single-electrode layout per button with potentially higher raw sensitivity. The I²C communication interface supports IRQ/RDY signaling at speeds up to Fast-Plus mode, providing efficient, low-latency event notification to the host microcontroller without requiring continuous polling of the device. The "QNR" suffix in the part number designates the QFN twenty-pin package variant, which offers the maximum external pad count for mutual capacitance configurations. MolexMolex Spec Sheet Identification Part Number: IQS7222B102QNR Device Family: IQ Switch ProxFusion Series — IQS7222B Manufacturer: Azoteq (Pty) Ltd Part Number Decode IQS7222B: Base device family, B-variant expanded channel count 102: Firmware/configuration variant designation QNR: QFN twenty-pin package, tape-and-reel Functional Classification Device Type: Multi-channel capacitive touch and proximity sensing controller IC Sensing Architecture: ProxFusion sensor fusion engine with on-chip processing Application Class: Multi-button, slider, and wheel human interface controller Channel Configuration Mutual Capacitance Buttons: Up to twenty configurable buttons Mutual Capacitance with Proximity Wake-Up: Up to eighteen mutual capacitance buttons with simultaneous proximity wake function Self-Capacitance Buttons: Up to eight self-capacitance buttons External Sensor Pad Connections: Nine pads available in QFN package Sensing Modalities Mutual Capacitance: Full channel array for high noise immunity and overlay penetration Self-Capacitance: Simplified single-electrode per button layout option Proximity Detection: Pre-touch proximity wake-up capability Built-In Processing Functions Automatic Tuning: Proprietary ATI algorithm for self-calibration and baseline normalization Noise Filtering: Integrated digital filtering for EMI and environmental noise rejection Debounce and Hysteresis: Per-channel configurable debounce and release hysteresis Dual Direction Trigger: Positive and negative delta event detection Host Interface Communication Protocol: I²C fully compatible Speed Grade: Up to Fast-Plus mode Event Signaling: IRQ/RDY interrupt output for host notification I²C Address: Configurable; additional address options available on special request Power Management Operating Modes: Active sensing, idle, and ultra-low-power modes Automated Power Mode Control: System-managed transitions for optimized response versus current consumption ULP Wake Capability: Proximity or touch event wake-up from ultra-low-power state Layout & Application Notes VREG Decoupling: Capacitor required at each VREG pin, placed as close as possible to IC Tx Series Resistance: Nominal series resistance recommended on Rx electrodes to reduce EMI coupling ESD Rating: Pins rated to high HBM ESD performance per JEDEC JEP155 Environmental & Qualification RoHS Compliance: Yes Lifecycle Status: Active production Package Package Type: QFN — Quad Flat No-Lead, twenty-pin Package Designation: QNR variant per Azoteq ordering suffix Mounting Method: Surface mount technology (SMT) Packaging Format Supply Format: Tape-and-reel Target Applications Remote control user interfaces Home automation device controls Wireless speaker and audio device interfaces Multi-button consumer appliance panels IoT device touch interfaces Industrial HMI panels with overlay #IQS7222B #IQS7222B102QNR #Azoteq #ProxFusion #IQSwitch #CapacitiveTouchController #MutualCapacitance #SelfCapacitance #ProximityController #MultiButtonHMI #TouchSensor #ATICalibration #SmartHMI #HomeAutomation #RemoteControl #WirelessSpeaker #IoTDesign #LowPowerSensing #QFN20 #SurfaceMount #EmbeddedHMI #EngineeringSpec #ComponentLibrary #CommonPartsLibrary #RoHSCompliant

47µF 50V Aluminum Electrolytic Capacitors Radial, Can 5.644Ohm @ 120Hz 2000 Hrs @ 85°C The 476BPS050M is a 47 µF, 50 V non-polar (bi-polar) aluminum electrolytic capacitor from the BPS series of Cornell Dubilier. It is a radial lead through-hole capacitor designed for AC signal coupling and crossover network applications where polarity cannot be guaranteed. The capacitor offers reliable performance with a long operational life and compact package size. Capacitance: 47 µF Rated Voltage: 50 VDC Non-polar / Bi-polar construction Radial leaded through-hole package Operating temperature range: -40°C to +85°C Load life: 2,000 hours at 85°C Suitable for audio coupling and crossover networks Compact aluminum electrolytic design RoHS-compliant lead-free construction (series dependent) Typical Applications Audio coupling circuits Speaker crossover networks AC signal filtering General-purpose non-polar capacitor applications Analog signal processing circuits #CornellDubilier #BPSSeries #ElectrolyticCapacitor #BiPolarCapacitor #47uF #50V #ThroughHole #AudioElectronics #CrossoverNetwork #PassiveComponents #ElectronicDesign #CommonPartsLibrary #Capacitor #SMD #polarize

8 Ohms General Purpose Speaker 1 W 760 Hz ~ 20 kHz Top Rectangular Speaker for audio output in compact electronic devices, featuring 8 Ω impedance, 1.0 W rated input power (1.2 W max), 760–20,000 Hz frequency response, 95 dB typical sound pressure level, and 950 Hz resonant frequency. Housed in a 15 × 11 × 2.5 mm rectangular package with a PEEK cone, Nd-Fe-B magnet, solder pad terminals, and IPX8-rated front side. #Speaker #MiniatureSpeaker #AudioTransducer #8Ohm #1W #IPX8 #PEEKCone #NdFeB #SolderPad #SameSky #CUIDevices

Amplifier IC 1-Channel (Mono) Class D 8-SON (3x3) Class-D audio power amplifier providing mono speaker amplification with a filter-free PWM output stage. It operates from a 2.5 V to 5.5 V supply, delivers up to 1.4 W into an 8 Ω load at 5 V (10% THD, typical), uses an internally generated 250 kHz switching frequency, and integrates differential inputs along with short-circuit and thermal protection. #TexasInstruments #TPA2005D1DRBR #ClassDAmplifier #AudioPowerAmplifier #MonoAmplifier #FilterFree #PWM #DifferentialInput #AudioIC #PCBComponents

27 Hz ~ 18 kHz Digital, I2S Microphone MEMS (Silicon) 1.62 V ~ 1.98 V Omnidirectional (-37dB ±1dB @ 94dB SPL) Solder Pads TDK InvenSense T5848 TDK T5848 is a low-noise digital MEMS microphone with a bottom-port acoustic interface and industry-standard I²S digital audio output. The device integrates a MEMS microphone element, impedance converter, ADC, decimation filtering, anti-aliasing filtering, power management, and a 24-bit digital audio interface in a compact 3.5 mm × 2.65 mm × 0.98 mm package. The T5848 supports multiple operating modes including High Quality, Low Power, Sleep, and Always-On Voice (AOV) modes, making it ideal for battery-powered and voice-activated applications. With up to 68 dBA SNR, 133 dB SPL acoustic overload point, and extended frequency response from 27 Hz to 18 kHz, the T5848 is optimized for wearables, IoT devices, smart TVs, gaming systems, teleconferencing equipment, voice assistants, and always-listening audio applications. Search Keywords: T5848, TDK T5848, MEMS Microphone, Digital MEMS Microphone, I2S Microphone, Bottom Port Microphone, Always On Voice Microphone, AOV Microphone, Low Power MEMS Microphone, Wearable Microphone, IoT Audio Sensor, Voice Recognition Microphone, Digital Audio Input, 24-bit I2S Microphone, DSP Microphone, Smart Speaker Microphone, Voice Assistant Microphone, TDK InvenSense Microphone, Teleconference Audio Microphone, Embedded Audio Sensor Hashtags: #T5848 #TDK #InvenSense #MEMSMicrophone #DigitalMicrophone #I2SMicrophone #AudioSensor #AlwaysOnVoice #VoiceRecognition #WearableElectronics #IoTDevices #EmbeddedAudio #VoiceAssistant #SmartDevices #DSP #ElectronicsDesign #PCBDesign #EmbeddedSystems #HardwareEngineering #AudioElectronics

I2S Mono amplifier with headphone jack and speaker terminals. 8 PIN out for testing and connecting to other projects. Use the GAIN pin to control the Audio ICs gain and the HP PIN to detect if the headphones are connected.

I2S Mono amplifier with headphone jack and speaker terminals. 8 PIN out for testing and connecting to other projects. Use the GAIN pin to control the Audio ICs gain and the HP PIN to detect if the headphones are connected.

Tiny, Low-Cost, PCM Class D Amplifier with Class AB Performance The MAX98357AETE+T is a highly integrated digital input Class-D audio amplifier designed to convert digital audio streams directly into high-efficiency speaker output signals. It features an integrated digital-to-analog conversion stage and Class-D output driver, eliminating the need for an external DAC and significantly simplifying audio system design. The device accepts digital audio data through a standard I²S interface and delivers high-quality audio output suitable for portable electronics, smart speakers, embedded systems, Internet of Things devices, multimedia products, and consumer audio equipment. Its high-efficiency architecture minimizes power dissipation while maintaining excellent audio performance, making it particularly suitable for battery-powered applications. The MAX98357AETE+T incorporates advanced audio processing capabilities, low electromagnetic interference characteristics, and integrated protection features to ensure reliable operation in compact embedded audio designs. Features Digital input Class-D audio amplifier Integrated digital-to-analog conversion functionality Direct I²S audio interface support High-efficiency power amplification architecture Filterless output design Compact surface-mount package Low electromagnetic interference operation Integrated click-and-pop suppression Low power consumption High audio fidelity performance Simplified external component requirements Integrated thermal protection Short-circuit protection capability Suitable for mono speaker applications Optimized for embedded audio systems Electrical Characteristics Digital audio input architecture Class-D switching amplifier topology High-efficiency power conversion Low distortion audio reproduction Wide operating supply range Low standby power consumption Direct speaker drive capability Integrated audio signal processing functions Applications Smart speakers Embedded audio systems Internet of Things devices Portable electronics Voice-enabled products Multimedia equipment Consumer audio devices Wireless audio products Home automation systems Educational and development platforms Battery-powered audio applications Human-machine interface systems Package Information TQFN surface-mount package Compact footprint for space-constrained designs Suitable for automated PCB assembly Thermally optimized package construction High-density electronic product integration #commonpartslibrary #integratedcircuit #audio #audioamplifier #classd amplifier #digitalaudio #i2s #dac #embeddedaudio #consumerelectronics #iot #multimedia #signalprocessing #powermanagement #maximintegrated #analogdevices #electronicsdesign #audioelectronics #speakerdriver #embeddedsystems

Amplifier IC 2 Channel (Stereo) Class D 32-HTSSOP The TPA3116D2QDADRQ1 is an automotive-grade, high-efficiency Class-D stereo audio power amplifier IC from Texas Instruments. It is designed to drive speakers directly in compact audio systems while maintaining high output power and low heat dissipation. The device is part of the TPA3116-Q1 family, qualified for AEC-Q100 automotive applications, making it suitable for harsh environments such as vehicle infotainment and industrial audio systems. It operates from a single supply and uses advanced Class-D switching architecture to achieve high efficiency (typically >90%), reducing the need for large heat sinks and improving overall system power efficiency. 🔑 Key Features Output power capability Up to 2 × 50 W into 4 Ω (BTL mode at ~21 V) Wide supply voltage range 4.5 V to 26 V single supply operation High efficiency Class-D operation 90% efficiency with low idle power loss Stereo and mono configurations Supports BTL stereo and PBTL mono modes Differential and single-ended inputs Flexible audio input compatibility Advanced protection features Overvoltage protection Undervoltage protection Overtemperature shutdown Short-circuit protection DC detect protection with fault reporting EMI-optimized design Reduced electromagnetic interference for easier system compliance Programmable power limit Helps protect speakers and manage output levels Thermally enhanced 32-pin HTSSOP package Designed for better heat dissipation in compact layouts Typical Applications Automotive infotainment systems Car audio amplifiers Soundbars and home audio systems Portable and powered speakers Industrial audio solutions #commonpartslibrary #integratedcircuit #linearamplifier #audioamplifier

MAX98357A Series 5.5V 3.2W PCM Input Class D Audio Power Amplifier - TQFN-16 The MAX98357A/MAX98357B is an easy-to-use, low-cost, digital pulse-code modulation (PCM) input Class D amplifier that provides industry-leading Class AB audio performance with Class D efficiency. The digital audio interface automatically recognizes up to 35 different PCM and TDM clocking schemes which eliminates the need for I2C programming. Operation is further simplified by eliminating the need for an external MCLK signal that is typically used for PCM communication. Simply supply power, LRCLK, BCLK, and digital audio to generate audio! Furthermore, a novel pinout allows customers to use the cost-effective WLP package with no need for expensive vias (refer to Application Note 6643: Optimize Cost, Size, and Performance with MAX98357 WLP for more information). The digital audio interface is highly flexible with the MAX98357A supporting I2S data and the MAX98357B supporting left-justified data. Both ICs support 8 channel time division multiplexed (TDM) data. The digital audio interface accepts specified sample rates between 8kHz and 96kHz for all supported data formats. The ICs can be configured to produce a left channel, right channel, or (left/2 + right/2) output from the stereo input data. The ICs operate using 16/24/32-bit data for I2S and left-justified modes as well as 16-bit or 32-bit data using TDM mode. The ICs eliminate the need for the external MCLK signal that is typically used for PCM communication. This reduces EMI and possible board coupling issues in addition to reducing the size and pin count of the ICs. The ICs also feature a very high wideband jitter tolerance (12ns typ) on BCLK and LRCLK to provide robust operation. Active emissions-limiting, edge-rate limiting, and overshoot control circuitry greatly reduce EMI. A filterless spread-spectrum modulation scheme eliminates the need for output filtering found in traditional Class D devices and reduces the component count of the solution. The ICs are available in 9-pin WLP (1.345mm x 1.435mm x 0.64mm) and 16-pin TQFN (3mm x 3mm x 0.75mm) packages and are specified over the -40°C to +85°C temperature range. ● Single-Supply Operation (2.5V to 5.5V) ● 3.2W Output Power into 4Ω at 5V ● 2.4mA Quiescent Current ● 92% Efficiency (RL = 8Ω, POUT = 1W) ● 22.8μVRMS Output Noise (AV = 15dB) ● Low 0.013% THD+N at 1kHz ● No MCLK Required ● Sample Rates of 8kHz to 96kHz ● Supports Left, Right, or (Left/2 + Right/2) Output ● Sophisticated Edge Rate Control Enables Filterless Class D Outputs ● 77dB PSRR at 1kHz ● Low RF Susceptibility Rejects TDMA Noise from GSM Radios ● Extensive Click-and-Pop Reduction Circuitry ● Robust Short-Circuit and Thermal Protection ● Available in Space-Saving Packages: 1.345mm x 1.435mm WLP (0.4mm Pitch) and 3mm x 3mm TQFN ● Solution Size with Single Bypass Capacitor is 4.32mm2 Applications ● Single Li-ion Cell/5V Devices ● Smart Speakers ● Notebook Computers ● IoT Devices ● Gaming Devices (Audio and Haptics) ● Smartphones ● Tablets ● Cameras #commonpartslibrary #integratedcircuit #linearamplifier #mono