27.12 MHz ±10ppm Crystal 10pF 50 Ohms 4-SMD, No Lead # 7M-27.120MEEQ-T Crystal Unit Engineering Specification ## General Description The 7M-27.120MEEQ-T is a surface-mount quartz crystal resonator designed to provide a stable and accurate frequency reference for digital, wireless, communication, NFC, RFID, microcontroller, and embedded system applications. Manufactured by TXC Corporation, this crystal offers reliable frequency stability, low equivalent series resistance, and compact packaging suitable for space-constrained designs. Its surface-mount construction enables automated assembly while maintaining excellent electrical performance across a wide range of operating conditions. ## Features * Fundamental mode quartz crystal resonator * Surface-mount device package for automated PCB assembly * High frequency accuracy and stability * Low equivalent series resistance * Low power consumption * Suitable for clock generation and timing circuits * RoHS compliant construction * Reliable performance for industrial and consumer electronics applications ## Electrical Characteristics * Nominal Frequency: 27.120 MHz * Crystal Type: Fundamental Mode * Load Capacitance: 10 pF * Frequency Tolerance: ±20 ppm * Frequency Stability: ±20 ppm * Equivalent Series Resistance: 60 Ω Maximum * Drive Level: Low-power operation * Operating Temperature Range: Industrial grade * Storage Temperature Range: Extended environmental capability ## Mechanical Characteristics * Package Type: Surface-Mount Crystal * Mounting Style: SMD/SMT * Compact footprint optimized for high-density PCB layouts * Four-pad no-lead package construction ## Applications * PN532 NFC Controllers * RFID Readers and Writers * Microcontroller Clock Sources * Wireless Communication Modules * Embedded Systems * Industrial Control Electronics * Consumer Electronic Devices * IoT and Smart Device Platforms ## Compliance * RoHS Compliant * Lead-Free Construction * Suitable for Automated Assembly Processes #7M27_120MEEQT #TXC #CrystalResonator #SMDCrystal #QuartzCrystal #27_120MHz #PN532 #NFC #RFID #EmbeddedSystems #TimingReference #ElectronicsDesign

Audio D/A Converter ICs SABRE 8 Channel Smart DAC with Line Drivers, ASP2, 7mmx7mm, 48-QFN The ES9082Q is a high-performance stereo digital-to-analog converter (DAC) developed by ESS Technology for premium audio applications requiring exceptional sound quality, low power consumption, and compact integration. It utilizes the patented HyperStream® architecture and Time Domain Jitter Eliminator technology to deliver highly accurate audio reproduction with ultra-low distortion and noise characteristics. The device supports high-resolution PCM and DSD audio formats, making it suitable for portable audio devices, USB DACs, digital media players, automotive infotainment systems, wireless audio products, and professional audio equipment. The ES9082Q integrates advanced digital filtering, low-jitter clock management, and flexible audio interface support while maintaining efficient power operation for battery-powered applications. Designed for compact embedded audio systems, the ES9082Q provides excellent dynamic range and signal fidelity while minimizing external component requirements. Its architecture enables high-quality playback performance across a wide range of consumer and industrial audio applications. Electrical Characteristics Supply voltage supports low-voltage digital and analog power domains optimized for portable and embedded applications. The device operates with low power consumption while maintaining high audio performance. Integrated power management supports efficient system-level implementation. Audio Performance The converter supports high-resolution stereo audio output with advanced oversampling and noise shaping technology. It delivers ultra-low total harmonic distortion plus noise performance and high dynamic range suitable for high-fidelity audio playback systems. PCM audio data rates support standard and high-resolution formats up to 32-bit depth with sampling frequencies extending to high-definition audio ranges. Native DSD playback capability is also supported for audiophile-grade applications. Digital Audio Interface The ES9082Q supports industry-standard serial audio interfaces including I²S, left-justified, and related digital audio communication protocols. Flexible master and slave clocking configurations enable compatibility with a wide variety of host processors and audio controllers. Integrated jitter suppression circuitry improves clock stability and minimizes timing-induced audio artifacts. Integrated Features The device incorporates digital interpolation filters, volume control functions, soft mute capability, and programmable audio processing features. Internal PLL and clock management circuitry reduce external timing component requirements. Built-in low-noise analog output stages simplify audio signal chain design and reduce overall PCB footprint. Package Information The ES9082Q is provided in a compact surface-mount package optimized for space-constrained audio products. The package supports automated assembly and high-density PCB layouts commonly used in portable and embedded systems. Typical Applications Applications include portable audio players, USB DAC modules, wireless speakers, automotive audio systems, headphones, digital amplifiers, embedded multimedia devices, smart home audio equipment, and professional audio playback systems. #commonpartslibrary #integratedcircuit #audioic #dac #stereodac #esstechnology #es9082q #highresolutionaudio #audiophile #digitalaudio #analogaudio #i2s #dsd #pcm #embeddedaudio #consumerelectronics #portableaudio #usbdac #hifi #signalprocessing #lownoise #lowdistortion #electronicsdesign #pcbdesign #hardwareengineering #electroniccomponents #semiconductor #mixedsignal #audioelectronics #soundquality

RF Front End 2.4GHz Zigbee® 22-MCM (3.5x3) #commonpartslibrary #rf #wireless #zigbee

General ISM < 1GHz Transceiver Module 902MHz ~ 928MHz Integrated, Trace Surface Mount #commonpartslibrary #tranceiver #module #wireless #rf

IC RF TxRx Only General ISM < 1GHz 150MHz ~ 174MHz, 300MHz ~ 348MHz, 387MHz ~ 470MHz, 779MHz ~ 956MHz 20-VFQFN Exposed Pad #commonpartslibrary #rf #wireless #transceiver

RF Balun 4.5MHz ~ 3GHz 1:1 5-SMD #RF #Wireless #Balun