Integrierte Schaltungen

Unterkategorien

📁 ADC/DAC 2518 Produkte 📁 Verstärker-ICs 793 Produkte 📁 Audio-Codecs 16 Produkte 📁 Audio-ICs 2 Produkte 📁 Takt & Timing 287 Produkte 📁 DSP 962 Produkte 📁 Datenakquise-ICs 2 Produkte 📁 Digitale Potentiometer 4 Produkte 📁 Display-Treiber & -Controller 1 Produkte 📁 FPGA & CPLD 6666 Produkte 📁 Schnittstellen-ICs 1568 Produkte 📁 LED-Treiber 1 Produkte 📁 Logik-ICs 305 Produkte 📁 Speicher-ICs 875 Produkte 📁 Mikrocontroller 18688 Produkte 📁 Mikroprozessoren 4 Produkte 📁 Motortreiber 1 Produkte 📁 Sonstiges 1 Produkte 📁 Sensor and Detector Interfaces 1 Produkte 📁 Spezialisierte ICs 15 Produkte 📁 Video-ICs 13 Produkte

Produkte (32725)

SI3015-KS - 2.4 kbps V.90 Modem IC | Skyworks Solutions
SI3015-KS

SI3015-KS - 2.4 kbps V.90 Modem IC | Skyworks Solutions

The Skyworks Solutions SI3015-KS is a 2.4 kbps V.90 modem integrated circuit in a 16-pin SOIC package. The verified distributor listing identifies the device as a modem IC with V.90 operation, while available documentation describes the SI3015 family as a V.22BIS ISOMODEM chipset with error correction. These positions place SI3015-KS in the interface-IC hierarchy for legacy data communication and telephone-line modem designs. Its package supports conventional surface-mount PCB assembly while preserving access to the analog and digital interfaces required by a host controller. A modem integrated circuit is a mixed-signal interface component that converts digital data into line-signal waveforms and reconstructs digital data from received signals. Within the broader category of interface ICs, this function bridges a host processor or data terminal with a communications channel. The V.90 designation identifies the modem standard associated with the listed 2.4 kbps operating class, while V.22BIS documentation provides additional family-level context. Error-correction capability is particularly relevant when a design must recover reliably from line noise or signal impairments. The SI3015-KS combines an integrated modem function with a compact 16-SOIC footprint. Its primary verified features are the 2.4 kbps modem rate, V.90 listing, 16-pin SOIC package, surface-mount construction, and error-correction support as stated in the indexed datasheet description. The package is suited to industrial and telecommunications equipment that retains V.22bis or V.90-era interfaces. Because this is a legacy interface product, system compatibility, electrical limits, clocking, and interface timing should be confirmed against the original manufacturer documentation before a new PCB is released. The SI3015-KS belongs to a signal path where analog line-side behavior and digital host-side behavior meet. Designers commonly place it in terminal equipment, data-card hardware, remote-control systems, and embedded telephone-data products. Its 2.4 kbps speed is much slower than modern broadband links, but it remains useful for low-bandwidth, legacy, or cost-constrained systems whose counterpart equipment still supports the same modem standard and physical interface. A key procurement consideration is lifecycle status. The verified Mouser result states that SI3015-KS is “Not recommended for new designs” and directs users to the Si3018 datasheet. Consequently, the SI3015-KS is most appropriate for repair, continuation, or compatibility work rather than unrestricted greenfield adoption. Existing production programs should verify lifecycle status, availability, and any notice of change before committing a long-term BOM. This page consolidates verified distributor descriptions, lifecycle guidance, application context, and sourcing information for SI3015-KS. It distinguishes the 16-SOIC V.90 2.4 kbps listing from related SI3015 documentation while avoiding unsupported electrical claims. Engineers should use the datasheet and line-interface circuitry for final timing, pin, protection, and component-selection decisions.

Angebot Auf Lager
SI3016-BS - 3.3V Global DAA V.90 Modem | Skyworks
SI3016-BS

SI3016-BS - 3.3V Global DAA V.90 Modem | Skyworks

The Skyworks Solutions SI3016-BS is a 3.3 V enhanced global direct access arrangement and V.90 modem interface IC in a 16-pin SOIC package. It integrates the line-side functions required by processors that already contain a system-side DAA, including a programmable line interface, line-voltage monitor, loop-current monitor, parallel handset detection, and overload protection. Verified distributor data identifies the SI3016-BS as a modem-class, 16-SOIC device. A direct access arrangement, or DAA, is a telephone-line interface that separates the external analog network from the digital host processor. In the SI3016 architecture, the host processor provides the system-side DAA while SI3016-BS handles the line-side function. This division allows a design to eliminate a conventional analog front end, isolation transformer, relays, opto-isolators, and a 2- to 4-wire hybrid, according to the manufacturer datasheet carried by Mouser. Key verified features include 3.2 dBm transmit/receive levels, a 7 µA on-hook line-monitor current, parallel handset detection, and overload protection. The programmable line interface supports adaptation to global telephone-line requirements, while the 3.3 V supply matches contemporary embedded processor systems. These features are relevant to modem, voice-over-data, fax, and telephony equipment that uses a host processor with an integrated system-side DAA. SI3016-BS combines a mixed-signal line interface with digital modem signaling in one package. Its 16-pin small-outline package supports conventional surface-mount assembly and keeps the telephone-line interface compact. The part is identified as an industrial-temperature component in one distributor result, but the exact temperature range and absolute electrical limits were not included in the supplied excerpts and therefore are not inferred here. Typical applications include central-office terminal equipment, caller-ID interfaces, voice gateways, fax machines, modems, and embedded telephone systems. In these systems, the SI3016-BS can sit between the telephone network and a processor that integrates the system-side DAA. Its value comes from reducing external analog-interface components while retaining programmable line control and protection functions. Designers should confirm compatibility with the selected host processor, its system-side DAA, and the country-specific telephone-network requirements before production release. The manufacturer datasheet should govern pin connections, line-interface programming, electrical limits, timing, and test conditions. Designers should also preserve the required isolation and surge-protection strategy at the board and line-interface boundary. This page consolidates verified distributor listings, the available manufacturer datasheet link, package information, and documented feature data into one engineering-oriented reference. It deliberately leaves unsupported electrical limits, pricing tiers, pin functions, lifecycle claims, and drop-in equivalents unstated until authoritative data is available.

Angebot Auf Lager
SI3016-FS - 3.3V V.90 Line-Side DAA | Skyworks Solutions
SI3016-FS

SI3016-FS - 3.3V V.90 Line-Side DAA | Skyworks Solutions

Skyworks Solutions SI3016-FS is a 3.3 V enhanced global direct access arrangement (DAA) line-side interface IC with a V.90 modem function, supplied in a 16-pin small-outline integrated-circuit package. The device provides a programmable telephone-line interface and is designed to reduce the external analog circuitry required in global line-side applications. According to the manufacturer data sheet, integrating the DAA eliminates the need for a separate analog front end, isolation transformer, relays, opto-isolators, and a 2- to 4-wire hybrid. A direct access arrangement is the line-side interface between a telephone network and a modem or host processor. Within the broader hierarchy, the SI3016-FS is a DAA integrated circuit, a line interface IC, a modem IC, and ultimately an interface IC within the semiconductor category. Its programmable line interface is intended to support global telephone-line requirements while reducing board area and the number of discrete components that a conventional analog line interface would require. The verified listing identifies the SI3016-FS as a 3.3 V, V.90, 16-SOIC device. The compact 16-pin SOIC package is a surface-mount package in the SOIC family. The SI3016-FS is specifically associated with a Skyworks Solutions interface for connecting a line-side DAA arrangement to a compatible Silicon Laboratories host-processor system-side interface. The provided data also distinguishes the SI3016-F-FS ordering variant, but it does not provide a complete pin-level comparison proving that it is a drop-in replacement. Key benefits include integration of the line-side DAA function, a programmable telephone-line interface, and elimination of several discrete protection and coupling components. These characteristics can simplify compliance-oriented telephone-interface designs, reduce assembly cost, and conserve PCB area compared with discrete implementations. The value is greatest where the host processor supports the required integrated system-side DAA interface and where the complete SI3016 reference design has been evaluated against the applicable network requirements. Typical uses include V.90 modem equipment, line-side DAA modules, telephone-network interface circuits, and compact data-over-voice products. The SI3016-FS is also relevant to industrial or communications equipment requiring an integrated line-side interface, subject to validation of host compatibility, isolation, surge exposure, line impedance, and regulatory requirements for the target country or network. The primary design consideration is host-interface and regulatory validation: the device cannot be treated as a generic RS-232 modem because it is a line-side DAA with telephone-network coupling requirements. Designers should follow the manufacturer data sheet for external components, line-side protection, clocking, grounding, and host connections. This page synthesizes verified distributor data, the SI3016 data sheet, alternative evidence, and practical selection guidance that are not presented as a single raw manufacturer table.

USD $3,76 Auf Lager
SI3016-KS - 3.3V V.90 Embedded Modem DSP | Texas Instruments
SI3016-KS

SI3016-KS - 3.3V V.90 Embedded Modem DSP | Texas Instruments

The Texas Instruments SI3016-KS is a 3.3 V enhanced global direct-access-arrangement line-side IC for embedded V.90 modem designs, with protocol support for V.21, V.22, V.23, V.32, V.34, V.90, Bell 103, and Bell 212A. The device is supplied in a 16-pin small-outline package and is intended for telephone-line interface systems requiring an integrated line-side modem function. Its protocol coverage makes it relevant to legacy embedded communications equipment, telephone interfaces, and data-acquisition systems rather than general-purpose signal processing. An embedded direct-access arrangement, or DAA, is the line-side interface between a telephone network and a modem signal chain. It combines the physical line-interface requirements with programmable modem support, allowing a host processor to manage communications through a dedicated integrated device. In the system hierarchy, the SI3016-KS sits at the interface between a host processor and a telephone line, where signal conditioning, modem protocol support, and line connectivity must be coordinated. Verified distributor information identifies the SI3016-KS as a modem DSP supporting V.21, V.22, V.23, V.32, V.34, V.90, Bell 103, and Bell 212A. The available electrical data identifies a 3.3 V enhanced global DAA and a 1.42 V to 1.65 V supply range for the host-processor-side portion of the specification. The public package description identifies a 16-pin SOP with gull-wing leads, while the exact internal pin assignments and electrical limits require the manufacturer datasheet for board-level design. Typical implementations use the IC in embedded modem equipment, telephone-line data terminals, industrial communication equipment, and legacy WAN or remote-access systems. The broad protocol set allows software or firmware to select among several modem standards instead of requiring a separate modem IC for every line rate. The practical trade-off is that SI3016-KS is a specialized line-side solution rather than a general-purpose DSP, so system designers must verify clocking, analog line-interface requirements, host signaling, and software support against the complete datasheet. For layout, preserve the package footprint, route the telephone-line interface according to the datasheet’s reference application, and verify supply decoupling and signal-return paths before production. The datasheet PDF should be treated as the controlling source for pinout, timing, absolute maximum ratings, and interface details; the available search data does not provide enough verified information to safely invent those values. This page combines distributor metadata, protocol descriptions, sourcing references, and design cautions rather than claiming unverified electrical or timing figures.

Angebot Auf Lager
SI3215-C-FM - ProSLIC SLIC/Codec with 90VPK Ringing | Skyworks
SI3215-C-FM

SI3215-C-FM - ProSLIC SLIC/Codec with 90VPK Ringing | Skyworks

The Skyworks SI3215-C-FM is a single-channel ProSLIC Subscriber Line Interface Concept (SLIC) and CODEC IC housed in a 38-pin QFN (5x7 mm) package, integrating software-configurable 5 REN internal ringing up to 90 VPK, DTMF generation, and a comprehensive set of telephony signaling capabilities with expanded support for Japan and China country requirements. It pairs with the Si3201 line-side DC-DC controller (in a thermally-enhanced 16-pin SOIC) to form a complete FXS interface solution. Supply voltage is 3.13V to 5.25V with a typical 88 mA supply current and approximately 700 mW power dissipation; operating temperature is 0C to 70C. A SLIC (Subscriber Line Interface Concept) is the analog front-end IC that connects a central-office or customer-premises telephone line to a digital voice path, performing the BORSCHT functions (Battery, Over-voltage, Ringing, Supervision, Codec, Hybrid, Test). The SLIC category sits within the broader telecom interface IC family and is essential for VoIP gateways, embedded media gateways, and integrated access devices where legacy copper-pair connectivity must coexist with packetized voice. Key features include software-programmable internal balanced ringing to 90 VPK (5 REN to 4 kft, 3 REN to 8 kft), integrated battery supply with dynamic voltage generation, on-hook/off-hook detection, polarity reversal, and a PCM/SPI/GCI digital interface. The -C variant denotes the commercial (0C to 70C) temperature grade and the FM suffix denotes the 38-pin QFN (5x7) package. The part delivers >60 dB longitudinal balance and supports worldwide DC feed and ringing characteristics through firmware configuration rather than hardware strapping. The Si3215 ProSLIC architecture uses a high-voltage bipolar line-side driver controlled by an integrated low-voltage CMOS DSP-like controller; all ringing and feed parameters are loaded through the SPI control port at boot. Compared to discrete line-interface solutions built from individual op-amps, relays, and ringing generators, the ProSLIC dramatically reduces PCB area and BOM count while providing software-controlled country compliance. Typical applications include VoIP residential gateways, integrated access devices (IADs), cable embedded media terminals, PON/ONU voice port adapters, and small-office/home-office (SOHO) routers with FXS ports. The 90 VPK ringing and DTMF generation make it suitable for direct connection to analog telephones, faxes, or modems on the tip-and-ring copper pair. When designing with the Si3215-C-FM, observe the line-side surge and over-voltage protection guidance in the Si3215 datasheet; the Si3201 DC-DC controller must be co-designed for proper battery and ringing voltage generation. Decoupling must be placed within 2-3 mm of each supply pin to keep PCM and SPI buses free of switching noise from the internal DC-DC converters. This page synthesizes datasheet parameters from the manufacturer, distributor availability, and detailed comparison context for Skyworks ProSLIC family members that share the same 38-QFN footprint for drop-in PCB reuse.

USD $4,95 Auf Lager
SI3215-FM - ProSLIC Programmable CMOS SLIC/Codec, 5 REN, 90Vpk | Skyworks
SI3215-FM

SI3215-FM - ProSLIC Programmable CMOS SLIC/Codec, 5 REN, 90Vpk | Skyworks

The Skyworks (formerly Silicon Laboratories) SI3215-FM is a ProSLIC programmable CMOS Subscriber Line Interface Circuit (SLIC) with integrated codec and ringing/battery voltage generation, housed in a 38-pin QFN (5x7 mm) package. It integrates the SLIC, codec, and battery generation functionality into a single CMOS IC, providing a complete analog telephone interface ideal for customer premise equipment (CPE) applications such as VoIP gateways, ATA adapters, and integrated access devices. What is a SLIC/Codec? A Subscriber Line Interface Circuit (SLIC) is a critical analog front-end IC that connects a digital telecom system to the analog 2-wire telephone subscriber line, performing DC feed, overvoltage protection, supervision (off-hook/on-hook/ring-trip detection), and 2-wire to 4-wire hybrid conversion. The codec digitizes the voice band signal for DSP processing. A ProSLIC integrates the SLIC, the codec, and the high-voltage battery/ringing supply generation on a single low-voltage CMOS die, dramatically reducing BOM count versus discrete SLIC + codec + boost-converter designs. Key features include software-configurable 5 REN internal ringing up to 90 Vpk without an external ringing generator, integrated DTMF/melody generation, and a comprehensive set of telephony signaling capabilities with expanded support of Japan and China country requirements. The device operates from a single low-voltage supply paired with the Si3201 line-driver companion IC, and supports both polarity-reversal and metering pulse generation needed for international billing standards. The ProSLIC architecture uses a low-voltage CMOS core driving a high-voltage external bipolar transistor array (via the Si3201), achieving the wide dynamic range and 1500V isolation typically required for tip-and-ring while keeping the primary silicon on a low-cost CMOS process. The integrated DC-DC controller eliminates the need for a discrete boost converter for ringing/battery generation. Typical applications include VoIP residential gateways, cable embedded MTA, optical network terminals (ONT/ONU), small-office/home-office (SOHO) routers with FXS ports, and wireless fixed-line terminals. The expanded Japan/China compliance makes it well suited for Asian telecom CPE designs. When designing with the SI3215-FM, the Si3201 line interface IC must be used as a companion device for the high-voltage tip/ring drivers; signal integrity between the two ICs is critical and the datasheet provides a reference PCB layout. Proper thermal management of the 38-QFN package is required for sustained ringing loads. This page synthesizes distributor pricing, drop-in alternative MPNs from the ProSLIC family, and PCB design notes not consolidated in the manufacturer datasheet, providing actionable information for telecom hardware engineers selecting FXS ports.

USD $4,05 Auf Lager
SI3215M-C-FMR - Single-Channel SLIC/Codec w/ MOSFET DC-DC | Skyworks
SI3215M-C-FMR

SI3215M-C-FMR - Single-Channel SLIC/Codec w/ MOSFET DC-DC | Skyworks

The Skyworks Solutions (formerly Silicon Labs) SI3215M-C-FMR is a single-channel ProSLIC programmable CMOS Subscriber Line Interface Circuit (SLIC) with integrated codec, ringing, and MOSFET-based DC-DC converter, packaged in a 38-pin QFN (5x7 mm). It operates from a 3.13 V to 5.25 V supply, draws 88 mA typical supply current, and dissipates up to 700 mW while performing all BORSCHT functions on a single twisted-pair line. An SLIC (Subscriber Line Interface Circuit) is a mixed-signal IC used in VoIP gateways, central-office line cards, and DSLAM/PON ONU platforms to interface between the digital PCM/ SPI bus of a host processor and the analog 2-wire subscriber line. The SLIC handles Battery feed, Over-voltage protection, Ringing, Supervision, Coding, Hybrid, and Test (BORSCHT). Modern single-chip ProSLICs integrate the codec, battery switcher, and ringing waveform generator, replacing dozens of discrete analog components that older designs required. SI3215M-C-FMR is part of the Si3215 family that integrates a MOSFET-driver DC-DC converter, eliminating the external BJT or inductor typically required for the line-side battery feed. Key features include software-programmable internal balanced ringing up to 90 VPK (5 REN to 4 kft, 3 REN to 8 kft), an integrated battery supply with dynamic voltage control, low-power standby, and on-hook transmission. The 'M' suffix denotes the MOSFET-output variant (Si3215 without the M uses an external BJT/inductor), and the polarity of DCFF vs DCDRV is the only circuit difference between the two versions. Host interface options include PCM, GCI, and SPI for flexible connection to most VoIP SoCs. Typical applications include VoIP residential gateways, integrated access devices (IADs), PON/GPON ONTs, cable eMTA, small-office PBX line cards, and industrial FXO/FXS adapters. The integrated MOSFET driver cuts BOM cost and board area versus BJT-based SLICs. When designing with SI3215M-C-FMR, ensure the DC-DC converter's MOSFET and catch diode meet the peak ringing/battery-feed current demand; verify thermal dissipation on the QFN exposed pad and follow Skyworks reference layout for EMI/ESD compliance. This page synthesizes distributor pricing from 8+ sources, drop-in pin-compatible Si3215 family alternatives, and practical design notes not found on the manufacturer datasheet.

USD $3,14 Auf Lager
SI32171-C-GM1 - 1-Channel FXS ProSLIC, 42-QFN | Skyworks
SI32171-C-GM1

SI32171-C-GM1 - 1-Channel FXS ProSLIC, 42-QFN | Skyworks

The Skyworks SI32171-C-GM1 is a single-channel ProSLIC (Subscriber Line Interface Concept) device in a 42-pin QFN (5x7 mm) package that delivers a complete foreign-exchange-station (FXS) telephony interface with integrated DC-DC controller, low-power ringing, and PCM/SPI host interface. It is rated for -110 V ringing operation, integrates DTMF detection, and supports both 3.3 V and 1.8 V I/O from a 3.3 V supply. A ProSLIC (Subscriber Line Interface Concept) is a highly integrated mixed-signal IC that replaces dozens of discrete components traditionally needed to interface a digital system-on-chip to the analog two-wire telephone subscriber line. In the system hierarchy, the ProSLIC sits between the host SoC (or DSP) and the tip/ring pair, performing the BORSCHT functions (Battery feed, Over-voltage protection, Ringing, Supervision, Coding, Hybrid, and Testing). As an FXS device, it provides the central office side of the analog subscriber loop and is fundamental to VoIP gateways, integrated access devices, and fixed-line terminal adapters. Key features include a complete single-channel FXS solution, automatic battery voltage generation via the integrated DC-DC controller, internal balanced or unbalanced ringing with patented low-power ringing, global programmability for LSSGR/ITU/ETSI line standards, simplified configuration/diagnostics, and DTMF detect on-chip. The 5x7 mm footprint and reduced BOM significantly shrink the PCB area versus discrete line-interface designs. Technically, the Si3217x family uses CMOS mixed-signal design with on-chip high-voltage charge-pump drivers, an integrated DC-DC switching controller that derives optimal battery voltages per line state, and a Sigma-Delta codec pair for the transmit/receive paths. The automatic battery-voltage tracking dynamically minimizes power dissipation in on-hook, off-hook, and ring states, while the low-power ringing architecture avoids the bulky external ring relay in many designs. Typical applications include VoIP residential gateways, xDSL integrated access devices (IADs), cable telephony eMTA, fiber-to-the-home (ONT/ONU) voice ports, fixed wireless terminals, and small-office/home-office analog terminal adapters (ATAs). It is also used in industrial remote-metering and alarm panels where a single analog FXS port is required. When designing with this part, attention must be paid to the DC-DC inductor selection, line-side protection component choice (over-voltage, surge, PTC), and PCB creepage/clearance between the high-voltage traces and the low-voltage digital interface. The exposed thermal pad must be soldered to a sufficient ground pour for heat dissipation during sustained off-hook or ring states. This page synthesizes distributor pricing, drop-in family variants, and practical design notes not found in the manufacturer datasheet alone, enabling faster BOM selection and supply-chain risk assessment for ProSLIC-based FXS designs.

USD $4,08 Auf Lager
SI4112-BM - 1 GHz IF Synthesizer | Silicon Labs
SI4112-BM

SI4112-BM - 1 GHz IF Synthesizer | Silicon Labs

Silicon Labs SI4112-BM is a 1 GHz frequency-synthesizer IC with an integrated VCO, supplied in a 28-pin MLP package with an exposed pad. It is intended for IF signal generation in wireless communications equipment and is listed as an obsolete EOL device. The verified distributor listing identifies one synthesizer circuit, surface mounting, a 5x5 mm package, and an operating range of -40°C to 85°C. The Si4112-D family performs IF and dual-band RF synthesis, reducing external passive components and eliminating external VCOs and varactor diodes according to the manufacturer product-page result. A frequency synthesizer is a clock-and-timing integrated circuit that generates a controlled output frequency from a reference source. The PLL and integrated VCO provide a compact way to produce stable intermediate-frequency signals in RF receivers, transmitters, and communication systems. In the product hierarchy, this part is a frequency-synthesizer IC, then a PLL/clock-and-timing IC, then a timing and RF synthesis building block within a wireless communication system. The verified listing gives the device's headline frequency capability as 1 GHz. Its 28-VFQFN exposed-pad package is intended for compact surface-mount designs and provides a defined thermal and electrical land pattern. Because the exposed pad is part of the package, the PCB footprint must include the manufacturer's recommended thermal-pad connection and layout. The listed operating temperature range is -40°C to 85°C. Other detailed electrical timing, phase-noise, current, supply-voltage, and tuning-range values were not included in the supplied data and must be confirmed from the manufacturer datasheet before design release. Typical applications include IF synthesis in wireless personal communications, RF receiver and transmitter signal chains, and other communication systems requiring a compact integrated synthesizer. The integrated VCO can reduce the external component count compared with a discrete VCO implementation, but it does not remove the need to validate loop stability, reference noise, tuning range, output drive, and layout performance. The principal design consideration is lifecycle risk: SI4112-BM is marked obsolete in the verified GlobalSpec result. For new production, evaluate an active replacement only after checking its frequency range, package, pinout, supply voltage, reference requirements, and RF performance. Treat distributor inventory as temporary and validate the specific lot before committing to a long-term design. This page consolidates the verified manufacturer and distributor information, explicit lifecycle status, package identity, and sourcing context. It also records missing datasheet parameters rather than inferring them, while the comparison and application notes help engineers distinguish an obsolete but documented device from an unverified substitute.

Angebot Auf Lager
SI4112-BT - 1 GHz Dual-Band RF Synthesizer | Silicon Labs
SI4112-BT

SI4112-BT - 1 GHz Dual-Band RF Synthesizer | Silicon Labs

The Silicon Labs SI4112-BT is a 1 GHz dual-band RF frequency-synthesizer IC with integrated VCOs for wireless communications, supplied in a 24-pin TSSOP package measuring 4.40 mm wide. Its headline characteristics are a 1 GHz maximum stated frequency, one RF output according to the verified distributor listing, and a 24-TSSOP surface-mount package. The SI4112-BT is intended for wireless communication systems requiring programmable high-frequency signal generation with integrated voltage-controlled oscillators. An RF synthesizer is a clock-and-timing semiconductor that generates a controlled output frequency from a reference source. In the broader hierarchy, this product is an RF frequency synthesizer, part of clock and timing ICs, and ultimately a semiconductor used to establish the carrier or local-oscillator signal in a wireless transmitter or receiver. Its integrated VCOs reduce the number of separate frequency-generation components needed in RF designs. The verified distributor information identifies the SI4112-BT as a frequency-synthesizer IC operating up to 1 GHz and packages it as 24-TSSOP, or 0.173-inch by 4.40 mm width. Search results also describe the device as a dual-band RF synthesizer with integrated VCOs for wireless communications. Detailed phase-noise, tuning-range, supply-voltage, output-power, temperature, and lock-time figures were not included in the supplied source data and should be confirmed from the manufacturer datasheet before design release. The SI4112-BT fits RF front ends, wireless transceivers, local-oscillator generation, modulation and demodulation chains, and communication equipment requiring a programmable RF reference. Integrated VCOs are particularly useful when board area and external frequency-generation complexity are priorities, although loop-filter, reference, and RF-layout requirements still need careful validation. For a new layout, preserve the 24-TSSOP footprint and verify every pin function against the applicable datasheet revision. Do not infer programming, charge-pump, reference, or supply connections from the family description alone; the supplied evidence confirms the device identity and broad frequency-synthesizer role, but not a complete electrical pin map. Validate RF trace impedance, keep the synthesizer reference path short, and test tuning and lock behavior across the intended channel plan.

Angebot Auf Lager
SI4112-D-GT - 1 GHz Dual-Band RF Synthesizer | Skyworks
SI4112-D-GT

SI4112-D-GT - 1 GHz Dual-Band RF Synthesizer | Skyworks

Skyworks SI4112-D-GT is a 1 GHz dual-band frequency-synthesizer IC with integrated VCOs, an IF output, and a 24-pin TSSOP package measuring 0.173 inch wide by 4.40 mm. The verified distributor listing identifies it as a PLL RF synthesizer for wireless communications, while the manufacturer describes it as a low-noise RF frequency-synthesis solution for price-sensitive, low-power personal wireless systems. A frequency synthesizer is a phase-locked-loop timing and RF component that locks a voltage-controlled oscillator to a stable reference frequency. The SI4112 family integrates the VCO circuitry and associated RF functions, reducing the need for external VCOs, varactor diodes, and passive networks. The manufacturer specifically identifies dual-band and IF synthesis as useful functions for wireless personal-communications equipment. The verified product data establishes a maximum listed frequency of 1 GHz and a single output channel. It also identifies a 24-TSSOP surface-mount package with a 0.173-inch body width and 4.40 mm overall width. Skyworks states that the integration can reduce external passive-component count, eliminate external VCOs and varactor diodes, and improve power efficiency compared with less-integrated implementations. This device belongs to the RF synthesizer hierarchy: RF frequency synthesizer → PLL → clock and timing IC → integrated circuit. Its integrated VCO architecture makes it relevant to compact wireless receivers and transmitters where board area, external component count, and power efficiency are important. The provided sources describe the part for wireless personal communications rather than high-end test equipment or precision instrumentation. Typical uses include RF down-conversion and up-conversion systems, wireless communication transceivers, and compact RF signal chains requiring programmable frequency generation. The IF output allows the synthesized signal to be used as an intermediate-frequency source in a receiver or transmitter architecture. The available verified data does not establish exact operating voltage, tuning range, phase-noise values, output power, temperature limits, or pin-level electrical limits. Designers should verify the complete manufacturer datasheet before layout or RF matching. The 24-pin TSSOP footprint requires careful high-frequency routing, controlled ground return paths, and decoupling close to the device pins. Because this is a frequency-sensitive RF component, component tolerances, reference-frequency stability, loop-filter implementation, and output matching can materially affect system performance. This page consolidates verified distributor identity, package information, manufacturer application context, pricing fields marked as data-needed, and replacement-search limitations for SI4112-D-GT. It does not invent undocumented electrical ratings or treat generic cross-reference search results as verified drop-in equivalents.

Angebot Auf Lager
SI4113-BT - 1.8 GHz Dual-Band RF Synthesizer | Silicon Labs
SI4113-BT

SI4113-BT - 1.8 GHz Dual-Band RF Synthesizer | Silicon Labs

The Silicon Labs SI4113-BT is a 1.8 GHz dual-band RF frequency-synthesizer IC with integrated VCOs and RF outputs, supplied in a 24-pin TSSOP package. It operates from a 2.7 V to 3.6 V supply, provides programmable power-down modes, and draws 18 mA typical supply current while offering 1 µA standby current. The verified listing identifies the device as a frequency synthesizer with a 1:1 input-to-output ratio. A frequency synthesizer is a phase-locked-loop building block that derives or generates stable RF carrier signals from a reference frequency. In the broader semiconductor hierarchy, a frequency synthesizer is a clock-and-timing IC, a PLL-based RF synthesizer, and ultimately a semiconductor used to control wireless transmitters and receivers. The SI4113-BT integrates VCOs, loop filters, and related RF synthesis functions to reduce the external-component count required for wireless communications designs. Key verified features include integrated VCOs and loop filters, operation at 3.6 V, a maximum operating temperature of +85 °C, and a 24-TSSOP package measuring 0.173 inches, or 4.40 mm, in width. The verified distributor description identifies the part as an RF synthesizer with RF1/RF2 outputs, while another source describes a dual-band architecture and harmonic suppression of -26 dBc. These features suit RF signal-chain designs where local frequency generation, channel selection, and compact implementation are important. The SI4113-BT is intended for wireless communications equipment using RF1 and RF2 synthesis paths. Its dual-band structure can support systems requiring more than one RF output or related modulation and frequency-generation functions. Because RF synthesizers are sensitive to loop stability, reference noise, supply variation, layout coupling, and unwanted harmonics, the power supply, reference path, decoupling network, and output transmission lines require careful PCB implementation. A primary design consideration is preserving the specified 2.7 V to 3.6 V supply range and providing clean decoupling close to the power pins. Designers should also verify the selected reference frequency, divider settings, loop-filter configuration, output frequency range, and RF trace impedance against the complete manufacturer datasheet before layout release. Use controlled-impedance routing and a compact RF return path to minimize unintended reflections and coupling. This page combines verified distributor specifications, sourcing information, available cross-reference results, and practical RF design guidance. It distinguishes confirmed SI4113-BT data from specifications that require datasheet confirmation, helping engineers evaluate the synthesizer before requesting procurement support.

Angebot Auf Lager
SI4113-D-GM - 1.8 GHz Dual-Band RF Synthesizer | Skyworks
SI4113-D-GM

SI4113-D-GM - 1.8 GHz Dual-Band RF Synthesizer | Skyworks

The Skyworks Solutions SI4113-D-GM is a dual-band RF frequency-synthesizer IC with integrated VCOs for wireless communications. The supplied distributor data identifies a maximum frequency of 1.8 GHz, a 2.7 V to 3.6 V supply range, 18 mA to 27 mA current, RF1 and RF2 outputs, and a 28-pin VFQFN package with an exposed pad. It supports IF and dual-band low-noise RF frequency synthesis while reducing external passive-component requirements. A frequency synthesizer is a timing and RF signal-generation IC that combines frequency reference, phase detection, feedback-divider, voltage-controlled oscillator, and loop-filter functions into a controllable frequency-generation system. In the broader hierarchy, it belongs to clock and timing ICs, RF synthesizers, RF signal-generation devices, and wireless-communications semiconductors. Integrated VCOs reduce the need for discrete varactor diodes, external oscillators, and separate passive matching networks. The SI4113-D-GM is reported to operate across 900 MHz to 1800 MHz in one band and 750 MHz to 1500 MHz in the other. Its output power spans -14 dBm to +1 dBm, while harmonic performance is listed from -26 dBc to -20 dBc. These values make it relevant to compact wireless transmitters and receivers operating in cellular, personal-radio, and other RF communication bands. Its integrated synthesis architecture supports RF1 and RF2 outputs and is intended to isolate external interference in silicon. The 2.7 V to 3.6 V operating supply aligns with low-voltage portable RF systems. Reported current of 18 mA to 27 mA gives engineers a concrete starting point for power-budget analysis, although exact current depends on operating mode and output configuration. Typical uses include dual-band transceivers, wireless personal-communications equipment, IF synthesizers, and RF up-conversion or down-conversion chains. The component can simplify boards by consolidating frequency-generation functions, but RF layout still requires controlled impedance, short return paths, suitable grounding, and separation between sensitive synthesis nodes and radiating paths. Designers should verify the complete pinout, loop-filter guidance, reference requirements, and output-matching network in the manufacturer datasheet before layout. Supply decoupling should be placed close to the device, and the exposed pad needs the package-specific thermal and assembly treatment documented by Skyworks Solutions. The major engineering trade-off is board simplification versus careful RF routing and application-specific filter tuning. This page consolidates the verified manufacturer and distributor facts, distinguishes confirmed specifications from missing datasheet data, and provides practical replacement and selection guidance beyond a raw catalog listing. All prices and availability references use the verified retrieval date of 2026-10-22.

Angebot Auf Lager
SI4113-D-GT - 1.8 GHz Dual-Band RF Synthesizer | Skyworks
SI4113-D-GT

SI4113-D-GT - 1.8 GHz Dual-Band RF Synthesizer | Skyworks

Skyworks Solutions SI4113-D-GT is a dual-band RF frequency synthesizer IC with integrated VCOs, an operating frequency listed as 1.8 GHz, RF1 and RF2 outputs, and a 24-pin TSSOP package measuring 4.40 mm wide. It is a phase-locked-loop timing device intended for dual-band, low-noise wireless frequency synthesis. According to Skyworks product data, the SI4113 family reduces external passive-component count and eliminates external VCOs and varactor diodes. A frequency synthesizer generates or translates a stable, programmable reference into an RF carrier used by wireless transmitters, receivers, and related communication equipment. The SI4113-D-GT combines a phase-locked loop with integrated voltage-controlled oscillators and RF output circuitry. Its dual-band architecture supports wireless personal-communications designs where compactness, low power, and reduced external component count are important. The verified distributor information identifies RF1/RF2 outputs, a 1.8 GHz operating frequency, one synthesizer circuit, and a 24-pin TSSOP package. Skyworks states that the device targets price-sensitive, low-power, high-performance personal wireless communications by reducing passive components, eliminating discrete VCOs and varactor diodes, improving power efficiency, and isolating external interference in silicon. These features make it useful in RF modulation and demodulation chains requiring local frequency generation. The part also appears in distributor listings under both Skyworks Solutions and legacy Silicon Laboratories naming. This distinction matters when searching for documentation or inventory: the manufacturer history is reflected in the search results, while the current distributor records identify Skyworks Solutions. The exact RF output power, tuning range, phase-noise figures, supply voltage, and control-interface details were not included in the supplied records and require confirmation from the manufacturer datasheet. Typical design uses include dual-band wireless transceivers, RF modulators, RF demodulators, IF-generation stages, compact communications modules, and low-power RF front ends. In a transmitter, the synthesizer can create the carrier or intermediate frequency while the PLL locks its output to a stable reference. Designers should preserve controlled impedance on RF traces, provide suitable grounding and decoupling, and verify loop-filter settings against the intended channel plan. The main design tradeoff is integration versus specialized flexibility: integrated VCOs simplify the BOM and reduce external interference pickup, but RF performance, output power, and frequency limits must be confirmed against the exact system requirements. The verified source record does not provide a manufacturer datasheet URL, complete electrical limits, or a full pinout, so those details remain explicitly unconfirmed rather than inferred. This page combines distributor specifications, package information, source links, application guidance, and a strict validation framework so engineers can distinguish verified facts from parameters that must be checked in the manufacturer datasheet.

Angebot Auf Lager
SI4114G-BM RF Synthesizer | Silicon Labs
SI4114G-BM

SI4114G-BM RF Synthesizer | Silicon Labs

The Silicon Labs SI4114G-BM is an RF frequency synthesizer with integrated voltage-controlled oscillators for direct-conversion E-GSM 900, DCS 1800, PCS 1900, and GPRS wireless systems. The verified source identifies a 28-QFN package, while operating frequency, phase-noise, tuning-range, supply-voltage, and electrical-limit details remain unavailable in the supplied records. The part is positioned as a legacy RF synthesizer rather than a current general-purpose clock generator. An RF frequency synthesizer generates a controllable, stable carrier or local-oscillator signal for wireless transmitters and receivers. In a direct-conversion receiver, synthesizer output can be mixed directly with the received RF signal, while in a transmitter it establishes the carrier frequency. Integrating the VCO with the synthesizer reduces the number of separate RF signal-path components and supports compact multiband radio designs. The SI4114G family was developed for multiband GSM and GPRS equipment. Silicon Labs states that it performs multiband RF synthesis for E-GSM 900, DCS 1800, and PCS 1900 applications. Its cited fast transient response makes it particularly relevant to GPRS multislot systems, where channel switching and settling performance influence receiver or transmitter readiness. The SI4114G-BM is identified as an RF synthesizer in a 28-QFN package. The supplied distributor results do not expose a complete current price table, operating-temperature range, pin map, output-power specification, tuning range, or phase-noise data. Those values must be taken from the manufacturer datasheet and verified against the exact ordering code before layout or production use. Typical legacy uses include GSM handset receivers and transmitters, multislot GPRS terminals, direct-conversion radios, and RF test equipment. The exact RF band, channel spacing, reference frequency, loop bandwidth, and board environment must be checked against the manufacturer document before selecting the device. For a new design, evaluate the modern Si41xx-D-GM family named by Mouser as the recommended replacement family rather than assuming that every Si41xx device is pin-compatible. Migration should be treated as a redesign unless the replacement's package, pinout, RF band plan, control interface, and timing behavior have all been verified. This page consolidates the supplied manufacturer-related PDF record, distributor lifecycle guidance, and cross-reference findings. It separates verified facts from missing electrical data rather than estimating unstated synthesizer parameters or presenting a non-pin-compatible modern family as a drop-in replacement.

Angebot Auf Lager
SI4115G-BM PLL Clock Synthesizer | Silicon Labs
SI4115G-BM

SI4115G-BM PLL Clock Synthesizer | Silicon Labs

The Silicon Labs SI4115G-BM is a frequency synthesizer and phase-locked-loop clock integrated circuit associated with GSM/GPRS and external-synthesis applications. The verified product data confirms its clock-generator and frequency-synthesizer classification, but it does not provide a verified frequency range, supply voltage, output configuration, pin count, or package dimensions. Accordingly, those technical values remain data-needed rather than being inferred. The component is associated with the MLP-28 package in the available cross-reference data. A phase-locked loop, or PLL, is a frequency-control circuit in which an internal oscillator is phase and frequency aligned to a reference input. In clock-generator and frequency-synthesizer ICs, this architecture supports clock distribution, frequency multiplication or division, and generation of timing signals required by communications and digital systems. The SI4115G-BM belongs to the broader Clock & Timing > Clock Generators, PLL, and Frequency Synthesizers category. The verified distributor and manufacturer listings identify SI4115G-BM as a clock and timing IC associated with frequency synthesis and legacy wireless applications. The listing snippets specifically reference GSM/GPRS synthesis and external synthesis, providing application context without supplying enough verified electrical data to specify operating conditions. Users should obtain the original manufacturer datasheet before making a board-level substitution or timing-design decision. Typical design uses for this product family include RF and baseband clock generation, wireless transceiver timing, communications infrastructure, and embedded systems requiring a stable synthesized clock. However, exact suitability depends on required reference frequency, output frequency, channel spacing, loop bandwidth, supply voltage, jitter, and package-level pin compatibility. Those values must be confirmed from the manufacturer documentation. A legacy replacement should not be treated as drop-in solely because another PLL has a similar function. The verified search results mention Si4126-F-GM as a recommended replacement, but they do not establish that it shares the MLP-28 footprint, pinout, frequency range, or electrical parameters with SI4115G-BM. PCB migration therefore requires formal comparison of package drawings, pin names, supply rails, and timing specifications. This page combines the available verified distributor listings, package information, lifecycle concerns, and replacement guidance with explicit uncertainty markers. It is intended to support component identification and sourcing research rather than substitute for the original manufacturer datasheet or a complete engineering cross-reference.

Angebot Auf Lager
SI4122-BT - 1.5 GHz Dual-Band RF Synthesizer | Silicon Labs
SI4122-BT

SI4122-BT - 1.5 GHz Dual-Band RF Synthesizer | Silicon Labs

The Silicon Labs SI4122-BT is a 1.5 GHz dual-band RF frequency-synthesizer IC with integrated VCOs, loop filters, varactors, and resonators, supplied in a 24-pin TSSOP package. It operates from a 2.7 V to 3.6 V supply, features programmable power-down modes, and requires only two external components according to the available manufacturer-related data. A frequency synthesizer is a clock-and-timing IC that generates a stable output frequency from a reference signal. This synthesizer supports wireless-communication RF signal chains, where programmable frequency generation is used for local oscillators, transceivers, and related RF functions. Its 1.5 GHz headline specification identifies the supported synthesis range in the distributor data, while the dual-band architecture supports wireless RF signal-generation requirements. The SI4122-BT is identified as a frequency-synthesizer IC with a 1:2 input-to-output ratio in the available distributor records. The available data also reports 18 mA typical supply current, 1 µA standby current, 3.6 V operation, and integrated VCO, loop-filter, varactor, and resonator functions. These features are useful where designers want to minimize external RF support components and simplify the synthesizer implementation. The 24-TSSOP package has a 0.173 inch, or 4.40 mm, width according to the DigiKey result. It is a surface-mount package, and the available distributor data identifies a 24-pin TSSOP with SMD/SMT mounting. Exact pin names, operating-temperature limits, phase-noise figures, frequency ranges by band, and full electrical limits were not supplied in the verified data and are therefore not inferred here. Typical applications include wireless-communication transmitters and receivers, RF transceiver local-oscillator paths, dual-band RF signal generation, and embedded RF systems requiring a programmable synthesizer. Designers should confirm the complete pinout, reference requirements, loop-filter configuration, and band-specific operating limits against the manufacturer datasheet before layout or firmware release. For implementation, preserve the supplied 24-pin TSSOP footprint and validate the reference and RF routing according to the manufacturer’s layout guidance. The integrated resonator and VCO functions can reduce external component count, but RF layout, grounding, decoupling, and keep-out requirements remain critical. This page consolidates verified distributor specifications, sourcing links, packaging information, and design considerations while clearly identifying parameters that still require datasheet confirmation.

Angebot Auf Lager
SI4123-BM - 1.8GHz Dual-Band RF Synthesizer, 28-QFN | Silicon Labs
SI4123-BM

SI4123-BM - 1.8GHz Dual-Band RF Synthesizer, 28-QFN | Silicon Labs

The Silicon Labs SI4123-BM is a monolithic dual-band RF frequency synthesizer with integrated VCOs, loop filters, varactors, and resonators, operating up to 1.8 GHz in a 28-pin QFN (5x5 mm) exposed-pad package. It accepts a 2 MHz to 26 MHz crystal reference and delivers programmable RF output through a 1:2 input-to-output divider chain, drawing 18 mA typical supply current from a 2.7V to 3.6V single rail. A frequency synthesizer is a closed-loop building block inside a wireless transceiver that generates a stable, programmable local-oscillator (LO) signal by phase-locking a voltage-controlled oscillator to a low-frequency crystal reference. Synthesizers sit within the signal-chain hierarchy of mixer -> LNA -> IF/baseband; they belong to the broader category of clock and timing ICs alongside PLLs, VCOs, and clock generators. Integrating the VCO, varactor, loop filter, and resonator on-die eliminates dozens of external components that a discrete PLL+VCO implementation would require. Key features of the SI4123-BM include a dual-band architecture supporting both low-IF and high-band RF outputs from a single IC, integrated loop filter and resonator for minimal external BOM, 1 microamp standby current with programmable power-down modes, and low phase noise suitable for GSM/cellular local-oscillator roles. The 28-VFQFN exposed-pad package provides a low thermal-resistance path to PCB copper, important when the part is biased continuously in a radio that does not sleep deeply. Architecturally, the Si4123 family uses Silicon Labs' proven bipolar RF process and a fractional-N topology with multi-modulus prescalers. The integrated VCOs cover the two RF bands used by legacy 2G/ISM radios; output frequency, reference division, and charge-pump current are all programmed through a simple three-wire serial interface. The combination of integrated resonators and on-die loop filter means the design needs only a crystal and a couple of bypass caps to produce a clean LO. Typical applications include GSM/GPRS handset local-oscillator generation, ISM-band 433/868/915 MHz radios, dual-band cordless phone transceivers, and wireless metering links. The 1.8 GHz ceiling also covers early Wi-Fi and proprietary 2.4 GHz sub-harmonic upconversion stages when the output is followed by a doubler. When designing with the SI4123-BM, ensure the exposed pad is soldered to a continuous ground pour with multiple thermal vias; a floating EP will cause VCO pulling and degraded phase noise. The 1 microamp standby current only applies when the serial interface holds the part in its deepest power-down state, so the host MCU must drive the appropriate register sequence to actually achieve it. This page consolidates distributor pricing, drop-in package-compatible alternatives, and practical design notes that are not presented together in the manufacturer datasheet.

USD $4,35 Auf Lager
SI4123-BT - 1.8 GHz Dual-Band RF Synthesizer | Silicon Labs
SI4123-BT

SI4123-BT - 1.8 GHz Dual-Band RF Synthesizer | Silicon Labs

The Silicon Labs SI4123-BT is a 1.8 GHz dual-band RF frequency-synthesizer IC with integrated VCOs, loop filters, varactors, and resonators for wireless communications. It operates from a 2.7 V to 3.6 V supply, supports a 24-pin TSSOP package, and requires only two external components according to the available manufacturer-related data. The device is designed for RF signal generation, frequency control, and wireless communication systems. A frequency synthesizer generates or controls a stable reference-related output by combining a phase-locked loop, voltage-controlled oscillator, and frequency-setting network. In wireless equipment, this type of RF synthesizer establishes the local oscillator used by transmit and receive signal chains. The SI4123-BT integrates multiple RF oscillator functions into one IC, reducing board area and external-component count while keeping the RF frequency-generation function close to the system antenna and transceiver circuitry. Key verified features include integrated VCOs, integrated loop filters, integrated varactors, integrated resonators, programmable power-down modes, low phase noise, a 1 uA standby current, and approximately 18 mA typical supply current. The available data also identifies 3.6 V operation and a 24-pin TSSOP package. Exact tuning range, phase-noise curves, control-interface details, temperature limits, and output-power specifications are not provided in the verified search data and must be confirmed from the manufacturer datasheet before design release. The SI4123-BT is suited to wireless communication modules, RF transceivers, frequency-generation circuits, industrial RF equipment, and compact embedded radio systems. Its integrated architecture can help reduce component count in designs where PCB area is constrained. The 24-TSSOP footprint is also convenient for conventional surface-mount assembly, although RF layout remains critical because high-frequency interconnects and supply-return paths can affect oscillator performance. The primary design consideration is to verify the complete electrical and timing envelope against the current Silicon Labs datasheet. Place the device according to the recommended decoupling and grounding arrangement, keep the RF output path short, and avoid routing sensitive oscillator and feedback nets beneath or beside unrelated switching nodes. Confirm the required external resistor, capacitor, and reference values before manufacturing; the verified data does not provide those values. This page summarizes verified distributor specifications, package information, and practical design considerations for the SI4123-BT. It does not invent missing electrical parameters, pricing, pin functions, lifecycle claims, or drop-in replacements that cannot be verified from the supplied sources.

Angebot Auf Lager
SI4123-D-GT - 1.8 GHz Dual-Band RF Synthesizer | Skyworks Solutions
SI4123-D-GT

SI4123-D-GT - 1.8 GHz Dual-Band RF Synthesizer | Skyworks Solutions

Skyworks Solutions SI4123-D-GT is a dual-band RF frequency-synthesizer IC with integrated VCOs, designed for low-noise IF and dual-band wireless communications. The verified distributor data identifies a 1.8 GHz maximum frequency and a 24-pin TSSOP package measuring 0.173 inches wide by 4.40 mm, while the manufacturer describes the device as targeting price-sensitive, low-power, high-performance personal wireless communications. An RF frequency synthesizer is a phase-locked-loop device that generates stable, programmable RF or IF carrier signals for wireless transmitters, receivers, and related communication equipment. The SI4123-D-GT belongs to the RF synthesizer family and integrates two VCOs, allowing dual-band operation without requiring external VCOs or varactor diodes. Its intended role is local oscillator or carrier generation in systems requiring accurate frequency selection and low-noise RF performance. Verified product information lists a 900 MHz to 1.8 GHz primary frequency range and a 750 MHz to 1.5 GHz secondary range, an output-power range of -14 dBm to +1 dBm, and harmonic levels from -26 dBc to -20 dBc. The specified supply-voltage range is 2.7 V to 3.6 V, with current consumption from 18 mA to 27 mA. These values position the device for compact, low-power wireless products operating near direct-conversion or low-IF architectures. The integrated VCO approach reduces external passive-component count compared with discrete oscillator implementations. It can also simplify RF board layout by eliminating external varactor tuning networks, although loop-filter selection, reference routing, supply decoupling, output matching, and phase-noise requirements remain essential to achieve predictable RF performance. Typical applications include wireless personal communications, dual-band cellular equipment, RF transceivers, IF-generating receiver paths, and compact RF communication modules. The device is most appropriate when the system operates from a 2.7 V to 3.6 V supply and needs programmable synthesis across either of the verified frequency bands. Designers should verify the manufacturer’s reference circuit and pin-specific programming requirements before layout. Keep the reference, synthesizer, and RF output paths short, provide the required bypass capacitors at the supply pins, and preserve controlled impedance routing for high-frequency outputs. Because exact pin names, register behavior, loop-filter values, and absolute phase-noise data were not supplied in the verified data, those details must be confirmed from the manufacturer datasheet. This page consolidates the verified manufacturer description, distributor package information, frequency, power, supply, and current data into an application-oriented engineering summary. It also distinguishes true drop-in alternatives from functional RF substitutes, preventing redesign-level parts from being presented as pin-compatible replacements.

Angebot Auf Lager
SI4126-BM - 2.3 GHz WLAN RF/IF Synthesizer | Silicon Labs
SI4126-BM

SI4126-BM - 2.3 GHz WLAN RF/IF Synthesizer | Silicon Labs

The Silicon Labs SI4126-BM is an ISM-band frequency-synthesizer integrated circuit designed for WLAN RF2 and IF synthesis, with a reported maximum operating frequency of 2.3 GHz and a 28-pin MLP package. The supplied source identifies it as an IC synthesizer for WLAN RF2/IF applications, while the family description identifies an RF synthesizer with integrated VCOs for wireless communications. Its role is to generate programmable RF or IF clock signals used by wireless receivers, transmitters, and frequency-conversion stages. A frequency synthesizer is a clock-and-timing IC that derives or generates a stable output frequency from a reference source. The Si4126 family combines RF synthesis functions with integrated voltage-controlled oscillators, loop filtering, reference and VCO dividers, and phase detectors, enabling wireless communication systems to produce accurately programmed local-oscillator signals. Such devices are part of the broader semiconductor hierarchy: RF synthesizer → frequency synthesizer → clock and timing IC → integrated circuit. The SI4126-BM is associated with wireless communications and WLAN RF2/IF use, making programmable frequency generation more important than a fixed clock output. The verified source also describes the family as supporting divider and power-down settings through a three-wire serial interface. This interface allows an embedded controller to configure operating conditions and can simplify integration into systems that require multiple RF or IF frequencies. The available data does not provide complete electrical ratings, tuning range, phase-noise values, temperature limits, or control-voltage levels. Typical implementation uses the synthesizer as the local oscillator for RF upconversion, RF downconversion, or IF signal generation. The generated signal supports channel selection in WLAN equipment and other wireless communication systems. Compared with a fixed-frequency oscillator, a programmable synthesizer permits different operating channels to be selected by changing divider, divider, or frequency-control settings through the serial interface, subject to the detailed register and electrical requirements in the manufacturer documentation. Engineers should preserve the manufacturer’s recommended reference, loop-filter, grounding, decoupling, and RF-routing layout. The 28-pin surface-mount package requires careful thermal and electrical implementation, particularly when the synthesizer drives downstream mixers or converters. Before layout release, obtain the complete manufacturer datasheet and verify the exact Si4126-BM variant, package drawing, exposed-pad requirements, reference frequency, operating modes, and production lifecycle status. This page consolidates the verified distributor descriptions, package information, and source links for SI4126-BM and distinguishes confirmed facts from parameters that remain unavailable in the supplied data. It is intended to support initial sourcing and engineering review, not to replace manufacturer validation.

Angebot Auf Lager
SI4126-F-GM - 2.3 GHz RF Synthesizer | Skyworks
SI4126-F-GM

SI4126-F-GM - 2.3 GHz RF Synthesizer | Skyworks

The Skyworks Solutions SI4126-F-GM is an ISM-band RF frequency-synthesizer integrated circuit with a 2.3 GHz RF output, one synthesizer channel, a 2 MHz to 50 MHz input range, and a 28-pin VQFN exposed-pad package. Its integrated VCO, loop filter, varactors, and resonators minimize external component requirements for wireless-communication designs. A frequency synthesizer is a clock-and-timing building block that uses a phase-locked loop to create stable, programmable radio-frequency output signals. The broader hierarchy is RF synthesizer → frequency synthesizer → PLL/clock-generation IC → timing and RF integrated circuit. By generating an RF carrier or intermediate-frequency signal, this class of device supports wireless transmitters, receivers, modems, and ISM-band radio equipment. The verified distributor data identifies a maximum RF output of 2.3 GHz, one output channel, a 2 MHz to 50 MHz input range, and a 28-pin QFN exposed-pad package. Additional manufacturer descriptions state that the SI4126 family integrates VCOs, loop filters, varactors, and resonators, requires minimal external components, provides low phase noise, draws 5 uA in standby, and typically consumes 25.7 mA from the supply. These characteristics can shorten RF board development by reducing discrete resonator and varactor assembly. The device is intended for wireless communications in the industrial, scientific, and medical radio bands. A system designer can use its programmable synthesis function to establish an RF carrier for a transceiver chain, subject to the frequency plan, loop settings, reference requirements, and regulatory limits defined in the manufacturer datasheet. Its integrated frequency-setting elements also simplify BOM management compared with a discrete VCO implementation, although fixed external filtering, matching, and regulatory testing remain necessary. PCB layout is a central design consideration because a phase-locked-loop synthesizer contains a high-frequency oscillator and sensitive feedback node. The exposed pad must be connected to the required ground plane, supply and return paths must be short, and RF output routing should use controlled-impedance geometry where applicable. The datasheet must be consulted for the complete recommended decoupling network, loop-filter values, reference sensitivity, package land pattern, exposed-pad connection, and operating limits. This page consolidates the verified distributor descriptions, package information, sourcing links, and practical RF layout considerations. It intentionally avoids inventing missing electrical limits, pricing, pin names, or alternative parts; those details remain marked as data needed until confirmed from the manufacturer datasheet or a verified cross-reference. The SI4126-F-GM is best evaluated when a wireless design benefits from a highly integrated ISM RF synthesizer and a compact exposed-pad package. Final design release requires reviewing the manufacturer datasheet for absolute maximum ratings, tuning range, lock-time behavior, phase-noise profile, control interfaces, recommended PCB land pattern, and regulatory implementation constraints.

Angebot Auf Lager
SI4133-BT - 1.8 GHz Dual-Band RF Synthesizer | Silicon Labs
SI4133-BT

SI4133-BT - 1.8 GHz Dual-Band RF Synthesizer | Silicon Labs

The Silicon Labs SI4133-BT is a frequency-synthesizer IC for wireless communications that operates up to 1.8 GHz from a 2.7 V to 3.6 V supply in a 24-pin TSSOP package. It integrates three VCOs, loop filters, reference and VCO dividers, and phase detectors, while the verified sources identify a dual-band RF synthesis role and an external tank-inductance requirement. Typical supply current is 18 mA, and standby current is 1 uA. A frequency synthesizer is a clock-and-timing or RF integrated circuit that locks an output oscillator to a stable reference frequency. By dividing the reference, comparing phases, and driving a voltage-controlled oscillator through an integrated loop filter, the SI4133 generates programmable wireless-communications carrier frequencies. This synthesis function places it within the hierarchy PLL frequency synthesizer, clock and timing IC, RF signal generator, and semiconductor. The SI4133-BT requires only two external components according to the verified datasheet excerpt because its VCOs, loop filters, varactors, and resonators are integrated. It offers low phase noise, programmable power-down modes, and a self-tuning algorithm that compensates for tank-inductance variation after startup or a programmed frequency change. Those features simplify RF design while preserving the sensitivity expected in wireless links. Silicon Labs specifies that package inductance must be considered because total VCO tank inductance is in the low-nanohenry range. The 24-TSSOP outline is only 0.173 inch, or 4.40 mm, wide, and surface mounting makes it practical for compact radio designs. The verified operating-temperature listing spans -40 C to +85 C, while the provided evidence does not establish the complete set of frequency bands for this exact orderable MPN. Typical uses include RF local-oscillator generation, dual-band wireless receivers and transmitters, intermediate-frequency synthesis, and compact RF communications modules. In these systems, the synthesizer converts a reference oscillator into a programmable RF carrier used by mixers, modulators, or demodulators. Low phase noise supports signal integrity, while power-down current helps preserve battery life between active periods. The primary design consideration is reference and power-layout discipline. Keep the reference path short, use recommended decoupling at the supply pins, and follow the manufacturer's external-inductor and grounding guidance. PCB parasitics can alter the low-inductance VCO tank, so placement and trace geometry should be treated as part of the RF network rather than as purely electrical interconnect. This page consolidates the verified distributor specifications, a manufacturer-hosted datasheet link, family architecture, and engineering-focused usage guidance. Pricing remains quote-dependent because the supplied web results advertise live distributor purchasing without numeric prices, and it does not present five verified drop-in replacements.

Angebot Auf Lager
SI4133-D-GM - Triple-VCO 1.72GHz RF Synthesizer | Silicon Labs
SI4133-D-GM

SI4133-D-GM - Triple-VCO 1.72GHz RF Synthesizer | Silicon Labs

The Silicon Laboratories SI4133-D-GM is a triple-VCO RF frequency synthesizer IC with IF and dual-band synthesis, a 2 MHz to 26 MHz input range, and operation up to 1.72 GHz in a 28-pin QFN exposed-pad package. It integrates three VCOs, loop filters, reference and VCO dividers, and phase detectors to reduce external RF components. An RF frequency synthesizer is a phase-locked-loop timing and RF component that generates a programmable output from a stable reference. The Si4133 combines IF synthesis with dual-band RF synthesis, placing it in the RF synthesizer, PLL, clock-generation, and wireless-communications equipment hierarchy. Its integrated VCOs eliminate separate external VCO and varactor assemblies in suitable designs. The device supports three synthesizer circuits, programmable power-down modes, low phase noise, and a 1 uA standby current. According to the manufacturer product information, it targets price-sensitive, low-power, high-performance personal wireless communications while reducing passive-component count and improving power efficiency. LCSC lists a starting price of $3.3339 as of 2026-10-22. The listed operating supply range is 2.7 V to 3.6 V. The manufacturer describes low-noise IF and dual-band RF synthesis, while distributor data identifies the output capability as up to 1.72 GHz. The exposed pad supports heat transfer to the PCB, but loop-filter values, VCO tuning range details, phase-noise plots, and complete timing specifications must be taken from the manufacturer datasheet rather than inferred from distributor summaries. Typical uses include wireless personal-communications equipment, IF/RF up-conversion systems, dual-band transmitters, low-power radio designs, and compact RF modules. System designers should preserve clean reference routing, provide compliant loop filtering, decouple the supply, and connect the exposed pad to the recommended thermal and ground-plane layout. A design tradeoff is integration versus program flexibility: integrating three VCOs, dividers, filters, and detectors simplifies RF assembly, but the planner must still account for lock-time, spur, tuning-range, reference-noise, and thermal requirements for the intended band. Verify all band-specific constraints against the official datasheet. This page consolidates manufacturer and distributor information, verified source links, application guidance, and replacement screening into an engineering-focused summary. Because the supplied data does not establish several detailed electrical limits or lifecycle classifications, those fields remain explicitly marked rather than guessed.

USD $3,33 Auf Lager