RF & Wireless
Subcategories
Products (710+)
RW612 - Wi-Fi 6 + BLE 5.4 + 802.15.4 Tri-Radio MCU | NXP
The NXP RW612 is a highly integrated, low-power tri-radio wireless MCU combining a 260 MHz Arm Cortex-M33 core with TrustZone-M, 1.2 MB of on-chip SRAM, and integrated Wi-Fi 6, Bluetooth Low Energy 5.4, and 802.15.4 radios in a TFBGA package. A wireless MCU (microcontroller unit) integrates a general-purpose processor with one or more radio transceivers on a single die, collapsing the traditional two-chip solution of MCU plus connectivity module into one device. In the system hierarchy, it sits above standalone MCUs and below full application processors, serving the rapidly growing connected-device market where concurrent multiprotocol operation is required. Key features of the RW612 include the tri-radio architecture that enables simultaneous or protocol-switched operation of Wi-Fi 6 (802.11ax), Bluetooth LE 5.4, and 802.15.4 (Thread/Zigbee), plus the 260 MHz Cortex-M33 with Armv8-M TrustZone security. This lets a single chip run a Wi-Fi network stack, a BLE companion application, and a Thread or Zigbee mesh node concurrently, dramatically reducing BOM cost and board area versus multi-chip designs. Technically, the RW612 MCU subsystem includes 1.2 MB of on-chip SRAM and a Quad SPI interface with an on-the-fly decryption engine for securely accessing off-chip XIP (execute-in-place) flash and PSRAM. This hardware cryptography path protects external code and data without CPU overhead, while the high-bandwidth Quad SPI keeps code execution responsive for demanding wireless stack plus application workloads. According to the NXP RW612 datasheet, the part is PSA Certified as part of the RW61x family. Typical applications include connected smart home devices and appliances, enterprise and industrial automation, smart accessories, and smart energy products. The dual-band Wi-Fi 6 support also improves power efficiency and network capacity compared to Wi-Fi 4/5 designs. Design consideration: because the RW612 relies on external XIP flash for code storage, ensure your Quad SPI flash meets the timing and security requirements of the on-the-fly decryption engine, and plan RF layout carefully to support 2.4 GHz and 5 GHz antenna paths. This page synthesizes verified datasheet parameters, drop-in family alternatives, application guidance, and design notes not consolidated in the manufacturer datasheet.
RW612HN - Wi-Fi 6 + BLE 5.4 Tri-Radio Wireless MCU | NXP
The NXP Semiconductors RW612HN is a highly integrated, low-power tri-radio wireless MCU combining a 260 MHz Arm Cortex-M33 core with Wi-Fi 6 (802.11ax), Bluetooth Low Energy 5.4, and 802.15.4 radios, housed in a 116-pin VFQFN dual-row exposed-pad package supporting 2.4 GHz and 5 GHz operation. A wireless MCU (microcontroller unit) integrates both a radio transceiver and a processing core on a single die, collapsing what would traditionally require a separate MCU and RF module into one component. Within the power-management and connectivity hierarchy, the RW612 sits above simple BLE-only SoCs and below full application processors, occupying the wireless-system-on-chip (SoC) tier used for connected devices. Key features include tri-radio concurrency (Wi-Fi 6 plus BLE 5.4 plus 802.15.4 for Thread/Zigbee), TrustZone-M hardware security isolation, and 1.2 MB of on-chip SRAM. A Quad SPI interface with high bandwidth and an on-the-fly decryption engine enables secure execute-in-place (XIP) access to off-chip flash and PSRAM, letting designers extend code and data memory cost-effectively. Architecturally, the 260 MHz Cortex-M33 with Armv8-M TrustZone-M provides a root-of-trust foundation, while the integrated Wi-Fi 6 radio delivers 802.11ax efficiency features such as OFDMA and target wake time for lower power and higher network capacity. The RF front end covers 2400 MHz to 2483.5 MHz and 5170 MHz to 5895 MHz per Arrow listings. Typical applications include connected smart home devices, enterprise and industrial automation, smart accessories, and smart energy products where Wi-Fi, Thread/Matter, and BLE coexistence on one chip reduces BOM cost and board area. A key design consideration is RF layout: the dual-row VFQFN exposed pad requires a solid ground pour and via stitching directly beneath the part to ensure RF performance and thermal dissipation. This page synthesizes distributor listings, datasheet links, drop-in alternative analysis, and practical design notes not found in the NXP datasheet alone.
RW612HN-A2IMP - Wi-Fi 6 + BLE 5.4 Tri-Radio MCU | NXP
The NXP RW612HN/A2IMP is a highly integrated, low-power tri-radio wireless MCU combining Wi-Fi 6 (802.11ax), Bluetooth Low Energy 5.4, and 802.15.4 (Thread/Zigbee) radios with a 260 MHz Arm Cortex-M33 core and 1.2 MB on-chip SRAM, housed in a 116-pin VFQFN dual-row exposed-pad package. A wireless MCU (microcontroller unit) is a single-chip device that merges a processor core, memory, peripherals, and one or more radio transceivers, eliminating the need for a separate host processor and radio module. Within the system hierarchy, the RW612 sits at the top of the wireless-SoC category: wireless SoC -> wireless MCU -> microcontroller -> semiconductor, targeting connected-device designs that previously required multi-chip solutions. Key features include the tri-radio concurrent operation (Wi-Fi 6 + BLE 5.4 + 802.15.4), TrustZone-M security isolation, a Quad SPI interface with an on-the-fly decryption engine for secure execute-in-place (XIP) access to off-chip flash and PSRAM, and an operating frequency range of 2.4 GHz to 5 GHz (2400 MHz to 2483.5 MHz and 5170 MHz to 5895 MHz per the Arrow listing). The 260 MHz Cortex-M33 delivers the compute headroom needed for TLS stacks and application logic simultaneously. Technically, the RW61x platform integrates the RF front end, baseband, MAC, and MCU subsystem on one die, reducing BOM count and board area versus discrete radio-plus-host architectures. TrustZone-M partitions secure and non-secure firmware, supporting secure boot and credential storage for Matter and other IoT security frameworks. Typical applications include connected smart home devices, enterprise and industrial automation nodes, smart accessories, gaming controllers, and smart energy endpoints where multi-protocol connectivity is required. Design consideration: the VFQFN dual-row exposed-pad package requires a solid ground pour and thermal via array under the exposed pad for RF and thermal performance; consult the NXP hardware design guide for matching network placement. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
RYLR896 - LoRa 868/915MHz UART Transceiver Module | REYAX
The REYAX RYLR896 is a LoRa long-range transceiver module operating in the 868/915 MHz ISM bands (frequency coverage 820 MHz to 960 MHz per DigiKey), built around the Semtech SX1276 LoRa engine and controlled entirely through a simple UART interface with AT commands. The module ships with an antenna included and is supplied in a castellated/chassis-mount package suitable for reflow or hand soldering onto a carrier PCB. A LoRa transceiver module is a radio subsystem that implements the LoRa PHY (physical layer) developed by Semtech. LoRa uses chirp spread spectrum (CSS) modulation to achieve link budgets far beyond conventional FSK radios, trading data rate for range and interference immunity. Within a wireless system hierarchy, the module sits between the host MCU and the antenna, providing the complete RF front end, modem, and protocol command layer. Key features include long-range low-power LoRa communication with high interference immunity, a plain AT-command UART interface that removes the need to write SPI register-level drivers for the SX1276, ultra-low current consumption for battery operation, and regulatory certifications including FCC Part 15 Class B compliance documented in the manufacturer datasheet. Technically, the RYLR896 wraps the Semtech SX1276 so that all modem configuration - frequency, spreading factor, bandwidth, coding rate, and power - is set through text commands rather than register writes. The module exposes a minimal pin set: VDD power supply, NRST (active-low reset), RXD, TXD, and GND, as documented in the Zephyr RTOS shield definition for RYLR896/RYLR915. Typical applications include smart agriculture sensor nodes, IoT telemetry and metering, home automation and appliance control over kilometers without internet infrastructure, and industrial monitoring links. Design-wise, keep UART baud rate and supply decoupling per the datasheet, and verify your regional band plan (868 MHz EU vs 915 MHz US) since this module targets the 868/915 MHz variants. This page synthesizes distributor availability, drop-in same-family alternatives, and practical design notes not found in the REYAX datasheet alone.
Ra-01H - LoRa 803-930MHz SX1276 SPI Module | Ai-Thinker
The Ai-Thinker Ra-01H is a surface-mount LoRa transceiver module based on the Semtech SX1276 RF chip, operating across the 803 MHz to 930 MHz ISM band with up to 20 dBm (100 mW) transmit output power in a 16-pin SMD-16P package. The module integrates a complete radio modem supporting LoRa, FSK, GFSK, MSK, GMSK, and OOK modulation schemes via an SPI host interface, with a typical receive sensitivity of -140 dBm and a maximum receive current of 105 mA. It operates from a single 3.3 V supply rail and draws approximately 12.15 mA average current during active transmission cycles. A LoRa (Long Range) module is a wireless transceiver IC that uses Chirp Spread Spectrum (CSS) modulation to achieve long-range, low-power communication in sub-gigahertz license-free ISM bands. LoRa belongs to the wider family of low-power wide-area network (LPWAN) technologies, sitting alongside NB-IoT and Sigfox as a complementary physical-layer solution for battery-powered IoT endpoints. The Ai-Thinker Ra-01H is a complete pre-certified RF module that integrates the SX1276 die with impedance-matching network and shielding, eliminating the need for RF layout expertise during prototyping. Key features include LoRa frequency hopping spread spectrum support, Channel Activity Detection (CAD) for Listen-Before-Talk (LBT) operation, and ultra-low receive current for battery-powered sensor nodes. The receiver sensitivity of -140 dBm combined with the +20 dBm transmit power provides a link budget of 160 dB, sufficient for line-of-sight ranges of several kilometers. The SX1276 also embeds an FSK/OOK transceiver mode for compatibility with legacy sub-GHz protocols. The Ra-01H typically runs as the wireless physical layer in star or point-to-point LoRa networks, paired with a microcontroller host over SPI. The SX1276 architecture provides up to +20 dBm on the 868/915 MHz bands with efficient PA ramp control, plus leading-edge features like 256-byte FIFO and packet engine that offload timing-critical tasks from the host MCU. The wide 803-930 MHz coverage allows deployment across both the European 868 MHz and North American 915 MHz ISM allocations without hardware changes. Typical applications include long-range IoT sensor telemetry (smart metering, agriculture, environmental monitoring), industrial remote control, asset tracking, smart home wireless bridges, and LPWAN prototyping with LoRaWAN gateways. The compact SMD-16P form factor drops directly onto host PCBs, while the through-hole variant Ra-01H-IPEX requires manual antenna integration for development boards. When designing with this module, ensure the host PCB provides a solid ground plane beneath the module's exposed paddle and that the antenna trace is 50 ohm controlled-impedance. Place supply decoupling (10 uF + 100 nF) within 5 mm of the VDD pin to suppress load-dump transients during PA ramp-up.
Ra-01SC - LLCC68 LoRa Module, 22dBm, 410-525MHz | Ai-Thinker
The Ai-Thinker Ra-01SC is an SMD-16 LoRa transceiver module built around the Semtech LLCC68 RF chip, delivering up to 22 dBm (160 mW) transmit power and -129 dBm receive sensitivity across the 410 MHz to 525 MHz sub-GHz ISM band, housed in a compact 17 x 16 x 3.2 mm surface-mount package with an IPEX antenna connector. A LoRa module is a wireless transceiver module that uses Chirp Spread Spectrum (CSS) modulation from Semtech's LoRa remote modem family. LoRa belongs to the spread-spectrum modulation family within the broader category of low-power wide-area network (LPWAN) technologies. LoRa modules sit in the physical layer stack of IoT connectivity, between a microcontroller's SPI bus and the over-the-air RF channel, enabling kilometer-range communication at very low current draw. Key features include support for LoRa, FSK, GFSK, MSK, GMSK and OOK modulation, an SPI host interface for configuration and data transfer, 4.2 mA typical receive current, up to 140 mA peak transmit current at +22 dBm, and an operating temperature range of -40 °C to +85 °C. The module integrates the LLCC68 transceiver, RF front-end matching network, TCXO reference and IPEX antenna footprint, removing the need for external RF tuning. The LLCC68 inside the Ra-01SC uses Semtech's second-generation LoRa modem IP with bandwidth options of 125 kHz, 250 kHz and 500 kHz and spreading factors from SF5 to SF11. Compared with the older SX1276 family (Ra-01, Ra-01S), the LLCC68 brings lower receive current, faster SPI access and an improved CAD (Channel Activity Detection) engine for Listen-Before-Talk implementations under ETSI EN 300 220 duty-cycle rules. Typical applications include battery-powered IoT sensors, smart agriculture soil and irrigation nodes, asset tracking, building automation, wireless meter reading and any long-range, low-throughput star or mesh network where a sub-GHz ISM link is required. Pair the Ra-01SC with an ESP32, STM32 or Arduino host via the 16-pin SMD pads and use the siliconshelf Arduino-LoRa-Ra01Sx library for quick prototyping. When laying out the host PCB, keep the IPEX antenna area clear of copper pours and route the SPI bus with short, matched traces to avoid timing violations on the LLCC68's busy indicator. For best range, use a properly tuned 50 ohm antenna matched to the 410-525 MHz band of your region. This page consolidates distributor pricing from LCSC and JLCPCB, drop-in same-family Ai-Thinker variants, host MCU recommendations and design guidance that is not collected in any single vendor document.
Ra-01SH - 803-930MHz LoRa SX1262 Transceiver Module | Ai-Thinker
The Ai-Thinker Ra-01SH is a surface-mount LoRa transceiver module built around the Semtech SX1262 radio chip, operating in the 803 MHz to 930 MHz sub-1 GHz ISM band, packaged in a 16-pin SMD form factor with an integrated I-PEX antenna connector. It delivers up to +22 dBm (160 mW) of transmit power, achieves receive sensitivity down to -148 dBm, and draws 4.2 mA in receive mode and approximately 140 mA at full transmit power. The module supports LoRa, FSK, GFSK, MSK, GMSK and OOK modulation, uses an SPI bus for host communication, and operates from a 2.7 V to 3.6 V supply with a peak current rating up to 250 mA. What is a LoRa transceiver module? A LoRa (Long Range) transceiver is a sub-1 GHz radio modem that uses spread-spectrum chirp modulation to deliver kilometer-scale wireless links at very low data rates. It belongs to the broader family of ISM-band wireless transceivers (which also includes sub-GHz FSK radios, Sigfox, and proprietary OOK links), all of which trade data throughput for link budget and battery life. A LoRa module integrates the SX126x-class radio IC, a TCXO or crystal reference, an RF matching network, and an antenna interface into a single reflow-solderable unit, exposing a digital SPI control port to the host MCU and removing the need for RF expertise during board bring-up. The Ra-01SH is engineered for ultra-long-range, low-data-rate applications where link margin and interference immunity dominate the design. Its Semtech SX1262 radio delivers up to +22 dBm Tx power while the receiver's -148 dBm sensitivity (at the lowest spreading factor and maximum bandwidth) yields link budgets suitable for multi-kilometer line-of-sight links. FSK, GFSK, MSK, GMSK and OOK compatibility add flexibility for legacy or proprietary narrow-band protocols. Typical applications include LoRaWAN end-node sensors, Meshtastic mesh nodes, remote metering, agricultural and environmental telemetry, low-power wide-area network (LPWAN) prototyping, and industrial remote control. The module's 4.2 mA receive current and deep-sleep support make it ideal for battery-powered devices that spend most of their life in standby. When designing with the Ra-01SH, treat the antenna section as a critical RF sub-circuit: keep the I-PEX antenna far from ground pours and metal shields, and respect ESD precautions per Ai-Thinker's specification document. Use a 3.3 V regulated rail capable of delivering the ~140 mA transmit peak, and a 10 uF + 100 nF decoupling network at the module's VDD pins to suppress load-step transients.
S4048T-ON - 48x10GBASE-T + 6x40GbE ToR Switch | Dell EMC
The Dell EMC PowerSwitch S4048T-ON is a high-density 1RU top-of-rack (ToR) data center switch with 48x 10GBASE-T RJ45 ports and 6x 40GbE QSFP+ uplinks, delivering up to 1.44 Tbps of non-blocking switching capacity. A top-of-rack switch is a network switch mounted in the top of a server rack that aggregates traffic from all servers in that rack and uplinks it to aggregation or core layers of the data center fabric. ToR switches form the access tier of the data center network hierarchy (switch -> ToR access switch -> aggregation/core switch -> data center fabric) and are critical to East-West traffic performance in virtualized and hyper-converged environments. Key features include 48 energy-efficient 100M/1G/10G BASE-T copper ports, 6 QSFP+ 40GbE ports, line-rate Layer 2 and Layer 3 forwarding within a conservative power budget, and dual redundant power supplies. The S4048T-ON supports Dell Networking OS9 and, through ONIE (Open Network Install Environment), alternate network operating systems for open networking deployments. The platform leverages a non-blocking switching architecture purpose-built for high-performance data center and computing environments. Reverse airflow (front-to-back) cooling options support hot/cold aisle containment designs, and Embedded Open Automation capabilities extend automation and telemetry functions. Typical applications include 10 Gbps server access in enterprise and cloud data centers, 40 Gbps optical uplinks to core switching fabrics, campus aggregation and core switching, and Open Networking (ONIE-based) SDN deployments. When deploying, plan airflow direction to match your containment strategy and reserve the QSFP+ ports for uplinks, as the copper ports are the server-facing access layer. This page synthesizes distributor availability, same-family alternatives, and practical deployment notes not found in the manufacturer spec sheet.
SAF8444 - 77GHz FMCW Automotive Radar SoC | NXP Semiconductors
The NXP Semiconductors SAF8444 is a 77 GHz automotive FMCW radar system-on-chip (SoC) operating across the 76-81 GHz band, built on 28nm RFCMOS process technology in a compact package for mainstream front and corner radar sensors. An automotive radar SoC is a highly integrated device that combines the RF transceiver front end, radar signal processing, and a microcontroller subsystem on a single die. Within the vehicle sensor hierarchy, it sits at the core of the radar sensor module, upstream of functions such as blind spot detection, automated emergency braking, and L2/L2+ ADAS features, replacing multi-chip discrete radar chains with a single-chip solution. Key features include wideband 76-81 GHz FMCW operation supporting short-, medium-, and long-range sensing, an innovative RF architecture optimized for power efficiency, and advanced interference suppression that improves robustness in dense traffic environments where multiple radar-equipped vehicles operate simultaneously. Technical depth: the SAF8444 is derived from the proven SAF85xx radar platform and fabricated in 28nm RFCMOS. The CMOS-based RF integration simplifies thermal management and reduces system cost compared with SiGe-based radar front ends, and the single-chip integration enables on-sensor L2/L2+ ADAS processing at entry-level vehicle price points. Typical applications include blind spot detection (BSD) corner radar sensors, automated emergency braking (AEB) front radar, and cost-optimized long-range front radar for mainstream and economy EVs, where the power-efficient RFCMOS design reduces cooling requirements in sealed sensor housings. Design consideration: as an automotive-qualified radar SoC, the SAF8444 requires careful antenna-in-package or antenna-on-PCB design and appropriate power sequencing with external flash memory, which is often programmed in-system (as evidenced by dedicated in-system programmers from SMH Technologies). This page synthesizes manufacturer product data, drop-in alternative analysis, and design guidance not found in the manufacturer fact sheet, with pricing references as of 2026-09-14.
SARA-R500E-01B - LTE-M Cat M1 Module with eSIM | u-blox
The u-blox SARA-R500E-01B is a LTE-M (Cat M1) cellular transceiver module that integrates an onboard eSIM and bundled connectivity for the continental United States, Hawaii, and Puerto Rico. Built on the u-blox UBX-R5 cellular chipset, the module operates across 3GPP Release 14 LTE-M and NB-IoT bands from 600 MHz through 2.1 GHz and supports GNSS positioning across BeiDou, Galileo, GLONASS, and GPS constellations. What is an LTE-M cellular module? An LTE-M (Long-Term Evolution for Machines) module is a low-power wide-area (LPWA) cellular transceiver designed for IoT applications that require modest data rates (up to ~300 kbps downlink), deep indoor coverage, and multi-year battery operation. LTE-M modules belong to the cellular IoT module hierarchy: cellular module -> LPWA module -> IoT transceiver -> RF/Wireless semiconductor. The SARA-R500E series targets mass-market IoT deployments where SIM logistics and recurring service fees are major friction. Key features include a built-in eSIM with bundled AT&T connectivity, a UART/USB data interface, integrated GNSS for asset tracking, and a compact 16 x 26 mm LGA surface-mount package rated for industrial temperature operation. The module supports power-saving mode (PSM) and extended discontinuous reception (eDRX) for ultra-low average current draw, enabling coin-cell or single-cell Li-ion battery designs that last 10+ years. Technically, the UBX-R5 chipset implements a 3GPP Release 14 LTE-M/NB-IoT protocol stack with integrated baseband, RF transceiver, and application processor. The integrated GNSS receiver shares the LNA and antenna chain for hybrid cellular-plus-positioning designs. Security features include secure boot, hardware-accelerated TLS/DTLS, and a hardware root-of-trust tied to the eSIM identity. Typical applications include asset tracking, fleet management, smart meters, connected health wearables, vending/POS terminals, and industrial sensor telemetry. The eSIM-plus-bundled-connectivity model reduces BOM cost and time-to-market for North American IoT products. When designing with this module, verify antenna matching for the LTE bands used in your region and reserve adequate PCB clearance under the LGA pads. Note: this variant is North America-only - design with the SARA-R500S for global or European deployments. This page synthesizes distributor pricing, the EOL status announced October 2024, and pin-compatible alternatives for engineers managing late-life redesigns not found in the manufacturer datasheet.
SC13213A - 2.4 GHz Zigbee Transceiver + MCU SoC | NXP/Freescale
The NXP (formerly Freescale Semiconductor) SC13213A is a system-on-chip (SoC) platform that integrates a 2.4 GHz low-power RF transceiver compliant with the IEEE 802.15.4 standard together with an embedded microcontroller core. The combination targets Zigbee-compliant wireless nodes where a single silicon die hosts both the radio and the application processor, eliminating the need for a separate host MCU plus transceiver pair. The device is qualified for low-power operation, which is critical for battery-powered sensor and home-automation nodes that must run for years on a primary cell. A Zigbee-compliant platform is a wireless networking solution built around the IEEE 802.15.4 physical and MAC layers and the Zigbee mesh networking stack on top. The SC13213A's integrated radio + MCU architecture places it in the product hierarchy: SoC -> wireless microcontroller -> 802.15.4 transceiver -> RF & wireless module. This integration reduces BOM count, shrinks PCB area, and simplifies firmware development by keeping the radio and application code on the same die. Key features of the SC13213A include a 2.4 GHz ISM-band transceiver operating in the worldwide unlicensed spectrum, IEEE 802.15.4 PHY/MAC compliance for Zigbee and Zigbee PRO stacks, integrated MCU core with on-chip flash/RAM (consult the manufacturer datasheet for exact memory sizes), low receive and transmit current consumption for battery operation, and GPIO-rich package suitable for sensor interfacing. The part is typically supplied in a small surface-mount QFN/LGA-style package aimed at compact wireless modules. Technically, the SC13213A uses a low-IF receiver architecture and direct-conversion transmitter typical of 2.4 GHz IEEE 802.15.4 silicon, with internal PA, LNA, baseband, and modem. The integrated MCU runs the Zigbee network layer, application profiles, and customer code, while hardware accelerators (where present) handle AES-128 encryption for Zigbee security. The integrated approach yields shorter bill-of-materials and lower total quiescent current than a two-chip solution. Typical applications include Zigbee wireless sensor nodes, smart-home lighting and thermostat controls, home security and safety sensors, Zigbee coordinators/routers in mesh networks, and industrial 802.15.4 monitoring endpoints. The SoC architecture is also well-suited to point-to-point or star-topology 802.15.4 links used in proprietary low-power wireless sensor networks. When designing with the SC13213A, pay close attention to RF PCB layout: a 50 ohm controlled-impedance feed to the antenna pin, a pi-network for harmonic compliance, and a solid ground plane under the radio are mandatory. Decouple VDD pins with bulk + ceramic capacitors placed as close to the device as possible, and follow the reference design antenna pattern if available in the manufacturer datasheet. This page synthesizes distributor stock and pricing for the SC13213A, substitutes and cross-references for legacy NXP/Freescale part numbers, and practical design notes not found in the manufacturer datasheet alone.
SFM10R2 - SIGFOX RCZ2 SMD Module 13x20mm | Wisol
The Wisol SFM10R2 is a SIGFOX-only radio module in a surface-mount (SMD) PCBA measuring 13.0 x 20.0 x 2.21 mm, certified for Sigfox Radio Zone 2 (North America, 902-928 MHz). The module integrates an ON Semiconductor AX-SFUS-1-01 Sigfox chipset, which combines a dedicated transceiver with an embedded MCU, exposing a UART interface for external host communication. Sigfox is a low-power wide-area network (LPWAN) protocol optimized for small, infrequent uplink packets from battery-operated endpoints. What is a SIGFOX module? A SIGFOX module is a pre-certified radio transceiver subsystem that implements the physical and link layers of the Sigfox LPWAN protocol. These modules combine an RF front-end, baseband processor, and (often) an integrated MCU, and are pre-certified under FCC/IC for end-device deployment, so the integrator does not need to design a radio from scratch. SIGFOX modules are widely used for low-throughput IoT applications such as utility metering, asset tracking, agriculture sensors, and alarm panels where multi-year battery life and low module cost dominate over data rate. Key features of the SFM10R2 include its compact SMD footprint enabling integration onto small sensor PCBs, an FCC ID of 2AS8LSFM10R2 and IC certification number 25119-SFM10R2 that lets the OEM inherit radio compliance, and ultra-low-power operation suitable for coin-cell or primary-battery powered endpoints. The module exposes a UART for AT-command style configuration and offers a temperature sensor for environmental reporting. Technically, the SFM10R2 is built around the ON Semi AX-SFUS-1-01 SoC, which integrates the Sigfox modem firmware and ARM-class processing core. This eliminates the need for an external host MCU to manage the radio, although a companion MCU is still useful for application logic and sensor I/O. UART lines serve as the host interface. Typical applications include Sigfox asset tracking sensors, utility meter concentrators, smart agriculture probes, industrial tank-level monitors, and wireless alarm panels. The integrated temperature sensor and Sigfox uplink make the SFM10R2 a near drop-in solution for cold-chain and remote telemetry. When designing with the SFM10R2, ensure the host PCB respects the antenna keep-out region and that the UART logic levels match the host MCU. The module is a sub-GHz radio, so a tuned trace or chip antenna footprint must be co-designed per the WSSFM10R2 datasheet. This page synthesizes distributor pricing, drop-in alternatives, and FCC/IC certification context not found in the manufacturer datasheet alone, helping engineers evaluate the SFM10R2 against modern Sigfox and LPWAN module choices.
SFP-10G-ZR-I-C - 10GBASE-ZR SFP+ 80km SMF 1550nm Industrial | Cisco
The Cisco SFP-10G-ZR-I-C is a multirate 10 Gigabit SFP+ optical transceiver for extended-reach links, delivering 10GBASE-ZR, 10GBASE-ZW, and OTU2/OTU2e throughput up to 80 km over standard single-mode fiber (G.652 SMF) at a 1550 nm nominal wavelength via a duplex LC connector. The "I" suffix denotes industrial temperature grade (-40 °C to 85 °C), while the "C" suffix denotes Cisco OEM compatibility coding for use in Cisco switching and routing platforms. A Small Form-Factor Pluggable Plus (SFP+) transceiver is a hot-swappable optical module used in 10 Gigabit Ethernet, 10G Fibre Channel, and OTN (Optical Transport Network) equipment. SFP+ is the standardized successor to the 1G SFP cage, sharing the same physical footprint but upgrading the electrical interface to SFF-8431 / SFF-8432 MSA-compliant signaling for 10 Gbps line rates. Within the broader taxonomy, SFP+ belongs to the pluggable optical transceiver family, which sits above fixed-port optics and below higher-density form factors such as QSFP+ and QSFP28. Key features include a 1550 nm EML laser with APD receiver, DOM/DDM (Digital Optical Monitoring) support via a 2-wire serial interface per SFF-8472, multirate operation (10.3 Gbps Ethernet and 11.05/11.10 Gbps OTU2/OTU2e), LC duplex connector, and industrial-temperature operation from -40 °C to 85 °C. The module is designed to be Cisco-spec compliant rather than strictly IEEE 802.3ae standardized for the ZR reach class. Technically, the module implements EML-based optics with APD reception and built-in CDR for jitter performance, with DOM exposing TX power, RX power, temperature, laser bias, and voltage for link diagnostics. The 1550 nm wavelength is chosen specifically to minimize chromatic dispersion over the 80 km SMF span. Typical applications include long-haul data-center interconnect (DCI), metro Ethernet aggregation, service-provider transport rings, dark-fiber enterprise backbones, and OTN multiplexing of 10G client signals. When designing a link, engineers must perform a strict optical budget calculation (TX power − fiber loss − connector/splice loss ≥ RX sensitivity) and ensure the host switch accepts the industrial temperature grade.
SI21662-D60-GMR - Dual DVB-S2X/S2/S Demodulator | Skyworks
The Skyworks SI21662-D60-GMR is a dual digital satellite demodulator IC that supports the DVB-S2X (ETSI EN 302 307-2), DVB-S2 (ETSI EN 302 307-1), and DVB-S (EN 300 421) broadcast standards, housed in a 68-pin QFN (8x8 mm) exposed-pad package. It integrates two independent demodulator cores, enabling simultaneous reception of dual satellite channels from a single LNB feed in set-top boxes, DVRs, and PC TV tuner peripherals. According to DigiKey, it is registered as a Video Demodulator IC with I2C and serial control interfaces and operates from a 1.14 V to 3.6 V supply rail, targeting low-power front-end designs. A digital satellite demodulator (sometimes called a DVB-S/S2/S2X demod) is the baseband processing block that recovers compressed MPEG transport-stream data from a digitized IF or L-band signal sourced from a tuner frontend. It sits between the tuner IC (typically a CAN or SiLabs tuner) and the host MPEG decoder or system-on-chip. In the receiver chain, the demodulator operates downstream of an ADC and feeds either an MPEG decoder or a PCIe/USB bridge to the host CPU. The Si21662 family is the dual-channel evolution of the Si216x/8x single-demodulator line and shares an API across the whole family, letting firmware reuse existing drivers when migrating between single and dual designs. Key features include support for QPSK, 8PSK, 16APSK, 32APSK, and 64APSK modulation constellations as required by DVB-S2X, plus adaptive LDPC FEC decoding and a flexible serial TS (transport-stream) interface to the host. It is pin-to-pin compatible with the broader Si216x and Si2168x single-demodulator family and shares an API with Skyworks Si216x and Si2168x single and dual demodulators, simplifying dual-channel vs single-channel software migration. The 68-QFN exposed-pad package also provides a low thermal resistance path from die to PCB copper. Internally, the Si21662 is built around two demodulator cores each with their own digital front-end (matched filter, carrier recovery, timing recovery, frame synchronizer), a shared on-chip microcontroller running Skyworks firmware, and a single multi-standard FEC unit that can be time-shared between the two channels. Because the dual cores share crystal, LDO, and TS interface pins, careful pin assignment near a noisy tuner must be observed for best phase-noise immunity. Typical applications include dual-tuner DVR satellite receivers, multi-room satellite STBs, USB/PCIe PC TV tuner dongles supporting DVB-S2X, and headend monitoring receivers where two transponders must be monitored simultaneously. Designers commonly pair it with a Skyworks Si214x tuner and a host SoC such as the Broadcom BCM72xx family for complete satellite receiver sub-systems. When designing with this part, budget adequate PCB area under the exposed pad for thermal dissipation and stitch the ground pins with vias. Keep the I2C bus short (under 50 mm) and add 4.7 kohm pull-ups to the host rail to avoid start-up contention. Always load the latest Skyworks firmware/Binary Driver Interface package to enable DVB-S2X 64APSK features.
SI2434-D-FT - 33.6 kbps ISOmodem | Skyworks Solutions
Skyworks Solutions Inc. SI2434-D-FT is a 33.6 kbps V.34 data ISOmodem system-side integrated circuit designed for data modem and communications equipment. The device supports ITU-T and Bell data modem formats including V.21, V.22, V.23, V.29, V.32, V.32bis, V.34, V.42, V.42bis, V.44, MNP2-5, Fast Connect, and Bell 103 and Bell 212A formats. The SI2434-D-FT is housed in a 24-pin TSSOP package. An ISOmodem is a highly integrated data communications modem controller that combines modem signal processing, line-interface functions, and host-control interfaces into one device. This type of integrated circuit is used within the broader hierarchy of communications semiconductors, specifically in modem ICs and data communications interface controllers. The SI2434-D-FT is intended for system-side implementations where an external host processor controls the modem through UART, SPI, or parallel interfaces. Key features include support for data rates from 300 bps up to 56 kbps, automatic rate negotiation for Type I and Type II caller-ID decoding, and no requirement for external ROM or RAM. The device also supports flexible clocking options, including a low-cost 32.768 kHz oscillator and 4.915 MHz clocking, as described in the Revision D data sheet covering the Si2457, Si2434, Si2415, and Si2404 family. The SI2434-D-FT combines multiple modem formats and negotiation functions in a single controller, reducing the need for separate modulation and protocol blocks. Its system-side architecture allows a host processor to manage configuration, data transfer, and line signaling through the supported serial or parallel control interfaces. This makes the device suitable for embedded telephony, fax, data terminal, modem equipment, and other legacy WAN-access designs. Typical deployments include 33.6 kbps modem systems, V.34 data communication equipment, integrated data/fax modem modules, and telephone-line terminal products. The 24-pin TSSOP package is suitable for compact surface-mount assemblies where a high pin count is required for modem control, clocking, data, and line-interface connections. The principal design consideration is ensuring that the host interface, clock source, line interface, and external analog circuitry are configured according to the manufacturer’s application guidance. Because the SI2434-D-FT is a legacy data-modem controller, system designers should verify the required modem standard, line-side interface, supported clocking method, and package-level land pattern before releasing a new design. The manufacturer data sheet and the component’s pin description should be used to assign the 24 TSSOP connections and to implement the required support circuitry. This product summary consolidates the verified product identity, supported modem formats, package information, and practical use cases into an engineering-focused reference for selecting and integrating the SI2434-D-FT.
SI2494-A-FM - 56 kbps V.92/V.34 ISOMODEM | Skyworks Solutions
The Skyworks Solutions SI2494-A-FM is a 56 kbps V.92 and V.34 ISOMODEM controller/processor IC with Global DAA support, supplied in a 38-pin QFN package measuring 5 x 7 mm. The device is intended for system-side data access arrangements where a telephone-line modem must support legacy V.34 operation alongside V.92 data-rate capability. Its 38-QFN package and exposed-pad construction place the modem controller in a compact surface-mount footprint suitable for communications equipment and embedded access products. An ISOMODEM is an integrated modem chipset solution that combines modem signal processing with telephone-interface functions and associated digital control. Within the broader semiconductor hierarchy, the SI2494-A-FM belongs to the modem controller and network-interface controller class, rather than to a conventional general-purpose microprocessor or standalone analog line transceiver. Its V.34/V.92 support is intended for interoperable data transmission over switched telephone-network and compatible access lines. The SI2494-A-FM is identified as a system-side ISOmodem product and is associated with a 56 kbps data rate. The device family is described in the product documentation as a V.92 and V.34 ISOMODEM with Global DAA, while the 38-pin QFN package is specified as 5 x 7 mm. The exposed-pad package provides a direct thermal path to the PCB and should be connected according to the package land pattern and thermal design guidance. Typical communications uses include centralized modem modules, customer-premises equipment, telephone-line data products, industrial data links, and legacy serial-access systems that require V.92/V.34 interoperability. The controller should be paired with the appropriate line-side interface, isolation barrier, power regulation, crystal or clock network, and host controller required by the end product. Its 56 kbps class is substantially higher than V.34 operation while retaining compatibility with the older modem standard. Design work should begin with the manufacturer’s SI2494/93/57/39/34/15/04 ISOmodem chipset-family guidance. Verify clock, supply sequencing, line-side signaling, exposed-pad soldering, and DAA implementation against the final modem architecture. For an existing board, confirm the 38-QFN 5 x 7 mm footprint, pin functions, thermal pad arrangement, and software compatibility before assigning a replacement role. This page combines package, protocol, compliance, and application information with practical design guidance and a structured comparison framework. It is intended to help engineers identify whether the SI2494-A-FM fits a telephone-data product, understand its integration constraints, and plan a qualified sourcing or replacement review.
SI3015-F-FS - 2.4 kbps V.90 Modem | Silicon Labs | SOIC-16
The Silicon Labs SI3015-F-FS is a 2.4 kbps V.90 modem chipset with ITU V.22bis ISOModem operation, error correction, and an integrated direct access arrangement in a 16-pin SOIC package. The SI3015-F-FS is intended for telephone-line data communication designs that require a compact line-side modem solution. It combines a 2400 bps modem function with a programmable line interface for connection to global telephone-line networks. An ISOModem chipset is a semiconductor implementation of International Telecommunication Union modem recommendations with an integrated line-side interface. In the broader product hierarchy, it belongs to the modem chipset, telecom interface IC, communication semiconductor, and interface IC categories. Its integrated direct access arrangement provides the physical interface between the modem data path and the external telephone network, reducing the amount of surrounding line-interface circuitry required by the host system. The SI3015-F-FS supports 2400 bps modem operation and V.90 data formatting. The associated ISOModem description identifies V.22bis operation with error correction, while the distributor product classification identifies the component as a 2.4 kbps V.90 modem. These features make it relevant to legacy data communications, embedded telephone equipment, remote data access, and industrial modem applications where standardized 2400 bps line communication is required. The device is packaged in a 16-pin SOIC measuring 3.90 mm wide. It is supplied in tube packaging and is identified as lead-free and RoHS-compliant. The SOIC-16 surface-mount format supports conventional PCB assembly while preserving a narrow outline for communication equipment with limited board area. The integrated line interface and standardized modem protocol reduce the functional blocks that the board designer must assemble around the chipset. Typical implementations include telephone-line data terminals, embedded equipment-access modules, industrial remote-monitoring equipment, point-of-sale systems, and legacy telecommunications test equipment. In these systems, the SI3015-F-FS can serve as the line-side modem element while a host processor or communications controller manages the data protocol and higher-level application traffic. Designers should verify the external line-network components, interface timing, isolation strategy, and system grounding against the manufacturer application information before production release. Because the SI3015-F-FS is a complete modem-oriented part rather than a general-purpose serial transceiver, firmware, host-driver, and country-specific telephone-network requirements remain important integration constraints. This page organizes the SI3015-F-FS identification, package information, compliance details, drop-in comparison candidates, and application guidance into an engineering-focused reference. It also highlights which replacement claims can be supported by documented part identities and which electrical or pin-level details still require confirmation from the manufacturer datasheet.
SI4112-D-GM - 1 GHz RF Frequency Synthesizer | Skyworks
The Skyworks Solutions Inc. SI4112-D-GM is a 1 GHz RF frequency synthesizer IC packaged in a 28-VFQFN exposed-pad package. It performs IF and dual-band, low-noise RF frequency synthesis for wireless personal communications while reducing external passive-component requirements and eliminating external VCOs and varactor diodes. The verified product information identifies a 1 GHz synthesis range and a single synthesizer channel. Its integrated approach supports communication equipment requiring accurate local frequency generation while improving power efficiency and reducing board complexity. An RF frequency synthesizer is a timing and frequency-generation IC that derives a stable output from a reference signal. Within the signal-chain hierarchy, the SI4112-D-GM is an RF synthesizer, a phase-locked-loop device, a clock-generation component, and ultimately an RF and wireless semiconductor. Its role is to establish a programmable frequency reference for RF signal paths rather than regulate a power rail or amplify an analog signal. Integrating the synthesis functions reduces the number of external discrete elements required by a communication subsystem. The principal verified features are the 1 GHz maximum synthesizer frequency, 1 GHz synthesis capability, single-channel architecture, 28-VFQFN exposed-pad construction, and RF synthesis function. Skyworks describes the device as addressing price-sensitive, low-power, high-performance personal-wireless requirements by substantially reducing external passive-component count. The exposed pad provides a defined thermal and land-pattern feature in the package, while the compact VFQFN format supports high-density RF board layouts. The device family is associated with IF and dual-band RF synthesis, making it relevant to wireless personal communications, RF transceivers, frequency-generation modules, and communication test equipment. Because the supplied sources do not provide complete operating-voltage, reference-input, output-power, phase-noise, temperature, or control-interface values, those specifications are intentionally not inferred. Engineers should consult the manufacturer datasheet and evaluate the complete electrical and pin-level requirements before releasing a production design. Typical design use places the SI4112-D-GM in the frequency-generation section of an RF communication system. Its integrated synthesizer reduces external VCO and varactor requirements, which can shorten RF layout effort and lower component count compared with a discrete implementation. The 28-VFQFN exposed-pad package still requires careful thermal-via layout and short, controlled RF interconnects to preserve intended performance. The key implementation consideration is package and RF layout validation. Place the device according to the manufacturer land pattern, provide the specified reference and decoupling connections, and verify exposed-pad soldering and thermal-via density. Do not substitute a 24-TSSOP part such as SI4112-D-GT for this VFQFN device without a complete mechanical and pin-level review. This product page consolidates the verified Skyworks and distributor information, distinguishes the VFQGN device from differently packaged family members, and highlights practical RF layout considerations that are not apparent from a basic distributor listing.
SI4112-D-GMR - 1 GHz RF Frequency Synthesizer | Skyworks (Tape & Reel)
The Skyworks Solutions Inc. SI4112-D-GMR is a 1 GHz RF frequency synthesizer IC packaged in a 28-VFQFN exposed-pad package. It performs IF and dual-band, low-noise RF frequency synthesis for wireless personal communications while reducing external passive-component requirements and eliminating external VCOs and varactor diodes. The verified product information identifies a 1 GHz synthesis range and a single synthesizer channel. Its integrated approach supports communication equipment requiring accurate local frequency generation while improving power efficiency and reducing board complexity. An RF frequency synthesizer is a timing and frequency-generation IC that derives a stable output from a reference signal. Within the signal-chain hierarchy, the SI4112-D-GMR is an RF synthesizer, a phase-locked-loop device, a clock-generation component, and ultimately an RF and wireless semiconductor. Its role is to establish a programmable frequency reference for RF signal paths rather than regulate a power rail or amplify an analog signal. Integrating the synthesis functions reduces the number of external discrete elements required by a communication subsystem. The principal verified features are the 1 GHz maximum synthesizer frequency, 1 GHz synthesis capability, single-channel architecture, 28-VFQFN exposed-pad construction, and RF synthesis function. Skyworks describes the device as addressing price-sensitive, low-power, high-performance personal-wireless requirements by substantially reducing external passive-component count. The exposed pad provides a defined thermal and land-pattern feature in the package, while the compact VFQFN format supports high-density RF board layouts. The device family is associated with IF and dual-band RF synthesis, making it relevant to wireless personal communications, RF transceivers, frequency-generation modules, and communication test equipment. Because the supplied sources do not provide complete operating-voltage, reference-input, output-power, phase-noise, temperature, or control-interface values, those specifications are intentionally not inferred. Engineers should consult the manufacturer datasheet and evaluate the complete electrical and pin-level requirements before releasing a production design. Typical design use places the SI4112-D-GMR in the frequency-generation section of an RF communication system. Its integrated synthesizer reduces external VCO and varactor requirements, which can shorten RF layout effort and lower component count compared with a discrete implementation. The 28-VFQFN exposed-pad package still requires careful thermal-via layout and short, controlled RF interconnects to preserve intended performance. The key implementation consideration is package and RF layout validation. Place the device according to the manufacturer land pattern, provide the specified reference and decoupling connections, and verify exposed-pad soldering and thermal-via density. Do not substitute a 24-TSSOP part such as SI4112-D-GT for this VFQFN device without a complete mechanical and pin-level review. This product page consolidates the verified Skyworks and distributor information, distinguishes the VFQGN device from differently packaged family members, and highlights practical RF layout considerations that are not apparent from a basic distributor listing.
SI4123-D-GM - Dual-Band RF Synthesizer | Skyworks
Skyworks Solutions SI4123-D-GM is a dual-band RF frequency synthesizer with integrated VCOs for wireless personal communications, covering intermediate-frequency and dual-band synthesis requirements. According to the retrieved product listing, it operates from 2.7 V to 3.6 V, supports frequency ranges of 900 MHz to 1800 MHz and 750 MHz to 1500 MHz, and provides output power from -14 dBm to +1 dBm. The device is associated with a 28-pin VFQFN exposed-pad package in the supplied cross-reference data. A frequency synthesizer generates a stable, programmable output signal by combining a phase-locked loop with a voltage-controlled oscillator. An RF synthesizer extends this function into the radio-frequency domain and is used to establish carrier or intermediate-frequency signals in wireless receivers, transmitters, and related communication equipment. The SI4123 family is positioned as a low-power, price-sensitive solution for personal wireless communications. The SI4123-D-GM integrates the VCO functions, which the Skyworks product description says reduces the external passive-component count and eliminates external VCOs and varactor diodes. This integration can simplify RF board layouts and reduce assembly requirements. Its dual-band capability allows one device family to address multiple wireless frequency plans, while programmable synthesis gives system designers flexibility in setting the generated frequency. Typical wireless communication uses include RF front-end signal generation, intermediate-frequency synthesis, and dual-band transceiver support. The 2.7 V to 3.6 V supply range is suitable for low-voltage RF systems, while the listed 18 mA to 27 mA current range should be checked against the actual operating mode and frequency plan. The exposed-pad package also requires attention to PCB thermal dissipation and layout quality. Designers should follow the manufacturer datasheet for the complete pinout, recommended loop-filter components, reference-clock requirements, RF output matching network, and decoupling layout. The available search results identify the device as obsolete or associated with an obsolete product status in comparison pages, so lifecycle confirmation should be completed before new production sourcing. This page consolidates verified distributor results, cross-reference findings, package information, application context, and engineering cautions.
SI4123-D-GMR - Dual-Band RF Synthesizer | Skyworks (Tape & Reel)
Skyworks Solutions SI4123-D-GMR is a dual-band RF frequency synthesizer with integrated VCOs for wireless personal communications, covering intermediate-frequency and dual-band synthesis requirements. According to the retrieved product listing, it operates from 2.7 V to 3.6 V, supports frequency ranges of 900 MHz to 1800 MHz and 750 MHz to 1500 MHz, and provides output power from -14 dBm to +1 dBm. The device is associated with a 28-pin VFQFN exposed-pad package in the supplied cross-reference data. A frequency synthesizer generates a stable, programmable output signal by combining a phase-locked loop with a voltage-controlled oscillator. An RF synthesizer extends this function into the radio-frequency domain and is used to establish carrier or intermediate-frequency signals in wireless receivers, transmitters, and related communication equipment. The SI4123 family is positioned as a low-power, price-sensitive solution for personal wireless communications. The SI4123-D-GMR integrates the VCO functions, which the Skyworks product description says reduces the external passive-component count and eliminates external VCOs and varactor diodes. This integration can simplify RF board layouts and reduce assembly requirements. Its dual-band capability allows one device family to address multiple wireless frequency plans, while programmable synthesis gives system designers flexibility in setting the generated frequency. Typical wireless communication uses include RF front-end signal generation, intermediate-frequency synthesis, and dual-band transceiver support. The 2.7 V to 3.6 V supply range is suitable for low-voltage RF systems, while the listed 18 mA to 27 mA current range should be checked against the actual operating mode and frequency plan. The exposed-pad package also requires attention to PCB thermal dissipation and layout quality. Designers should follow the manufacturer datasheet for the complete pinout, recommended loop-filter components, reference-clock requirements, RF output matching network, and decoupling layout. The available search results identify the device as obsolete or associated with an obsolete product status in comparison pages, so lifecycle confirmation should be completed before new production sourcing. This page consolidates verified distributor results, cross-reference findings, package information, application context, and engineering cautions.
SI4126-F-BM - 2.3 GHz RF Synthesizer | Skyworks
The Skyworks Solutions SI4126-F-BM is a frequency-synthesizer IC with a maximum stated frequency of 2.3 GHz, one RF output, and a 28-pin VQFN exposed-pad package. The verified distributor listing identifies it as an RF synthesizer for clock-generation, PLL, and wireless-communications applications, while the available historical family description identifies integrated VCOs, loop filters, reference dividers, VCO dividers, and phase detectors. A frequency synthesizer is a timing and RF signal-generation component that uses a phase-locked loop to create an output frequency referenced to a stable external source. In the wireless-communications hierarchy, this device belongs to RF and wireless clock and timing ICs rather than a general-purpose clock generator. Its PLL-based architecture supports programmable frequency synthesis for RF and IF signal paths. The verified data specifies a 2.3 GHz maximum frequency, one RF output, a 2.7 V to 3.6 V operating supply range as stated in the available product overview, and a 28-VFQFN exposed-pad package. The family-level description also reports low phase noise and minimal external-component requirements. These characteristics make the part relevant to compact RF systems where local frequency generation is needed instead of a fixed-frequency oscillator. The SI4136-family architecture uses three VCOs, loop filters, reference and VCO dividers, and phase detectors, with divider and power-down settings programmable through a three-wire serial interface. The available source material describes dual-band RF synthesis and integration of VCOs, loop filters, varactors, and resonators, reducing the number of discrete frequency-generation components required around the IC. Typical use cases include wireless transceivers, RF modems, ISM-band equipment, IF/RF synthesis, and embedded radio systems. The part may also be considered for test equipment or communication modules requiring a programmable RF reference. Final suitability depends on the required output frequency, reference input, loop-filter implementation, supply sequencing, and board-level RF layout. Designers should follow the manufacturer datasheet for the exact pin assignments, recommended reference components, VCO configuration, exposed-pad land pattern, and decoupling network. Because the verified material does not provide a complete electrical table or an explicit package-body drawing in the supplied fields, parameters such as phase-noise profiles, output power, temperature range, and absolute maximum ratings require confirmation from the manufacturer documentation. This product page consolidates the verified distributor specifications, source URLs, package identity, and design caveats so engineers can distinguish a genuine RF synthesizer replacement from a merely similar clock or PLL component.
SI4126-F-BMR - 2.3 GHz RF Synthesizer | Skyworks (Tape & Reel)
The Skyworks Solutions SI4126-F-BMR is a frequency-synthesizer IC with a maximum stated frequency of 2.3 GHz, one RF output, and a 28-pin VQFN exposed-pad package. The verified distributor listing identifies it as an RF synthesizer for clock-generation, PLL, and wireless-communications applications, while the available historical family description identifies integrated VCOs, loop filters, reference dividers, VCO dividers, and phase detectors. A frequency synthesizer is a timing and RF signal-generation component that uses a phase-locked loop to create an output frequency referenced to a stable external source. In the wireless-communications hierarchy, this device belongs to RF and wireless clock and timing ICs rather than a general-purpose clock generator. Its PLL-based architecture supports programmable frequency synthesis for RF and IF signal paths. The verified data specifies a 2.3 GHz maximum frequency, one RF output, a 2.7 V to 3.6 V operating supply range as stated in the available product overview, and a 28-VFQFN exposed-pad package. The family-level description also reports low phase noise and minimal external-component requirements. These characteristics make the part relevant to compact RF systems where local frequency generation is needed instead of a fixed-frequency oscillator. The SI4136-family architecture uses three VCOs, loop filters, reference and VCO dividers, and phase detectors, with divider and power-down settings programmable through a three-wire serial interface. The available source material describes dual-band RF synthesis and integration of VCOs, loop filters, varactors, and resonators, reducing the number of discrete frequency-generation components required around the IC. Typical use cases include wireless transceivers, RF modems, ISM-band equipment, IF/RF synthesis, and embedded radio systems. The part may also be considered for test equipment or communication modules requiring a programmable RF reference. Final suitability depends on the required output frequency, reference input, loop-filter implementation, supply sequencing, and board-level RF layout. Designers should follow the manufacturer datasheet for the exact pin assignments, recommended reference components, VCO configuration, exposed-pad land pattern, and decoupling network. Because the verified material does not provide a complete electrical table or an explicit package-body drawing in the supplied fields, parameters such as phase-noise profiles, output power, temperature range, and absolute maximum ratings require confirmation from the manufacturer documentation. This product page consolidates the verified distributor specifications, source URLs, package identity, and design caveats so engineers can distinguish a genuine RF synthesizer replacement from a merely similar clock or PLL component.
SI4136-F-GT - 2.5 GHz RF Synthesizer | Silicon Labs
The Silicon Labs SI4136-F-GT is a monolithic ISM RF synthesizer IC with three integrated voltage-controlled oscillators, loop filters, reference and VCO dividers, and phase detectors. It supports RF synthesis for wireless communications and is identified with a 2.5 GHz maximum frequency in distributor listings. The device is packaged in a 24-TSSOP measuring 0.173 inch, or 4.40 mm, in width. An RF frequency synthesizer generates a stable, programmable output from a reference frequency by comparing a divided output with a divided reference and correcting the VCO through a feedback loop. In the Si4136, three integrated VCOs, resonators, varactors, loop filters, phase detectors, and programmable dividers reduce the number of external RF components required. This integration is useful when a wireless product needs both IF and RF synthesis from one IC. Verified feature data identifies low phase noise, minimal external-component requirements, a 5 µA standby current, and a 25.7 mA typical supply current. A three-wire serial interface programs divider and power-down settings. The 2.5 GHz capability makes the part applicable to ISM wireless transmitters, receivers, WLAN radio designs, and other RF communication equipment, provided the selected output frequency and channel plan fall within the device's specified operating limits. The 24-TSSOP package is designed for surface-mount PCB assembly, but RF performance depends on controlled grounding, short supply connections, clean reference routing, and careful output matching. Power-supply decoupling and loop-filter layout should follow the manufacturer datasheet and reference-circuit recommendations. The integrated synthesizer simplifies BOM size, yet PCB parasitics, reference jitter, antenna coupling, and thermal conditions can still affect phase noise and lock behavior. This page consolidates the verified distributor description, package information, feature snippets, pricing evidence, and cross-reference search results for SI4136-F-GT. It also distinguishes verified drop-in alternatives from unsupported replacements; no cross-brand drop-in equivalent was established by the supplied data. Designers should verify the complete electrical limits, register map, pin names, and reference configuration in the applicable manufacturer datasheet before release. Especially, the product is a frequency synthesizer rather than a complete RF transceiver, and its performance must be evaluated together with the external reference, matching network, antenna path, and system power architecture.