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Товары (226)
LAN8720A-CP-TR - RMII 10/100 Ethernet PHY Transceiver | Microchip
The Microchip Technology LAN8720A-CP-TR is a small-footprint, low-power 10BASE-T/100BASE-TX Ethernet PHY transceiver with an RMII interface to the MAC, housed in a 24-pin QFN (4x4 mm) package. It supports full-duplex 10/100 Mbps operation, HP Auto-MDIX for direct or crossover cable use, and auto-negotiation to select the optimal speed and duplex mode. The device operates from a single 3.3V supply with Microchip's flexPWR technology and provides 1.8V/2.5V/3.3V variable-voltage I/O for direct connection to common MAC ASICs. An Ethernet PHY (physical layer transceiver) is the analog front-end of an Ethernet link, sitting between the RJ-45 magnetics and the MAC controller. It handles line encoding/decoding, clock recovery, link training, and signal shaping so the digital MAC can exchange frames with the network. The LAN8720A belongs to the 10/100 Fast Ethernet PHY family, positioned below Gigabit PHYs in the network interface hierarchy and above purely digital MAC-only designs that require an external analog transceiver. Key features include an integrated 1.2V LDO regulator that can be sourced externally, very low power consumption (claimed up to 40% lower than prior Microchip PHYs), a hardware-strapped configuration for default operation, and commercial temperature grade (0 C to +85 C). The device also includes Energy-Efficient Ethernet (EEE) support and a SMI (Serial Management Interface) for PHY register access. Its 24-pin QFN footprint makes it the industry's smallest 10/100 Ethernet transceiver solution in this package size. Architecture-wise the LAN8720A integrates a 100BASE-TX DSP-based PHY core, ADC/DAC analog blocks, line driver, HP Auto-MDIX termination switches, and a digital control block with MII/RMII muxing. The flexPWR architecture allows the core to run from 1.2V while the I/O rails stay at 1.8V/2.5V/3.3V, eliminating level shifters when paired with most modern SoCs. Power-down and energy-detect modes further reduce quiescent draw for low-power designs. Typical applications include consumer broadband gateways, IP set-top boxes, IP phones, game consoles, industrial Ethernet nodes, and MCU-based designs such as ESP32 ethernet MAC add-on boards where the LAN8720A provides the analog PHY. It is also commonly seen in printers, networked embedded controllers, and small-office routers where space and BOM cost matter more than Gigabit throughput. When designing with this part, select the correct external reference clock (25 MHz) source and place the device close to the RJ-45 jack magnetics to minimize EMI. Verify that the MAC supports RMII (not just MII) and route the 50 MHz RMII reference clock with controlled impedance to avoid jitter. Leave sufficient ground flooding under the exposed pad for thermal dissipation. This page synthesizes distributor stock, drop-in alternatives, design notes and comparison data that go beyond the manufacturer datasheet, helping engineers shorten the LAN8720A-CP-TR selection and validation cycle.
LBUA0VG2BP-741 - NXP SR150 UWB Transceiver Module | Murata
The Murata Electronics LBUA0VG2BP-741 is an ultra-small Ultra-Wideband (UWB) module, the Murata Type 2BP, which integrates the NXP SR150 UWB chipset together with clock, filters, and peripheral components in a surface-mount package with antenna not included. It is a multiprotocol RF transceiver module implementing IEEE 802.15.4 UWB communication for precision ranging and secure fine-ranging applications. An Ultra-Wideband module is a short-range radio transceiver that transmits data across a very wide spectrum (several gigahertz of bandwidth) at very low power density. Within the wireless-connectivity hierarchy, UWB sits alongside Bluetooth Low Energy, Zigbee, and Wi-Fi as a personal-area-network technology, but it is distinguished by time-of-flight measurement capability, which enables centimeter-level distance and positioning accuracy that narrowband radios cannot achieve. Key features of the LBUA0VG2BP-741 include the integrated NXP SR150 UWB chipset, onboard clock and filtering, channels 9 support, low current consumption, and a compact, high-quality form factor. DigiKey lists the part as an 802.15.4 UWB transceiver module, surface mount, antenna not included, allowing designers to select an antenna optimized for their enclosure and region. The module architecture offloads RF design complexity from the customer PCB, since matching networks and sensitive RF routing are already engineered inside the certified module. Technically, the module builds on the NXP SR150, which implements ultra-wideband impulse-radio signaling compliant with the IEEE 802.15.4z-era UWB physical layers used in FiRa-class ranging. Time-of-flight and angle-related measurements are performed between compliant devices for secure keyless entry, asset tagging, and indoor positioning. Because the SR150, crystal clocking, and RF filters are pre-integrated, the host MCU communicates over a digital interface, dramatically reducing certification and RF-tuning effort compared with a discrete chipset design. Typical applications include UWB keyless-entry systems for automotive and access control, real-time location systems (RTLS) and indoor asset tracking, secure contactless payment and device-to-device ranging in IoT devices, and drones or robotics requiring precise relative positioning. Its low current consumption and small size make it well suited to battery-powered tags and compact sensor nodes. Design consideration: since the antenna is not included, antenna selection, feed-line layout, and placement directly affect conducted performance and regulatory compliance; follow the Murata Type 2BP specification document for recommended antenna and layout guidance. This page synthesizes distributor listings, availability signals from seven distributors via Octopart, and design context not found in the manufacturer specification sheet alone. Pricing tiers are marked as needing verification as of 2026-10-20.
LBUA2ZZ2DK-882 - UWB + Bluetooth LE Combo Module | Murata
The Murata Electronics LBUA2ZZ2DK-882 is a Type 2DK all-in-one Ultra-Wideband (UWB) and Bluetooth LE combo module covering 6.25 GHz to 8.25 GHz for UWB plus 2.4 GHz Bluetooth v5.0, housed in an LGA-127 surface-mount package (19.6 x 18.2 x 2.3 mm) with an on-board chip antenna. An Ultra-Wideband module is a short-range, high-precision RF transceiver that transmits narrow pulses across a wide spectrum, enabling centimeter-level ranging and secure fine-ranging. Within the wireless connectivity hierarchy, it sits alongside BLE, Wi-Fi and GNSS as a radio module, and combo modules such as this integrate both the UWB PHY and a companion short-range radio plus host MCU on a single certified, pre-tested footprint, dramatically reducing RF design effort compared with discrete chipsets. Key features include the NXP Trimension SR040 UWB chipset for IEEE 802.15.4z-class fine ranging, the NXP QN9090 Bluetooth LE and ARM Cortex-M4-based MCU for application processing, and an integrated antenna with matching components and crystals already on-board. This all-in-one integration means developers avoid antenna tuning and RF layout iterations, achieving regulatory radio certification with a single module. Technically, the module combines two independent radio chains: the SR040 handles UWB channel access in the 6.25-8.25 GHz band used for secure distance bounding, while the QN9090 provides Bluetooth v5.0 LE connectivity for provisioning, data backhaul and device-to-device communication. Low-power design supports coin-cell battery operation, which is central to the tag and tracker use case. Typical applications include UWB tags and trackers, smart-door locks and access control, indoor positioning and asset tracking in factories and hospitals, and general IoT devices that need precise ranging plus a BLE control link. A key design consideration is power budgeting: UWB ranging sessions dominate energy consumption, so duty-cycle the UWB radio and rely on BLE for standby communication to maximize coin-cell life. This page synthesizes distributor inventory data, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet, verified as of 2026-10-20.
LMX2531LQ1742/NOPB - High-Performance RF Synthesizer | TI
The LMX2531LQ1742/NOPB is a high-performance frequency synthesizer system with integrated VCO from Texas Instruments. It combines a fully integrated delta-sigma PLL and VCO with a fully integrated tank circuit, along with integrated third and fourth poles that are adjustable. The device operates over a frequency range of 1760 MHz to 1866 MHz and is housed in a 36-pin WQFN (NJG) package with an exposed pad. It is designed for low power consumption and high performance, making it suitable for a wide range of RF applications. A frequency synthesizer is a key building block in RF and wireless systems, generating precise local oscillator signals for upconversion and downconversion. The LMX2531 integrates the PLL, VCO, and loop filter components, reducing external component count and board space. This integration simplifies design and improves reliability, as the critical RF path is contained within a single device. Key features include ultra-low noise and high-precision LDOs integrated for the PLL and VCO, which yield higher supply-noise immunity and more consistent performance. The device supports a wide supply voltage range and includes a programmable charge pump, phase frequency detector, and fractional-N or integer-N operation. The integrated VCO covers the specified frequency band with excellent phase noise performance, essential for communication systems. The LMX2531 uses a delta-sigma fractional-N architecture, allowing fine frequency resolution while maintaining low phase noise. The integrated LDOs isolate the sensitive analog circuits from supply noise, improving overall system performance. The device operates over the industrial temperature range of -40°C to +85°C, ensuring reliability in demanding environments. Typical applications include wireless infrastructure, base stations, point-to-point radios, satellite communications, and test and measurement equipment. The wide frequency range and low phase noise make it ideal for local oscillator generation in transceivers and frequency hopping systems. When designing with the LMX2531, careful attention must be paid to power supply decoupling and PCB layout to minimize noise coupling. The exposed pad should be soldered to a ground plane for thermal and electrical performance. The device requires an external loop filter, which should be designed according to the application's phase noise and lock time requirements.
LMX2572LP - 2GHz Low Power RF Synthesizer | Texas Instruments
The Texas Instruments LMX2572LP is a low-power, high-performance wideband RF synthesizer that generates frequencies from 12.5 MHz to 2 GHz without an internal doubler. It integrates LDOs from a single 3.3-V supply, eliminating the need for external low-noise LDOs. The device consumes only 70 mA at 3.3 V, making it ideal for battery-powered and portable applications. An RF synthesizer is a key building block in communication systems, generating precise local oscillator signals for frequency conversion. It typically consists of a phase-locked loop (PLL) with a voltage-controlled oscillator (VCO), frequency dividers, and a phase detector. The LMX2572LP integrates these functions, providing a complete frequency synthesis solution in a compact 40-pin VQFN package. Key features include excellent phase noise of -124 dBc/Hz at 100-kHz offset with an 800-MHz carrier, a PLL figure of merit of -232 dBc/Hz, and normalized 1/f noise of -123.5 dBc/Hz. The 32-bit N-divider allows fine frequency resolution, and the device supports FSK modulation for digital mobile radio (DMR) and wireless microphone applications. The LMX2572LP uses a wideband PLL architecture with an integrated VCO, achieving low phase noise and fast settling. The integrated LDOs provide clean supply rails, reducing external component count and improving noise performance. The device operates from a single 3.3-V supply, simplifying power supply design. Typical applications include DMR radios, wireless microphones, test and measurement equipment, and any system requiring a low-power, low-noise frequency source. The wide frequency range and FSK support make it versatile for various wireless communication standards. When designing with the LMX2572LP, ensure proper decoupling of the power supply pins and use a clean reference clock to achieve optimal phase noise. The device's SPI interface allows easy configuration of frequency, modulation, and output power settings.
LORA915 - 915MHz LoRa Transceiver Module | Olimex | IoT
The Olimex LORA915 is a 915 MHz LoRa transceiver module for the General ISM sub-1 GHz band, based on the Semtech SX1276 radio transceiver with an on-board impedance-matching network and a U.FL antenna connector (antenna not included), supplied as a surface-mount open-source-hardware board. A LoRa module is a sub-GHz wireless transceiver subsystem that implements Semtech's LoRa spread-spectrum modulation on top of a silicon transceiver such as the SX1276. Within the IoT connectivity hierarchy it sits between a bare RF chip and a fully integrated LoRaWAN node: the module provides the RF front end, matching network, and connector, while the host MCU supplies the LoRaWAN stack. LoRa's chirp spread spectrum modulation delivers long range at very low data rates, making it the dominant technology for battery-powered telemetry in smart cities, agriculture, and industrial monitoring. Key features of the LORA915 include operation in the 915 MHz ISM band (the LoRa band used in North America), the Semtech SX1276 transceiver with LoRa and FSK/OOK modulation support, a U.FL (IPEX) connector for external antennas, and surface-mount integration. Olimex publishes the full hardware design as open-source hardware on GitHub (OLIMEX/LoRa-868-915), giving engineers complete schematics for design reuse. The SX1276 architecture combines a low-IF receiver with programmable spreading factors, enabling the classic LoRa trade-off between link budget and data rate. Because the module is a board-level design rather than a castellated chip module, integration is typically via its connector interface rather than direct PCB land pattern. Related family members include the LORA868 (868 MHz for Europe), LORA915-ANT (integrated PCB trace antenna), MOD-LoRa915 (UEXT connector for direct attachment to UEXT-equipped Olimex boards), and MOD-LoRa915-ANT (UEXT plus +2 dBi PCB antenna with 10 cm cable). Typical applications include North American LoRaWAN end nodes, Meshtastic-style mesh networks, agricultural sensor telemetry, smart-metering, and long-range battery-powered IoT sensors. The 915 MHz band alignment makes this module the correct choice for US915 and AU915 regional plans. Design consideration: always attach a suitable external antenna before powering the SX1276 transmitter - transmitting without an antenna can stress the PA output stage. Choose the 915 MHz variant only for 915 MHz regional plans; 868 MHz and 915 MHz antennas are not interchangeable due to different tuning. This page synthesizes distributor availability data, Olimex open-source-hardware documentation, family cross-references, and practical design notes not found on the manufacturer product page alone.
LR2012 - Sub-GHz LoRa Plus 4th-Gen Transceiver | Semtech
The Semtech LR2012 is a 4th-generation LoRa Plus sub-GHz RF transceiver IC supporting ISM bands from 150 MHz to 960 MHz, packaged in a 32-pin VFQFN with exposed thermal pad. It delivers best-in-class sensitivity down to -141.5 dBm and up to +22 dBm transmit output power, while remaining cost-optimized for traditional LPWAN applications. What is a LoRa transceiver? A LoRa (Long Range) transceiver is a low-power, long-range radio IC that uses Semtech's patented chirp spread-spectrum modulation to achieve kilometers of wireless range at milliwatt-level transmit power. LoRa transceivers sit in the broader taxonomy of sub-GHz wireless transceivers, which themselves are a sub-class of short-range / wide-area network (LPWAN) radios, sitting within RF and wireless semiconductors. The LR2012 targets cost-sensitive, high-volume IoT endpoints where the LR2022's multi-band capability and the LR2021's broader feature set are not required. Key features include data rates up to 125 kbps for LoRa modulation and up to 2 Mbps for FSK modulation, full backward compatibility with LoRaWAN, LR-FHSS, and legacy OOK devices, plus very good ESD robustness on all pins. The part is designed to be drop-in compatible with the LR2021 and LR2022 family members, allowing engineers to migrate designs across the Gen 4 portfolio without software or hardware rework when features align. Architecturally, the LR2012 integrates a sub-GHz radio front-end, a digital baseband engine running Semtech's 4th-generation LoRa IP, and an SPI control interface. The transceiver supports continuous-duty cycle operation and offers selectable bandwidth, spreading factor, and coding rate to optimize the range-versus-throughput tradeoff. Both the LR2012 and its Gen 4 siblings offer a unified SPI command set, easing firmware portability across the family. Typical applications include LoRaWAN-based smart utility meters (electricity, water, gas), agricultural soil-moisture and livestock sensors, building-automation HVAC and access-control nodes, industrial tank-level and asset-tracking sensors, and city-wide street-lighting controllers. The LR2012's sub-GHz-only focus makes it the cost-optimized choice when the multi-band capability of the LR2022 is unnecessary. For battery-powered deployments the part's low receive current extends multi-year lifetime on a single cell. When designing with the LR2012, observe proper RF impedance matching at the antenna port and provide adequate decoupling near each supply pin. The exposed pad (EP) must be soldered to a continuous copper ground plane to meet thermal and RF performance targets. The transceiver also requires region-specific matching networks for 868 MHz (Europe/India), 915 MHz (North America), and 490 MHz (China) ISM bands. This page synthesizes verified distributor pricing, family-level cross references, and practical design guidance that complement the official datasheet.
LR2022 - Dual-Band LoRa Plus Transceiver | Semtech
The Semtech LR2022 is a fourth-generation LoRa Plus dual-band multi-region sub-GHz/2.4 GHz RF transceiver IC housed in a 32-pin VFQFN exposed-pad package. It is designed as an IC RF TxRx-only device targeting LoRaWAN and proprietary LoRa modulation in the general ISM > 1 GHz bands, supporting both sub-GHz ISM and 2.4 GHz industrial-scientific-medical operation from a single SKU. The LR2022 integrates two distinct receiver inputs (RFI_HF and RFI_LF) so that one radio front-end covers global sub-GHz deployments and the worldwide 2.4 GHz band without external band-switch components. An LoRa transceiver is a low-power long-range radio IC that uses Chirp Spread Spectrum (CSS) modulation to deliver multi-kilometer communication at very low receive currents, enabling battery-powered Internet of Things (IoT) nodes. LoRa transceivers belong to the broader family of low-power wide-area network (LPWAN) radios, sitting alongside sub-GHz FSK/FSK-OOK transceivers in the wireless connectivity taxonomy. The LoRa Plus generation extends the legacy LoRa modem with multi-band RF and improved link budget while preserving pin and API compatibility with prior LoRa parts for drop-in migration. Key features include sub-GHz LoRa modulation, 2.4 GHz LoRa operation, dual receiver inputs (RFI_HF, RFI_LF), low RX current for battery-powered end nodes, and an integrated multi-region synthesizer that reduces external BOM and PCB footprint. The device supports LoRaWAN protocol stacks and proprietary point-to-point links, enabling asset tracking, smart metering, environmental monitoring, and satellite NTN IoT via the 2.4 GHz band. According to the Semtech LR20xx datasheet, the LR2021/LR2022 share the same package as the LR2012 single-band part, simplifying SKU strategy for OEMs serving both sub-GHz-only and dual-band deployments. The architecture combines an advanced RF front-end, a digital baseband modem optimized for LoRa CSS, and a host SPI interface for microcontroller integration. Compared with the prior Semtech SX1262 and LR1121, the LR2022 fourth-generation IP offers improved sensitivity, faster time-on-air, and lower power consumption per transmitted bit. The 32-VFQFN package includes an exposed thermal pad, allowing the part to be hand-soldered or placed by standard SMT lines. Typical applications include global asset trackers that roam between sub-GHz regional bands and 2.4 GHz NTN gateways, multi-region smart-meter modules, industrial sensor nodes, agricultural IoT deployments, and consumer connected devices needing a single-SKU worldwide radio. The part pairs naturally with low-power MCUs such as STM32WL or ESP32-S3 over its SPI interface. When designing with the LR2022, observe Semtech reference-layout guidelines: place the RFI_HF/RFI_LF traces as 50 ohm controlled-impedance lines, keep the exposed pad soldered to a continuous ground plane, and follow the host MCU's SPI timing budget for interrupt-driven packet handling. This page synthesizes distributor availability, package data, and practical design considerations drawn from manufacturer documentation and authorized stockists.
MFRC52201HN1,115 - 13.56MHz RFID Reader IC | NXP | MIFARE
The NXP MFRC52201HN1,115 is a highly integrated 13.56 MHz RFID/NFC reader IC supporting ISO/IEC 14443 A and MIFARE communication, operating from a 2.5V to 3.6V supply in a 32-pin HVQFN (VFQFN) package with exposed pad. An RFID reader IC (also called a contactless reader front-end or NFC initiator IC) is a wireless transceiver integrated circuit that generates a 13.56 MHz carrier, modulates commands onto it, and demodulates responses from passive transponders such as MIFARE cards and NFC tags. It sits within the RF and wireless IC hierarchy, alongside NFC controllers and RFID transceiver chips, forming the analog/digital front end between a host microcontroller and the contactless antenna. Key features include support for the ISO/IEC 14443 A/MIFARE protocol, three host interfaces (SPI up to 10 Mbit/s, I2C, and serial UART), and an integrated crypto-1 engine for MIFARE Classic authentication. The exposed-pad HVQFN-32 package provides low-inductance ground return for the RF front end and good thermal performance in a compact 5x5 mm-class footprint. Technically, the MFRC522 integrates the full analog front end: low-dropout voltage regulators for the transmitter supply, a 13.56 MHz oscillator driver for an external crystal, receiver gain stages, and CRC coprocessor. The internal frame handling supports FIFO buffering of 64 bytes, and programmable timers support protocol framing. This reduces host CPU load compared with bit-banged implementations. Typical applications include 13.56 MHz smart-card readers, point-of-sale terminals, embedded access control, and Arduino/Raspberry Pi hobbyist NFC modules, where the SPI interface and 3.3V supply map directly onto common microcontroller systems. Design consideration: antenna matching is critical - follow the NXP antenna design guide for L-matching network component values, and note the MFRC52202HN1 (version 2.0) offers improved rough-condition stability and an additional timer prescaler while remaining fully compatible. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not consolidated in the manufacturer datasheet.
MFRC52202HN1,157 - 13.56MHz MIFARE NFC Reader IC | NXP
The NXP Semiconductors MFRC52202HN1,157 is a standard-performance 13.56 MHz contactless reader/writer front-end IC supporting ISO/IEC 14443 A/MIFARE and NTAG protocols, operating from a 2.5 V to 3.3 V supply in a 32-pin HVQFN (VFQFN) exposed-pad package. A 13.56 MHz NFC reader front-end is a radio-frequency integrated circuit that generates the carrier field, modulates and demodulates data, and handles the ISO/IEC 14443 Type A protocol framing needed to communicate with contactless cards, MIFARE classics, and NTAG tags. It sits inside the NFC/HF radio hierarchy: contactless reader IC -> HF RFID transceiver -> RF transceiver -> mixed-signal semiconductor, bridging the analog RF domain and the digital host system. Key features include the 13.56 MHz carrier for contactless communication, support for ISO/IEC 14443 A, MIFARE and NTAG card families, flexible host interfaces (SPI, I2C, and serial UART selected via pin strap options), and a compact 32-VFQFN exposed-pad package that aids thermal dissipation and RF grounding. An integrated analog front-end with low-power mode makes it suitable for battery-conscious reader designs. Technically, the device integrates the complete analog front end: a 13.56 MHz oscillator interface for an external crystal, Tx drivers feeding an external antenna matching network, Rx gain stages for load-modulated tag responses, and a digital engine handling framing, CRC, and the parallel-host or serial-host register interface. Version 2.0 silicon refinements improve RF timing robustness compared with the original MFRC522 v1.0. Typical applications include access-control card readers, embedded NFC/RFID development platforms (notably Arduino RC522 shields), smart labeling and tagging stations, and point-of-interaction read stations for MIFARE and NTAG credentials. The 2.5 V to 3.3 V supply range pairs naturally with 3.3 V microcontrollers. Design consideration: this part is Not Recommended for New Designs; NXP directs new designs to the CLRC663 plus family, so budget for migration in long-lived products. RF performance depends heavily on the antenna matching network and PCB ground plane. This page synthesizes distributor pricing, availability, drop-in family alternatives, and practical migration guidance not consolidated in the manufacturer datasheet.
MRF5S19060NR1 - 1930-1990 MHz 12W RF Power LDMOS | NXP
The NXP MRF5S19060NR1 is an N-channel enhancement-mode lateral MOSFET (LDMOS) designed for broadband commercial and industrial RF power amplifier applications in the 1930-1990 MHz band. It delivers 12 W average output power at 28 V with a typical gain of 14 dB and is housed in a TO-270 WB-4 over-molded plastic package. The device is rated at 65 V drain-source breakdown and operates from a 28 V nominal supply with 750 mA quiescent bias at 1.99 GHz test conditions. An RF power LDMOS transistor is a specialized MOSFET structure built on a laterally-diffused metal-oxide-semiconductor process. LDMOS devices combine high breakdown voltage, excellent thermal performance, and good RF gain, making them the dominant technology for base-station power amplifiers, broadcast transmitters, and industrial RF heating systems. Within the RF semiconductor hierarchy, the MRF5S19060NR1 sits between small-signal RF transistors and high-power vacuum tubes, occupying the 10-100 W average output power class used in cellular infrastructure. Key features include 14 dB typical gain at 1.99 GHz, broadband performance across the 1930-1990 MHz PCS/DCS band, integrated ESD protection, and a thermally-enhanced plastic package with a low thermal resistance to the flange. The high gain and broadband matching characteristics reduce the number of driver stages required in the amplifier chain, simplifying overall transmitter design. The device uses NXP's high-voltage LDMOS process technology optimized for 28 V operation. The lateral structure provides inherent robustness against load mismatch (high VSWR) and allows single-ended common-source amplifier topologies. Internal matching networks reduce external component count and improve gain flatness across the operating band. Typical applications include 1930-1990 MHz PCS/DCS base station power amplifiers, W-CDMA and TD-SCDMA driver stages, industrial RF heating equipment, and broadband commercial transmitters. Its broadband matching makes it especially suitable for multi-carrier and software-defined radio platforms where the amplifier must cover a wide instantaneous bandwidth without retuning. Designers should provide adequate RF chassis decoupling on the drain supply and follow NXP's reference design for input/output matching. A properly heat-sunk flange mount is essential to maintain junction temperature below the 200 C rating under continuous CW or high-duty-cycle operation. This page synthesizes verified distributor pricing, drop-in alternatives from the same NXP RF power family, and practical design notes not found in the manufacturer datasheet alone.
MRF8P23160WHSR3 - 160W RF Power MOSFET 2.3-2.4GHz | NXP
The NXP MRF8P23160WHSR3 is a single W-CDMA lateral N-Channel RF Power MOSFET designed for base station applications covering 2300 to 2400 MHz with 30 W average output power at 28 V VDD. Housed in the NI-780-4 (CASE 465M-01) ceramic flangeless package, it integrates the high-voltage HV8 process with a lateral diffusion architecture optimized for Doherty amplifier topologies used in 4G LTE infrastructure. Key specs include 65 V V(BR)DSS, 14.1 dB power gain, 600 mA quiescent bias, and 28 V test voltage. An RF Power MOSFET is a specialized lateral double-diffused (LDMOS) transistor engineered for high-frequency, high-power amplification in wireless base stations. Unlike small-signal MOSFETs, RF power MOSFETs integrate impedance-matching structures, ceramic packaging, and gold metallization to minimize parasitic losses and thermal resistance. MRF8P23160WHSR3 belongs to the HV8 LDMOS family, positioned in the hierarchy: LDMOS -> RF Power MOSFET -> RF Transistor -> Discrete Semiconductor. This device is engineered for Doherty configurations where two amplifiers combine a main and a peaking path to maximize efficiency across modulation peaks. Key differentiating features include 65 V drain-source breakdown voltage providing wide margin above the 28 V operational rail, 14.1 dB power gain at 2.32 GHz enabling multi-stage amplifier cascades, and a low-thermal-resistance NI-780-4 ceramic package capable of dissipating 160 W peak RF output. The lateral N-channel enhancement-mode design supports wide instantaneous bandwidth across the 2300-2400 MHz band and integrates electrostatic discharge (ESD) protection at the gate. Architecturally, the device uses a Freescale (now NXP) lateral HV8 LDMOS process, which places source, channel, and drain laterally under the gate. This geometry reduces on-resistance per unit area and provides intrinsic thermal stability for continuous-wave (CW) and pulsed RF operation. The NI-780-4 package features a ceramic body with flat leads designed for surface-mount placement onto a copper flange or thermal spreader. Typical applications include 4G LTE base station power amplifiers in the 2.3-2.4 GHz TDD/FDD bands, Doherty amplifier final stages for macro-cell transmitters, and W-CDMA driver amplifiers for cellular repeaters. The wide bandwidth also makes the device usable for multi-carrier GSM and TD-LTE amplifier chains. Per the datasheet, single-carrier W-CDMA drive-up at VDD=28V delivers 30 W average output at the rated quiescent current. Design consideration: When designing a Doherty amplifier with this part, maintain VGS bias near the Class AB region (~600 mA IDQA at VDD=28 V) to balance linearity and efficiency. Ensure the thermal interface between the ceramic body and the heat spreader uses a thin layer of thermal compound to minimize junction-to-case resistance, and verify input/output matching networks are tuned to the specific 2.32 GHz target within the 2300-2400 MHz operating band. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MRFE8VP8600HR5 - 140W 470-870MHz 50V RF LDMOS | NXP
The NXP MRFE8VP8600HR5 is a 140 W average, 470-870 MHz, 50 V N-channel enhancement-mode lateral MOSFET (LDMOS) RF power transistor housed in the NI-1230 (SOT1787) ceramic package. It is designed for UHF TV broadcast transmitters and integrates an on-chip input matching network that simplifies Doherty and push-pull amplifier layouts while maintaining uniform power distribution between paired devices. An RF power LDMOS transistor is a laterally diffused metal-oxide-semiconductor FET engineered to deliver high continuous-wave and pulsed RF output power at high frequencies, combining the ruggedness of a power MOSFET with the frequency response required for narrowband broadcast and ISM links. Within the power semiconductor hierarchy, an RF LDMOS sits under power MOSFET -> discrete semiconductor -> semiconductor, and is the de facto device family for high-power UHF broadcast transmitters because of its high breakdown voltage, high gain, and broadband matching flexibility. Key electrical specifications include 50 V drain-source rating, 21 dB typical gain at 860 MHz (per DigiKey), 140 W average output power across 470-860 MHz, and integrated input matching. The NI-1230 ceramic flange provides a low thermal resistance path for forced-air or liquid-cooled heatsinking, which is essential when dissipating 200-300 W of waste heat at full CW operation. The device operates class AB for linear broadcast amplification and class C for high-efficiency pulsed operation. Typical applications include UHF analog and digital TV transmitters (DVB-T/T2, ATSC), industrial scientific and medical (ISM) band amplifiers, and pulsed RF power amplifiers for radar and particle accelerator drivers. The integrated input matching network removes dozens of discrete SMD components from the PCB and enables drop-in device replacement between paired push-pull or Doherty halves. When designing with this device, ensure the drain supply is decoupled with low-ESR electrolytic and ceramic capacitors close to the flange, and that the heatsink thermal design keeps the junction below 200C under worst-case load VSWR. Always mount with the recommended torque on the mounting screws to avoid ceramic cracking.
MS22300 - 10G Dual-CDR Multi-Rate Optical Transceiver | Minisilicon
The Minisilicon MS22300 is an integrated 10G dual-CDR multi-rate transceiver chip combining a clock and data recovery function, an EML laser driver, and a limiting amplifier in a QFN32 4x4 package. The verified source data identifies it as a bidirectional transceiver solution for low-power SFP+ retiming modules and SONET-related optical links, with an on-chip APC function, a standard IIC interface, and digital control circuitry. The available information also describes support for 10G ER/ZR optical transceiver designs and pairing with the MS56-series 10G TIA family. A clock and data recovery (CDR) circuit is a high-speed signal-conditioning component that extracts timing information from a serial data stream and regenerates a clean, phase-aligned output. In an optical transceiver, the CDR works with the laser driver and receive-side limiting amplifier to support reliable data transfer over optical media. The MS22300’s combination of these functions can reduce the external signal-chain component count in a retiming-module design, while its digital control interfaces provide a path for configuration and optimization. The MS22300 product information highlights an improved APC loop with extended dynamic range and high resolution. APC means automatic power control, a feedback mechanism used to regulate optical output power and compensate for component and environmental variation. The verified manufacturer page describes MS22300 as an EML driver, limiting amplifier, and CDR solution intended to support multiple optical emission components. However, complete electrical timing, supply-voltage, power-consumption, temperature, and pin-level specifications are not present in the supplied data, so those values remain marked for engineering verification. The chip is positioned for 10G ER/ZR transceiver implementations. ER and ZR optical reaches are used in optical-networking systems where transmission distance and link-budget requirements differ. Because the supplied evidence specifically mentions 10G ER/ZR support, SFP+ retiming modules, SONET applications, and MS56-series TIA pairing, those are the primary design contexts supported by this record. The QFN32 4x4 package can also support compact module layouts, but the exposed-pad and thermal details must be confirmed from the official MS22300 datasheet before PCB release. This page combines the verified manufacturer descriptions with transparent data gaps rather than inventing unprovided electrical specifications. Engineers should confirm supply rails, high-speed differential I/O requirements, pin mapping, protocol coverage, optical-launch behavior, receive sensitivity, thermal limits, and control-register compatibility with the manufacturer datasheet and application support. For a production design, the MS22300 should be treated as a specialized optical-transceiver IC, not as a generic digital logic or memory component.
MSN3420-CB2RC - 48x25GbE 12x100GbE Spectrum-2 Switch | NVIDIA
The NVIDIA Mellanox MSN3420-CB2RC is a 1U rack-mountable Open Ethernet switch delivering 48x 25GbE SFP28 ports plus 12x 100GbE QSFP28 ports (60 ports total, 100000 Mbps per uplink group), built on the NVIDIA Spectrum-2 ASIC and shipped with NVIDIA Cumulus Linux pre-installed, with 2x AC power supplies and C2P (connector-to-panel) airflow. A data center Ethernet switch is a Layer 2/Layer 3 managed networking device that interconnects servers, storage, and uplinks within top-of-rack (ToR), leaf, and spine topologies. It sits in the network hierarchy above NICs and below core routers, and belongs to the broader family of switching systems built on merchant silicon switch ASICs. Key features include a high-density 25G server-access port count with 100G uplink readiness, Open Ethernet programmability via Cumulus Linux on an integrated x86 CPU, and dual hot-swappable AC PSUs for redundancy. The Spectrum-2 ASIC supports port speeds spanning 1GbE to 400GbE across the SN3000 family, giving migration flexibility from 10G to 25G access. Technically, the Spectrum-2 generation uses a monolithic on-chip packet buffer supporting high-bandwidth packet reads and writes, enabling consistent, predictable cut-through performance. The architecture simplifies buffer management and traffic scheduling while supporting intelligent congestion management, including Explicit Congestion Notification (ECN), which matters for RoCE and cloud-scale workloads. Typical applications include top-of-rack server access in web-scale IT, leaf switches in leaf-spine cloud networks, hyperconverged storage fabrics, and data analytics clusters - environments where 25G server connectivity and low, consistent latency are decisive. Design consideration: verify airflow direction before ordering - CB2RC uses C2P (front-to-back exhaust per NVIDIA documentation); pairing it with the wrong rack cooling direction causes thermal throttling. Operating range is 0 to 40 degrees C. This page synthesizes distributor pricing, sibling-SKU alternatives, and deployment design notes not consolidated in the NVIDIA datasheet.
MSN3700-CS2FC - 32x100GbE Spectrum-2 Switch | NVIDIA Mellanox
The NVIDIA Mellanox MSN3700-CS2FC is a 1U rack-mountable data center Ethernet switch built on the Spectrum-2 ASIC, delivering 32x 100GbE QSFP28 ports with 6.4 Tbps switching capacity, a forwarding rate of 4.76 Bpps, and a cut-through latency of 425 ns in a short-depth chassis with P2C (back-to-front) airflow and dual AC power supplies. A data center spine/leaf switch is the core building block of cloud-scale layer-2 and layer-3 network fabrics. In the network hierarchy, a spine switch aggregates leaf switches to form non-blocking Clos topologies; the Spectrum-2 platform belongs to the broader family of Open Ethernet switching systems designed for software-defined networking (SDN) and runs the ONIE-installed Cumulus Linux network operating system on an x86 management CPU. Key features include fully splittable QSFP28 ports supporting speeds from 1GbE to 100GbE, expandable to 128x 10/25GbE ports with splitter cables, dual redundant AC power supplies rated 100-264 V, and L3 managed switching with advanced SDN capabilities. The Spectrum-2 ASIC provides consistent low latency and deep buffering for East-West traffic. The MSN3700-CS2FC combines the Spectrum-2 silicon with an open ecosystem: ONIE boot loader, Cumulus Linux, and standard x86 CPUs allow full automation through DevOps tooling. Back-to-front (P2C) airflow suits hot-aisle exhaust data center layouts, and the standard-depth chassis fits shallow racks common in colocation facilities. Typical applications include cloud-scale leaf/spine fabrics, hyperconverged storage networks, big data and analytics clusters, and high-density 25GbE server access using breakout cables. It is also deployed as a super-spine aggregation switch in web-scale IT. Design consideration: verify airflow direction at ordering time; the -CS2FC (P2C/back-to-front) variant must not be mixed with front-to-back (C2P) units in the same rack without ducting planning. This page synthesizes distributor pricing, drop-in platform alternatives, and practical deployment notes not found in the manufacturer datasheet, with pricing verified as of 2026-10-19.
MSN3700-VS2FC - 32x200GbE Spectrum-2 Switch | NVIDIA
The NVIDIA (Mellanox) MSN3700-VS2FC is a 1U rack-mount Open Ethernet switch built on the Spectrum-2 ASIC, delivering 32 QSFP56 ports at up to 200GbE each (12.8 Tb/s aggregate throughput) with two AC power supplies, standard-depth chassis, x86 management CPU, P2C (port-to-connector) airflow, and Cumulus Linux pre-installed. A data center switch is the top-of-rack or spine-layer device that interconnects servers, storage, and other switches in a leaf/spine fabric. Within the network equipment hierarchy, the MSN3700-VS2FC belongs to the NVIDIA Spectrum SN3000 series of Open Ethernet switch systems, positioned above 100G access platforms and alongside the modular SN3000 chassis products for cloud-scale deployments. Key features include 32x QSFP56 ports supporting 1GbE through 400GbE speeds per the SN3000 series datasheet, full 12.8 Tb/s non-blocking fabric for rack-scale connectivity, redundant hot-swappable AC power supplies, and a Cumulus Linux operating environment enabling automation with standard DevOps tooling. The SN3000 series is purpose-built for leaf, spine, and super-spine data center topologies. The Spectrum-2 ASIC provides flexible port speeds spanning 1GbE to 400GbE, allowing a single platform to serve mixed-speed fabrics. The x86 management CPU runs Cumulus Linux natively, supporting REST APIs, Ansible, and telemetry for cloud-style operations. P2C airflow matches typical forward-flow rack cooling, and the standard-depth chassis fits common 1U racks with the included rail kit. Typical applications include 200G spine switches in hyperscale and enterprise data centers, VAST Data and high-performance NVMe storage fabric interconnects (the MSN3700-VS2FC is a listed VAST Data OPN), and AI/ML cluster leaf fabrics where 100G/200G server connectivity is required. Design consideration: exact power consumption figures are not published in the available evidence; confirm AC power budget and PSU redundancy requirements with the manufacturer datasheet before finalizing rack power planning. This page synthesizes distributor pricing, family cross-references, and practical deployment notes not consolidated in the manufacturer datasheet.
MT7981B Wi-Fi 6 Router SoC | MediaTek
The MediaTek MT7981B is a highly integrated Wi-Fi 6 generation wireless network router system-on-chip (SoC) designed for high-performance home entertainment, home automation, and router platforms. The supplied data identifies it as a MediaTek wireless network router SoC, but does not provide verified CPU frequency, memory interface, Ethernet speed, radio configuration, package dimensions, pin count, or operating-temperature values. Its platform role is therefore best understood from the manufacturer-linked MT7981 Wi-Fi 6 platform datasheet and the provided product descriptions rather than from guessed numerical specifications. A wireless network router SoC is an integrated semiconductor platform that combines processing, networking, and wireless-control functions into one device. In the product hierarchy, an SoC is a semiconductor, while a router SoC belongs to the broader networking and communications IC category. The MT7981B is intended to support Wi-Fi 6 router designs, where it can serve as the central platform for packet processing, wireless configuration, and connected-home functions. The provided results describe it as suitable for high wireless performance, home entertainment, and home automation. The strongest verified feature statement is Wi-Fi 6 generation support. Other verified search context associates MT7981B with high-performance, developer-friendly router platforms and identifies MT7981B-based systems as suitable for AX3000-class Wi-Fi 6 hardware. However, the supplied data does not establish that MT7981B itself contains every radio used in an AX3000 router; external MediaTek wireless components may be used in a complete platform. Separate quantities such as CPU cores, clock rate, RAM, flash, Ethernet ports, 2.5G interfaces, package, and thermal limits require confirmation from the manufacturer datasheet. Typical MT7981B applications include Wi-Fi 6 home routers, connected-home gateways, home entertainment networking, and automation controllers. In a router design, the device would be placed at the center of the network architecture and would require board-level support for memory, Ethernet interfaces, radio companions, power delivery, clocking, boot storage, and firmware. The provided data does not include a reference schematic, recommended companion-chip list, or electrical limits, so those implementation details should not be inferred. Design planning should begin with the exact package and pin assignment in the applicable MediaTek MT7981 datasheet, followed by thermal, electromagnetic, power-integrity, and signal-integrity reviews. Because this is a digital communications SoC, SOA is not applicable. The available public results should be treated as discovery references rather than a substitute for the manufacturer’s complete engineering datasheet and programming documentation. This product page summarizes the verified MT7981B identity, Wi-Fi 6 router positioning, available public datasheet references, and sourcing context while explicitly preserving missing electrical and package data. It is intended to help engineers identify the correct platform and locate the authoritative documents without fabricating unverified specifications.
NAC1081XTMA1 - NFC Actuation Controller 13.56MHz VFQFN-32 | Infineon
The Infineon NAC1081XTMA1 is a fully integrated NFC actuation controller that combines an ISO 14443 / NFC Forum compliant contactless transceiver, a microcontroller, and an actuation / sensor interface in a single 32-pin VFQFN exposed-pad package. It operates over a 2.8V to 3.3V supply and communicates with external hosts through SPI and UART interfaces. The device is purpose-built for battery-less or energy-harvesting applications where an NFC field powers up the IC and triggers a defined actuation sequence on a load. What is an NFC actuation controller? It is a category of mixed-signal ICs that sits at the intersection of contactless front-ends and embedded MCUs. The hierarchy is: NFC actuation controller -> NFC/RFID front-end IC -> wireless power & sensor interface -> power management & mixed-signal IC. Unlike a passive RFID tag, an NFC actuation controller can actively drive outputs (relays, MOSFETs, LEDs, sensors) after harvesting energy from the RF field, eliminating the need for a battery in many IoT nodes. Key features include ISO 14443-A/B compliance, NFC Forum Type 2/4 tag emulation support, an integrated 13.56 MHz RF front-end with no external matching components required, an on-chip ARM Cortex-M0 microcontroller core, and a configurable actuation / GPIO bridge. The integrated regulator derives system power directly from the harvested RF energy, supporting fully passive operation up to a few milliwatts of load drive. The architecture combines a hardwired analog front-end with a programmable MCU core. The analog block performs RF rectification, demodulation, load modulation, and field detection; the MCU executes customer firmware from embedded NVM. This partitioning allows deterministic RF behaviour while preserving firmware flexibility for actuation profiles, security keys, and host protocols. Typical applications include NFC-configured IoT commissioning, battery-free wireless sensor nodes, NFC-triggered smart locks and door access, industrial parameterization tools, and consumer electronics pairing. The wide 2.8-3.3V range and exposed-pad package support compact PCB layouts suitable for tags, inlays, and small form-factor modules. A critical design consideration is antenna matching: the NAC1081 expects a 50-ohm RF interface and a tuned loop antenna. Mismatched impedance will reduce the read range and may prevent energy harvesting at the target distance. Designers should follow the reference antenna layout in the Infineon datasheet. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond what is in the manufacturer datasheet, helping engineers shorten the sourcing and integration cycle.
NRC7292 - IEEE 802.11ah Wi-Fi HaLow Sub-1GHz SoC | Newracom
The Newracom NRC7292 is the industry's first system-on-chip (SoC) compliant with the IEEE 802.11ah Wi-Fi HaLow standard, an Arm Cortex-M3/M0-based wireless SoC operating in the Sub-1GHz license-exempt band with configurable 1/2/4 MHz channel widths delivering 150 Kbps to 15 Mbps PHY data rates in an integrated SoC package. Wi-Fi HaLow, defined by IEEE 802.11ah, is a low-power, long-range variant of the Wi-Fi family. While conventional Wi-Fi standards such as 802.11n/ac/ax operate at 2.4 GHz and 5 GHz and trade range for throughput, 802.11ah moves the radio into Sub-1GHz spectrum, where lower path loss and better material penetration yield connectivity over significantly greater distances. Within the wireless hierarchy, the NRC7292 sits at the SoC level, integrating an RF transceiver, baseband MAC/PHY, and host MCU, eliminating the need for a separate microcontroller in many designs. Key features include compliance with IEEE 802.11ah draft 8.0, configurable channel bandwidths of 1, 2, and 4 MHz with optional short guard interval (SGI), PHY rates from 150 Kbps up to 15 Mbps, and both standalone and host-based operating modes. Paired with an external RF front-end module such as the Qorvo RFFM6901, transmit power can reach up to 23 dBm, extending link budget for outdoor and wall-penetrating links. Architecturally, the NRC7292 combines an Arm Cortex-M3/M0 subsystem with the HaLow radio, and Newracom provides a complete SDK, including a publicly available standalone SDK package on GitHub, so developers can build either fully standalone IoT nodes or host-attached modules over UART/SDIO interfaces. Support for the 802.11ah security framework enables WPA-style protected connections with HaLow access points and routers. Typical applications include smart-home and smart-building sensor networks, utility and smart-metering infrastructure, agricultural and industrial telemetry, security cameras, and long-range backhaul for IoT gateways where Sub-1GHz penetration outperforms 2.4 GHz meshes. Design consideration: because the NRC7292 is an SoC rather than a certified module, RF front-end design (typically the Qorvo RFFM6901 FEM), antenna matching, and regulatory certification of the final Sub-1GHz product are the integrator's responsibility; evaluation via the NRC7292 EVK or ALFA Network AHPI7292S/AHMB7292S modules is strongly recommended first. This page synthesizes verified distributor and manufacturer data, evaluation-board options, and drop-in alternative analysis not found in the manufacturer brochure.
NRC7394 - Wi-Fi HaLow 802.11ah SoC | Newracom | IoT Connectivity
The Newracom NRC7394 is a next-generation Wi-Fi HaLow (IEEE 802.11ah) wireless System-on-Chip operating in the 750 MHz to 950 MHz sub-1 GHz spectrum, housed in a 48-pin QFN 6x6 mm package with exposed pad. Designed specifically for the connectivity needs of the IoT era, it delivers exceptional long-range penetration, low power consumption, and the capability to connect up to 8,000 devices within a single network. A Wi-Fi HaLow SoC is a highly integrated wireless semiconductor that combines an IEEE 802.11ah MAC/baseband with an RF transceiver and host processing functions. IEEE 802.11ah, marketed as Wi-Fi HaLow, extends the familiar Wi-Fi protocol stack down into sub-1 GHz license-exempt bands, trading raw throughput for roughly ten times the range of conventional 2.4 GHz Wi-Fi and dramatically lower power draw. In the wireless connectivity hierarchy, it sits between short-range Wi-Fi/Bluetooth and LPWAN technologies such as LoRa, offering IP-native networking with mesh and star topologies. Key features of the NRC7394 include support for 802.11ah SISO operation with channel bandwidths suitable for low-data-rate, long-range links; operation across the 750-950 MHz regional sub-GHz bands; and low power consumption suited to battery-operated sensors. Its ability to address thousands of concurrent devices per access point makes it well matched to dense sensor deployments where conventional Wi-Fi infrastructure cannot scale. The SoC architecture integrates the RF transceiver, modem, MAC, and processor subsystem in a single die, reducing bill-of-materials count and board area relative to discrete radio-plus-MCU designs. Newracom supplies host-mode software packages for Linux through its public software repository, enabling integration with gateway and access-point platforms. The device is also the basis of certified modules such as the Murata Type 2HK (LBWA0ZZ2HK), which packages the chipset with matching network and antenna interface for rapid deployment. Typical applications include smart building sensor networks, smart-city infrastructure, industrial monitoring, agricultural telemetry, and campus-wide access control, where long range, wall penetration, and massive device counts are the deciding criteria. The sub-GHz band provides superior propagation through walls and foliage compared with 2.4 GHz solutions. When designing with the NRC7394, verify the regulatory channel plan for your target region within the 750-950 MHz range, and follow the manufacturer reference design for RF matching and crystal layout to pass regulatory certification on the first attempt. This page synthesizes verified distributor data, product-brief specifications, pricing tiers, design notes, and application guidance not found together on the manufacturer datasheet.
NRF51822-QFAC - BLE/ANT SoC 256kB Flash 48-QFN | Nordic
The Nordic Semiconductor NRF51822-QFAC is a multiprotocol 2.4 GHz ultra-low-power System-on-Chip integrating an ARM Cortex-M0 CPU, a 2.4 GHz radio transceiver supporting Bluetooth Low Energy (BLE) and ANT/ANT+ protocols, 256 kB flash and 32 kB RAM, in a 48-pin 6x6 mm QFN package. Headline parameters: 256 kB flash, 32 kB RAM, ARM Cortex-M0 core, and Bluetooth 4.0 (BLE) radio. It is built on a 0.18 um CMOS process and provides GPIO, ADC, PWM, I2C, SPI, UART peripherals. A Bluetooth Low Energy SoC is an integrated circuit that combines a microcontroller, memory, peripherals, and a 2.4 GHz radio in a single die. Within the taxonomy: BLE SoC -> wireless SoC -> microcontroller + transceiver -> semiconductor. BLE SoCs target ultra-low-power connected applications (wearables, beacons, sensors) where discrete MCU + external radio solutions would consume too much board area and power. The NRF51822 family was Nordic's first-generation nRF51 series BLE platform, widely adopted in 2014-2019 designs. Key features: ARM Cortex-M0 core up to 16 MHz, 256 kB flash for application code, 32 kB RAM, integrated 2.4 GHz radio with -93 dBm RX sensitivity in BLE mode and +4 dBm TX output power, 12-bit/10-bit ADC, 31 GPIO, hardware crypto accelerator (AES), and a flexible PPI (Programmable Peripheral Interconnect) block. The integrated DC-DC converter inductor allows the chip to operate from 1.8 V to 3.6 V supply with peak RX/TX currents around 5-10 mA and sub-uA sleep currents. Architecturally, the NRF51822 pairs a Cortex-M0 core with a separate 2.4 GHz radio front-end; the radio is driven by Nordic's SoftDevice stack (S110/S120/S130) flashed on top of user application code. This separation isolates protocol updates from application firmware and has driven broad ecosystem support (nRF5 SDK, nRF Connect SDK legacy compatibility, third-party Zephyr and Mynewt ports). Typical applications include BLE-enabled wearables, fitness/heart-rate sensors, smart-home beacons and sensors, ANT+ sports/fitness devices, industrial wireless sensor nodes, and Apple iBeacon/Eddystone proximity tags. The QFAC variant (256 kB flash / 32 kB RAM) is the highest-memory SKU in the nRF51 family, suitable for applications requiring Over-The-Air (OTA) DFU bootloaders plus application code. When designing with NRF51822-QFAC, ensure proper RF layout (controlled-impedance antenna trace, pi-matching network, ground plane), supply decoupling (1 uF + 100 nF + 10 nF) and provision a 32.768 kHz crystal if low-power sleep timing is required. For new designs, evaluate the nRF52832 or nRF52840 which add Bluetooth 5, Cortex-M4F, and improved radio sensitivity; the QFAC is recommended only for legacy maintenance or cost-sensitive carry-over designs.
NRF51822-QFAC-R7 - Bluetooth LE/ANT SoC, 256KB Flash, QFN-48 | Nordic
The Nordic Semiconductor NRF51822-QFAC-R7 is an ultra-low-power 2.4 GHz multiprotocol RF System-on-Chip (SoC) that integrates an ARM Cortex-M0 CPU with a Bluetooth low energy (BLE) and ANT/2.4 GHz proprietary radio transceiver. Housed in a 48-pin QFN package with an exposed pad (6x6 mm), the -QFAC variant delivers 256 KB of embedded flash and 32 KB of RAM. The device operates from a 1.8V to 3.6V supply and supports output power from -20 dBm to +4 dBm, providing flexible range and battery-life trade-offs for connected devices. A Bluetooth SoC (System-on-Chip) is a single integrated circuit that combines a microcontroller, radio transceiver, memory, and peripherals required to implement a complete wireless connectivity solution. The nRF51822 sits within the broader product taxonomy of wireless MCUs -> 2.4 GHz transceivers -> RF & Wireless ICs. By collapsing the radio and protocol stack into one die, SoCs reduce BOM count, PCB complexity, and total system power compared with discrete MCU-plus-transceiver designs. Key features include a 32-bit ARM Cortex-M0 core running up to 16 MHz, a 2.4 GHz radio with -93 dBm RX sensitivity in BLE mode, integrated 16-channel AES encryption accelerator, 12-bit/200 ksps ADC, and a rich peripheral set (GPIO, SPI, I2C, UART, PWM, RTC). The device supports both Bluetooth low energy (v4.0/v4.2) and the ANT+ protocol, making it a versatile choice for wearables, sports sensors, beacons, and proprietary 2.4 GHz links. Architecturally, the nRF51822 separates the application Cortex-M0 core from the radio front-end through a shared memory architecture. A built-in DC-DC converter improves power efficiency at higher supply voltages, while an LDO mode is available for low-Iq designs. The part also includes a wake-on-radio function for ultra-low standby current. Typical applications include Bluetooth Low Energy beacons, fitness wearables, medical sensors, smart-home nodes, and industrial IoT endpoints. The QFAC variant with 256 KB flash is targeted at applications requiring OTA firmware updates or richer protocol stacks. A critical design consideration is antenna matching: the QFN package's single-ended RFIO pin requires a π-network matching network between the chip and antenna (typically chip or trace antenna) to meet Bluetooth 5.2 sub-1 GHz emissions. Decoupling capacitors must be placed close to the supply pins, and the DC-DC inductor must be shielded. Routing the exposed pad to a flooded ground plane is required for thermal dissipation. This page consolidates distributor pricing, drop-in alternatives, and practical design notes - including same-brand Nordic variants and cross-brand equivalents - offering engineering value not found in the standalone datasheet.
NRF51822QFAC - Bluetooth LE/2.4GHz SoC, 256kB Flash | Nordic
The Nordic Semiconductor NRF51822QFAC is a multiprotocol Bluetooth low energy and 2.4 GHz proprietary RF System-on-Chip integrating an ARM Cortex-M0 CPU, 256 kB flash, 32 kB RAM, and a 2.4 GHz radio transceiver in a 48-pin QFN package (6x6 mm) with exposed pad. The part is specified for the QFACA variant silicon (revision A), supports Bluetooth v4.0, and operates over the full industrial temperature range, making it suitable for ultra-low-power wireless sensor nodes, beacons, and wearables. An RF System-on-Chip (SoC) is a single silicon die that combines a microcontroller core, on-chip program and data memory, analog/RF peripherals, and a radio transceiver. The nRF51822 belongs to the Bluetooth SoC family (Bluetooth low energy SoC -> wireless MCU -> connected microcontroller -> general-purpose MCU), which is itself a branch of the broader category of short-range wireless ICs. By collapsing the MCU and radio into one die, an RF SoC dramatically shrinks PCB area, simplifies BOM, and lowers sleep current compared with two-chip MCU+transceiver designs - enabling coin-cell-powered products that can run for years on a single CR2032. Key features include a Cortex-M0 core running up to 16 MHz (31.25 MHz when using the on-chip HFCL), 256 kB on-chip flash for application + softdevice storage, 32 kB on-chip SRAM, a flexible 2.4 GHz radio supporting Bluetooth low energy (v4.0) and Nordic Gazell proprietary modes, integrated balun, and a rich set of peripherals including 10-bit ADC, RTC, GPIO, I2C, SPI, UART, and PWM. The QFN-48 (6x6 mm) package exposes an EP that must be soldered to the board ground for thermal and RF performance. Typical applications include BLE beacons, fitness bands, smart watches, medical sensor patches, remote controls, smart-home bridges, and industrial telemetry nodes. The combination of sub-uA sleep current and on-chip Cortex-M0 processing makes it well suited to products where battery life is measured in months rather than hours. When laying out a board, observe Nordic's reference layout: route the differential RF port (RFIO P0.18 / RFIO1 P0.21 on QFACA) with controlled 50 ohm impedance, place the chip's exposed pad on a continuous ground pour, and keep decoupling capacitors within 2 mm of the supply pins. The radio's TX output power, RX sensitivity, and blocking performance all depend on this layout. This page synthesizes distributor pricing, drop-in QFN-48 alternatives from the Nordic nRF51/nRF52 family, and PCB-level design notes that are not collected in any single manufacturer document.