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SI4136-BM - 2.5 GHz RF Synthesizer | Silicon Labs | Wireless

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2.7 V to 3.6 V Vdss 28-VFQFN exposed-pad surface-mount package Package 2.5 GHz Speed
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SI4136-BM Übersicht

Silicon Labs SI4136-BM is an integrated RF frequency synthesizer IC with a maximum operating frequency of 2.5 GHz, a 2.7 V to 3.6 V supply range, and a 28-VFQFN exposed-pad surface-mount package. Designed for wireless communications, the device combines three VCOs, loop filters, reference and VCO dividers, and phase detectors in one monolithic component. Its programmable divider and powerdown settings are controlled through a three-wire serial interface, reducing external RF infrastructure while supporting IF and RF synthesis.

A frequency synthesizer is a clock-and-timing device that generates, multiplies, divides, and locks a reference signal to a selected output frequency. The SI4136 belongs to the PLL frequency-synthesizer and RF-synthesizer hierarchy, where a phase-locked loop steers an oscillator to maintain a controlled relationship between a stable reference and an RF output. This makes the device relevant to wireless transceivers, RF modems, frequency-agile communications equipment, and embedded RF systems rather than ordinary low-frequency clock distribution.

The SI4136-BM combines three integrated VCOs with programmable dividers and phase detectors. This architecture allows the synthesizer to cover multiple RF conversion paths while centralizing frequency planning in a serial-programmable device. The verified component data identifies PLL operation, crystal input, clock output, one circuit, and support for divider and multiplier functions. The three-wire serial programming interface is important because it reduces the number of discrete control connections required by the system.

The SI4136-BM is specified for a maximum frequency of 2.5 GHz and an operating supply range of 2.7 V to 3.6 V, making it suitable for compact RF systems whose supply architecture is already designed around low-voltage semiconductor rails. Its exposed pad provides a thermal and electrical connection to the PCB, but the required thermal-management details and exact pad-layout guidance must be taken from the manufacturer datasheet before layout release. The 28-VFQFN footprint is a surface-mount package intended for manufacturing reflow and automated assembly.

Typical applications include wireless communication modules, RF front-end supporting ICs, IF/RF conversion chains, and industrial or consumer products requiring programmable frequency generation. In these systems, the synthesizer establishes a stable RF or intermediate-frequency reference while the surrounding transceiver handles signal mixing, modulation, filtering, and power amplification. Integration can reduce board area and assembly complexity, although system designers must still verify reference-noise requirements, loop-filter settings, startup behavior, and regulatory output requirements.

Designers should preserve the exposed-pad copper connection, place supporting components according to the manufacturer’s reference layout, and keep sensitive RF and reference traces away from noisy switching nodes. Because the verified data does not provide the complete pin-level electrical table, pin names, oscillator tuning range, reference frequency, divider ratios, output characteristics, or recommended loop-filter values, those parameters require confirmation in the official datasheet. This page combines the verified product identity, package, supply, frequency, and sourcing information with practical design guidance without filling unavailable values with assumptions.

This product-data summary distinguishes SI4136-BM from ordinary fixed-frequency oscillators by emphasizing its integrated VCOs, dividers, phase detectors, loop filters, and serial programming. For procurement, verify current manufacturer identity and lifecycle status with an authorized distributor because search results reference both Silicon Labs and Skyworks Solutions, and confirm the exact package, temperature range, and electrical configuration against the latest manufacturer documentation.

Drop-in-Alternativen für SI4136-BM – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.

Varianten dieser Serie

Modelle derselben Serie, die drop-in-kompatibel sind mit SI4136-BM (gleiche Bauform und Footprint) – abweichend in Package.

Silicon Labs
Package: 28-pin VQFN with exposed pad
Vergleichen mit SI4136-BM →

Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:

SI4136-F-BM

✅ Drop-In
📦 28-VFQFN exposed-pad
Related SI4136-F-BM listing is provided as a cross-reference candidate, but the verified data does not quantify differences in frequency, supply, pinout, or programming; compatibility remains unverified

📋 Referenzalternative (nicht im Katalog)

SI4136-F-GM

✅ Drop-In
Silicon Labs
📦 28-VFQFN exposed-pad
RF frequency synthesizer with integrated VCOs · 2.5 GHz · 2.7 V to 3.6 V · 3 · Three-wire serial interface · Divider and power-down settings · 28-pin VQFN with exposed pad · 28 pins

✓ Auf Lager

$4.75 / Stück

Datenblatt ansehen →

SI4136-F-BT

✅ Drop-In
📦 28-VFQFN exposed-pad
SI4136-F-BT appears in a related comparison result, but verified pin compatibility and parameter differences are not supplied

📋 Referenzalternative (nicht im Katalog)

SI4136-F-GMR

✅ Drop-In
📦 28-VFQFN exposed-pad
SI4136-F-GMR is a related SI4136-series listing, but the supplied data does not verify a 28-VFQFN footprint or quantify electrical equivalence

📋 Referenzalternative (nicht im Katalog)

SI4136-BMR

✅ Drop-In
📦 28-VFQFN exposed-pad
SI4136-BMR is a related manufacturer-series listing; exact package, pinout, and parameter differences are not specified in the supplied verified data

📋 Referenzalternative (nicht im Katalog)

SI4136-BM Technische Daten

Product Type RF frequency synthesizer IC
Maximum Frequency 2.5 GHz
Betriebsversorgungsspannung 2.7 V to 3.6 V
Number of Circuits 1 circuit
Gehäuse 28-VFQFN exposed-pad surface-mount package
Betriebstemperaturbereich -40°C to +85°C
PLL Yes
Input Type Crystal input
Ausgangstyp Clock output
VCO Count 3 VCOs
Serial Control Interface Three-wire serial interface
Divider and Powerdown Settings Programmable
Reference and VCO Dividers Integrated
Phase Detectors Integrated
Loop Filters Integrated
Montageart Surface mount
Tube Packaging Tube

SI4136-BM 28-vfqfn exposed-pad surface-mount package Pinbelegungsleitfaden

Pinbelegung für SI4136-BM (28-vfqfn exposed-pad surface-mount package-Gehäuse). Pin-Nummerierung, Funktionen und Anschlussdiagramme sind im Herstellerdatenblatt definiert. Entnehmen Sie diesem den genauen Footprint und Lötrichtlinien.

Pinbelegungsdiagramm für SI4136-BM im 28-vfqfn exposed-pad surface-mount package-Gehäuse

Keine detaillierten Pinbelegungsdaten verfügbar für SI4136-BM.

Siehe die Datenblatt für die vollständige Pin-Konfiguration.

Typische Anwendungen

SI4136-BM ist geeignet für 6 Anwendungs: Wireless Transceiver RF Synthesizer, RF Front-End Frequency Conversion, Programmable IF Synthesizer, Industrial RF Control System, RF Test and Measurement Instrument, Wireless Communication Module.

📡

Wireless Transceiver RF Synthesizer

SI4136-BM fits a wireless transceiver that needs programmable RF or IF conversion references up to 2.5 GHz. Its three VCOs, phase detectors, and dividers provide the core frequency-synthesis functions required when a transceiver must switch between channels or support multiple conversion paths. The three-wire serial interface allows a host controller to configure divider and powerdown settings. Designers should still validate reference-noise performance, loop stability, output drive, and regulatory requirements against the manufacturer’s complete electrical tables before release.

🌐

RF Front-End Frequency Conversion

SI4136-BM can provide a programmable local-oscillator reference for an RF front end that mixes incoming or outgoing signals into IF or processing bands. Its maximum frequency of 2.5 GHz and integrated VCO structure make it appropriate for systems whose RF architecture requires more than a fixed-frequency clock. The synthesizer must be paired with correct impedance-controlled routing, stable reference routing, and validated loop-filter or programming settings. The exposed-pad connection should follow the manufacturer’s thermal and assembly drawing.

📶

Programmable IF Synthesizer

The SI4136-BM is applicable to IF synthesis in wireless equipment where a receiver or transmitter needs a controlled intermediate-frequency reference. Integrated reference and VCO dividers, phase detectors, and loop filters provide a complete synthesis block rather than requiring separate oscillator, divider, and detector components. The verified operating range of 2.7 V to 3.6 V supports low-voltage RF system architectures. Exact IF frequency range, resolution, output power, and lock-time requirements must be confirmed from the full manufacturer datasheet.

🏭

Industrial RF Control System

SI4136-BM can support an industrial RF control system that requires a programmable reference across a changing operating condition. Its three VCOs and serial-programmable divider settings offer flexibility for systems that select different RF or IF outputs through firmware. The 2.5 GHz maximum frequency and 28-VFQFN package make the device suitable for compact RF modules, while the -40°C to +85°C operating range supports industrial-temperature design requirements. Validate EMC, enclosure grounding, thermal performance, and long-term calibration behavior in the final system.

🖥️

RF Test and Measurement Instrument

SI4136-BM may be used in an RF test instrument that needs a programmable local oscillator or IF reference for signal generation or analysis. The three internal VCOs and dividers can support multiple synthesis paths, while the serial interface simplifies configuration by firmware. In an instrument, reference spurs, phase noise, lock behavior, output isolation, and calibration accuracy are often more important than raw integration alone. Those parameters are not available in the supplied verified excerpts and must be measured or obtained from the complete datasheet.

📱

Wireless Communication Module

SI4136-BM is a practical fit for a wireless communication module that requires an integrated frequency synthesizer rather than a collection of discrete RF timing components. The monolithic integration of three VCOs, loop filters, dividers, and phase detectors can reduce board-level frequency-generation complexity. A module designer should account for the 2.7 V to 3.6 V supply range, exposed-pad thermal connection, reference routing, and RF layout separation. The final design must verify channel spacing, frequency accuracy, spur performance, and regulatory compliance for the deployed wireless standard.

What is Silicon Labs SI4136-BM?
Silicon Labs SI4136-BM is an RF frequency synthesizer IC designed for wireless communications. According to the manufacturer datasheet identified in the verified sources, it includes three VCOs, loop filters, reference and VCO dividers, and phase detectors, while divider and powerdown settings are programmable through a three-wire serial interface. The verified part data identifies a maximum frequency of 2.5 GHz and a 28-VFQFN exposed-pad package.
What are the key specifications of SI4136-BM?
SI4136-BM supports a maximum frequency of 2.5 GHz, operates from 2.7 V to 3.6 V, and is packaged as a 28-VFQFN exposed-pad surface-mount device. Verified listings also identify one PLL circuit, a crystal input, a clock output, three integrated VCOs, programmable divider settings, and a three-wire serial interface. These specifications place the device in the RF frequency-synthesizer and PLL clock-and-timing category.
Where can I download the SI4136-BM datasheet PDF?
The SI4136-BM datasheet PDF can be accessed through the verified manufacturer-data link at https://www.datasheets.com/silicon-labs/si4136-bmr/datasheet.pdf. The same search results provide additional SI4136 documentation through AllDataSheet and Win-Source. The PDF should be used to confirm pin assignments, exposed-pad layout, reference requirements, tuning range, loop-filter programming, and absolute maximum ratings before PCB release.
Where is the SI4136-BM pinout located?
The SI4136-BM pinout is located in the manufacturer or authorized datasheet for the 28-VFQFN exposed-pad package. The verified search results confirm that the package is a 28-VFQFN surface-mount device, but they do not provide a complete numbered pin table, so this page does not infer pin names or numbering. Use the latest manufacturer PDF and the package drawing to map VCO, reference, divider, serial-interface, power, and exposed-pad connections.
How many VCOs does SI4136-BM contain?
SI4136-BM contains three VCOs. The verified manufacturer-description excerpt states that the monolithic IC includes three VCOs along with loop filters, reference and VCO dividers, and phase detectors. This multi-VCO architecture supports flexible RF and IF synthesis in wireless communication systems, while the programmable serial interface allows system software to configure divider and powerdown settings.
What supply voltage does SI4136-BM require?
SI4136-BM is specified for an operating supply range of 2.7 V to 3.6 V. The verified distributor and GlobalSpec results both identify this voltage range. Because the device also has an exposed thermal pad, power delivery and pad connection must follow the manufacturer’s layout and thermal guidance; the exact supply-current limits and bypass-capacitor values are not present in the supplied verified data.
Can SI4136-BM be used in wireless communication equipment?
Yes, SI4136-BM is intended for wireless communication equipment requiring programmable RF or IF synthesis. The verified description identifies the IC as a wireless-communications synthesizer and confirms integrated VCOs, dividers, phase detectors, loop filters, and a three-wire serial interface. In a transmitter or receiver, it can generate the required local oscillator or conversion reference while the transceiver performs mixing, modulation, filtering, and power amplification.
What is the difference between SI4136-BM and a fixed-frequency oscillator?
SI4136-BM is more programmable than a fixed-frequency oscillator because it integrates three VCOs, reference and VCO dividers, phase detectors, and loop filters under serial control. A fixed oscillator provides a predetermined frequency with fewer programmable functions, whereas SI4136-BM supports configurable divider and powerdown settings for RF and IF synthesis. The verified data confirms the architecture but does not provide the complete tuning-range or resolution table.
Is SI4136-BM pin-compatible with SI4136-F-BM?
SI4136-F-BM is presented in the verified cross-reference results as a related SI4136-series part, but the supplied data does not include a manufacturer pin-to-pin compatibility statement or a complete electrical comparison. Therefore, it should not be treated as a confirmed drop-in replacement without reviewing the current datasheets, package drawings, supply requirements, frequency range, and programming map. A distributor cross-reference listing alone does not prove drop-in compatibility.
What can replace SI4136-BM?
A confirmed drop-in replacement for SI4136-BM must use the same package and pinout, operate from the same 2.7 V to 3.6 V supply range, support the required frequency architecture, and provide equivalent programmable divider and powerdown functions. The verified cross-reference results identify SI4136-F-BM and SI4136-F-GM as related search results, but they do not provide sufficient verified pin compatibility to recommend them as drop-in alternatives. Confirm the manufacturer datasheet before substitution.
Is SI4136-BM suitable for RF front-end designs?
SI4136-BM is suitable for RF front-end designs that need programmable frequency synthesis up to 2.5 GHz. Its three VCOs and integrated PLL functions can provide RF or IF conversion references in wireless systems, reducing the need for multiple discrete frequency-generation blocks. The design must still account for reference-noise requirements, loop stability, shielding or grounding, impedance-controlled routing, and the exact output characteristics specified by the manufacturer.
How should the SI4136-BM exposed pad be handled on a PCB?
The SI4136-BM exposed pad should be connected according to the manufacturer’s 28-VFQFN land-pattern and thermal-layout instructions. The verified data confirms that the package has an exposed pad, but it does not provide pad dimensions, solder-mask details, or via recommendations. Do not infer these dimensions from the package name alone; use the current manufacturer package drawing and preserve the required electrical and thermal copper connection.
How is SI4136-BM programmed?
SI4136-BM uses a three-wire serial interface to program divider and powerdown settings. The verified description states that these settings are programmable, but the supplied excerpts do not include the complete command set, timing diagram, logic levels, or register map. Firmware and hardware designs must follow the manufacturer’s programming sequence and account for the required reference and supply conditions before enabling the synthesizer.
Where can I buy SI4136-BM and what is its lead time?
SI4136-BM is listed for purchase by DigiKey, Hotenda, and other distributors in the verified search results, and DigiKey’s listing states that the part ships today. However, the supplied data does not include numeric unit prices, stock quantities, or a formal manufacturer lead time for each quantity tier. Request a current quotation and availability confirmation before committing to a production schedule, especially because the search results also reference both Silicon Labs and Skyworks Solutions.
What is the price of SI4136-BM?
The verified web results confirm that SI4136-BM is offered by multiple distributors and can be purchased, but they do not provide numeric prices. DigiKey, Octopart, and other listings should be checked for the exact package and manufacturer identity. Pricing is therefore recorded as unavailable here rather than estimated; the current distributor quotation is required for commercial decisions as of 2026-10-22.

Technische Referenzdaten für SI4136-BM – Vergleich, Designhinweise und Compliance-Informationen.

Auswahlhilfe

Choose SI4136-BM when the design needs a wireless RF or IF synthesizer with integrated three-VCO capability, programmable divider and powerdown settings, a three-wire serial interface, a 2.5 GHz maximum frequency, and a 28-VFQFN exposed-pad package. The related SI4136-F-series parts may be useful candidates for investigation, but the supplied evidence does not establish that any of them is truly drop-in compatible. Confirm the exact suffix, pinout, supply limits, register map, VCO ranges, output specifications, and lifecycle status before substitution. If the design does not require RF synthesis or exceeds the verified 2.5 GHz range, use a different frequency generator rather than forcing this part into the application.

Vergleich mit Alternativen

Parameter Dieses Produkt SI4136-F-BM SI4136-F-GM SI4136-F-BT SI4136-F-GMR SI4136-BMR
Brand Silicon Labs Silicon Labs Silicon Labs Silicon Labs Silicon Labs Silicon Labs
Product Type RF frequency synthesizer IC Related SI4136-series frequency-synthesizer listing Related SI4136-series frequency-synthesizer listing Related SI4136-series listing Related SI4136-series listing Related SI4136-series listing

Wichtigste Unterscheidungsmerkmale

  • Integrated multi-VCO synthesizer architecture (vs. SI4136-F-BM)
  • Wireless RF and IF synthesis positioning (vs. SI4136-F-GM)
  • Three-wire programmable control (vs. SI4136-F-BT)

Designhinweise

Use the manufacturer’s exact 28-VFQFN land pattern and preserve the exposed-pad electrical and thermal connection. The verified data confirms an exposed-pad package but does not provide pad dimensions, mask rules, or via spacing, so the PCB footprint must not be inferred from the package name. Place input, supply, and decoupling connections according to the official reference layout before signal-integrity or RF routing begins.

Keep the reference input, synthesizer control lines, and RF output paths short and controlled, and separate sensitive timing routes from switching-power nodes and high-current return paths. Because the device supports RF synthesis up to 2.5 GHz, trace geometry, return-plane continuity, impedance targets, and enclosure or chassis grounding can affect system behavior. The supplied data does not specify output impedance or layout values, so validate the final stackup and RF environment with the manufacturer’s guidance.

Design the low-voltage supply around the verified 2.7 V to 3.6 V operating range and verify startup, sequencing, and transient response in the complete RF module. The exposed pad should be connected to the intended supply or ground network only as directed by the manufacturer’s pin table. Do not invent bypass values or current limits; obtain them from the complete datasheet and measure in-circuit behavior for the selected reference and output-frequency range.

A distributor cross-reference listing does not by itself prove that SI4136-F-BM, SI4136-F-GM, or another related suffix is a true drop-in replacement. Before substituting, compare package drawings, every numbered pin, supply limits, serial protocol, register behavior, divider ranges, VCO coverage, output characteristics, and lifecycle status. The verified excerpts do not provide enough detail to certify any related part as a production replacement.

Compliance-Informationen

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
Bleifrei
Unknown
Halogenfrei
Unknown
Konfliktmineralien
Unknown

The supplied verified results identify the component, package, supply range, temperature range, and sourcing information but do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-mineral status. Compliance must be confirmed from current manufacturer documentation or authorized distributor records.

Daten verifiziert am: 2026-10-22 – Daten geprüft und kuratiert vom Bauteil-Engineering-Team von XAIPART

Ähnliche Suchanfragen

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Verwandte Bauteile & Begriffe

Silicon Labs SI4136-BM RF frequency synthesizer frequency synthesizer PLL phase-locked loop clock and timing three VCOs reference divider VCO divider phase detector loop filter three-wire serial interface wireless communications RF synthesis IF synthesis 2.5 GHz 2.7 V 3.6 V 28-VFQFN exposed pad surface mount SI4136-F-BM SI4136-F-GM RF front end
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