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SI4115G-BM PLL Clock Synthesizer | Silicon Labs

부품 번호: SI4115G-BM ✗ 단종
재고 있음 영업일 기준 1~3일 내 발송
MLP-28 Package
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MOQ: 1 |
가격 업데이트: 2026-10-22
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SI4115G-BM 개요

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.

드롭인 대체품: SI4115G-BM — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

SI4115G-BM

✅ 드롭인
Silicon Labs
📦 MLP-28
Frequency synthesizer · Clock generator, PLL, and frequency synthesizer · GSM/GPRS synthesis and external synthesis · MLP-28 · 28 pins

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가격 문의

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Si4126-F-GM

✅ 드롭인
📦 [DATA_NEEDED: package]
Recommended replacement candidate, but package and pin compatibility are not verified

📋 참조 대체품 (카탈로그에 없음)

SI4115G-BM 사양

Product Type Frequency synthesizer
Device Category Clock generator, PLL, and frequency synthesizer
Application Context GSM/GPRS synthesis and external synthesis
패키지 MLP-28
핀 수 28 pins
PLL Architecture Phase-locked loop frequency synthesis
수명 주기 상태 Legacy component; not suitable for new designs

SI4115G-BM mlp-28 핀 구성 가이드

SI4115G-BM(mlp-28 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.

SI4115G-BM의 mlp-28 패키지 핀아웃 다이어그램

다음에 대한 상세 핀아웃 데이터 없음: SI4115G-BM.

다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.

일반적인 애플리케이션

SI4115G-BM 적합 용도: 6 애플리케이션s: GSM Wireless Clock Generation, RF and Baseband Timing, Legacy Communications Equipment Repair, External Frequency Synthesis, Wireless Test and Measurement Equipment, Industrial Embedded Timing Reference.

🌐

GSM Wireless Clock Generation

The SI4115G-BM is associated by the verified FindIC listing with GSM/GPRS synthesis, making it a legacy clock-generation option for maintaining wireless equipment designed around its original frequency plan. In such a system, the synthesizer role would be to derive the required timing or carrier-related frequency from a reference source. The supplied data does not verify the input frequency range, output range, channel spacing, supply voltage, or output topology, so those values must be obtained from the original manufacturer datasheet before confirming use in a specific GSM design.

📡

RF and Baseband Timing

A PLL-based frequency synthesizer can support RF and baseband systems that require stable, programmable timing references, although the exact suitability of SI4115G-BM depends on unverified electrical specifications. The part is classified as a clock generator, PLL, and frequency synthesizer, so it belongs in the clock-and-timing hierarchy used by communications equipment. Any implementation must verify reference frequency, synthesized output range, loop stability, jitter, supply voltage, and grounding before the legacy device is placed in a new or modified board.

🔧

Legacy Communications Equipment Repair

SI4115G-BM is most defensible as a maintenance component for an existing communications PCB whose original design has already been validated with this device. The verified Veswin result calls it a legacy PLL and recommends Si4126-F-GM as a replacement candidate, which highlights the need to compare the original and replacement documentation carefully. Repair teams should preserve the original reference network, loop filter, decoupling, and package footprint, then verify timing and RF behavior before committing a sourced part to production or field use.

📶

External Frequency Synthesis

The verified product description explicitly associates SI4115G-BM with external synthesis, indicating a role in producing a controlled frequency from an external reference or clock source. This can be useful in legacy RF and communications equipment where the board already contains the required loop-filter and output network. Because the supplied material does not identify the reference input, output frequency range, divider configuration, or output impedance, engineers must confirm those values against the manufacturer documentation before treating the part as a general-purpose external synthesizer.

🖥️

Wireless Test and Measurement Equipment

Legacy wireless test equipment may use a dedicated PLL synthesizer to generate repeatable clock or RF-related frequencies for measurement and calibration functions. SI4115G-BM could fit only when its original reference, output range, supply, and pin configuration match the existing equipment. The verified data does not establish output amplitude, phase noise, jitter, settling time, or temperature performance, so an instrumentation engineer should not select it solely from the broad frequency-synthesizer category. A full manufacturer datasheet comparison is mandatory.

🏭

Industrial Embedded Timing Reference

A PLL-based clock synthesizer can be considered for an embedded timing subsystem that requires a stable programmable frequency derived from a reference clock. SI4115G-BM is not recommended as an unqualified new-design choice because its verified lifecycle information describes it as legacy and unsuitable for new designs. A redesign should instead compare current supported devices, and any legacy reuse must preserve the original loop filter and output network and be validated for temperature, supply tolerance, phase noise, and startup behavior.

What is SI4115G-BM?
SI4115G-BM is a Silicon Labs clock-generator and frequency-synthesizer IC associated with PLL-based GSM/GPRS and external-synthesis applications. The verified distributor listings classify it as a clock generator, PLL, and frequency synthesizer, while the available cross-reference result identifies the package as MLP-28. Exact operating limits and electrical characteristics must be confirmed from the original manufacturer datasheet because those values are not present in the supplied snippets.
What package does SI4115G-BM use?
SI4115G-BM is associated with an MLP-28 package in the supplied cross-reference data. The available material does not provide verified body dimensions, lead pitch, exposed-pad details, pin names, or pin numbering. Because the package is a 28-pin MLP-style package, use the official package drawing and pin table before laying out a replacement PCB. Do not assume that a functionally similar PLL is pin-compatible.
Where can I download the SI4115G-BM datasheet PDF?
The verified FindIC listing provides a SI4115G-BM datasheet download page at https://www.findic.us/price/si4115g-bm-mLJ6aWNKL.html. The supplied search result does not expose a manufacturer-hosted PDF URL or a verified document number, so the document identity and revision should be checked before use. For new designs, the original Silicon Labs documentation or an authorized technical source should be preferred.
Is SI4115G-BM suitable for new designs?
SI4115G-BM is identified in the verified Veswin result as a legacy PLL component and is stated to be not suitable for new designs. That lifecycle information makes it a maintenance or legacy-repair consideration rather than a preferred starting point for a new PCB. If a supported solution is required, compare current Silicon Labs frequency synthesizers against the original reference frequency, output frequency, supply voltage, jitter, and package requirements.
What is the price of SI4115G-BM?
The verified search results confirm that SI4115G-BM is offered through multiple distributor and sourcing pages, but they do not provide a reliable current numeric price. Accordingly, the available price tiers are recorded as 0.0 rather than presenting an invented quotation. A binding unit price must be obtained from the seller after confirming condition, quantity, country, and whether the component is original, refurbished, or replacement inventory as of 2026-10-22.
Where can I buy SI4115G-BM online?
SI4115G-BM can be investigated through the verified Xecor, DigiKey, Dasenic, Hotenda, Veswin, and other distributor listings included in the supplied data. Availability and delivery status are not consistently stated, and the product is described as a legacy part, so sellers may list it as obsolete, surplus, or replacement inventory. Request a written quotation and traceability confirmation before ordering. The listed price tiers do not imply that stock is currently available.
What is the lead time for SI4115G-BM?
The verified data does not state a current lead time for SI4115G-BM. Distributor pages indicate that quotations, stock checks, and order inquiries are available, but they do not establish a guaranteed delivery interval. Because the part is a legacy PLL, lead time can vary significantly with remaining inventory and component condition. Request a written lead time and traceability statement from the selected supplier as of 2026-10-22 rather than relying on a generic inventory estimate.
Is SI4115G-BM in stock?
Stock status for SI4115G-BM is not confirmed by the supplied verified data. The DigiKey result says to check stock and pricing, while other listings provide sales or RFQ pages without a confirmed quantity. The part is also described as legacy and not suitable for new designs. Therefore, treat inventory as unknown until the distributor explicitly confirms available stock, lot traceability, and the component’s operating condition.
What can replace SI4115G-BM?
The verified Veswin result recommends Si4126-F-GM as a replacement candidate, but it does not prove that the part is pin-to-pin compatible or a drop-in substitute. A safe replacement must match the MLP-28 footprint, supply voltage, reference and output frequency ranges, PLL configuration, control interface, and timing performance. Treat Si4126-F-GM as a lead for engineering evaluation, not as an approved drop-in replacement.
What is the best drop-in replacement for SI4115G-BM?
No verified drop-in replacement is established in the supplied data. The available search results identify Si4126-F-GM as a recommended replacement candidate, but provide no verified evidence of a shared MLP-28 footprint, identical pinout, or matching electrical limits. A true drop-in replacement requires manufacturer documentation or a completed engineering cross-reference. Do not substitute based only on the words PLL, frequency synthesizer, or legacy replacement.
Is SI4115G-BM the same as Si4126-F-GM?
SI4115G-BM and Si4126-F-GM are not verified as identical parts. The supplied Veswin listing calls Si4126-F-GM a recommended replacement for the legacy SI4115G-BM, but it does not state pin compatibility, package equivalence, or matching electrical parameters. The two MPNs should therefore be treated as different devices until the manufacturer package drawings, pin tables, frequency ranges, and application requirements are compared.
SI4115G-BM vs Si4126-F-GM: which is better for a GSM design?
Si4126-F-GM may be the more appropriate candidate for a new GSM-related design because the verified Veswin result recommends it as a replacement for legacy SI4115G-BM. It cannot be declared universally better without matching the original reference frequency, synthesis range, output arrangement, supply voltage, jitter, and package. For a new design, evaluate current Silicon Labs documentation and validate the replacement on an engineering basis rather than treating it as a guaranteed drop-in part.
When should I choose SI4115G-BM instead of a newer PLL?
Choose SI4115G-BM only when maintaining an existing PCB where the original device is already qualified, the replacement must reproduce the existing pin and frequency behavior, and the legacy lifecycle risk has been reviewed. For new designs, a current or supported PLL is generally preferable because the verified data identifies SI4115G-BM as a legacy component. Any replacement should be checked for reference frequency, output frequency, supply voltage, package, and control-interface compatibility.
What are the key specifications of SI4115G-BM that engineers should know?
The verified data establishes that SI4115G-BM is a PLL-based clock and frequency-synthesizer IC in an MLP-28 package and identifies GSM/GPRS and external synthesis as application contexts. It does not provide verified input frequency, output frequency, supply voltage, output count, temperature range, or timing specifications. Those fields remain data-needed. Engineers should obtain the original manufacturer datasheet before designing a clock tree or approving a replacement.
Where can I find the SI4115G-BM pinout?
The supplied search results direct users to the SI4115G-BM datasheet and product pages, including the FindIC datasheet listing and the Jotrin product page, but they do not provide a verified pin-by-pin table or package drawing. The available data indicates an MLP-28 package. Use the official manufacturer datasheet or an authorized technical document to confirm all 28 pins, exposed-pad treatment, and numbering before PCB layout or replacement work.

엔지니어링 참조 데이터: SI4115G-BM — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose SI4115G-BM primarily for repair or maintenance of an existing PCB that was designed around this exact legacy PLL, provided the original manufacturer documentation and a controlled replacement process are available. Do not select it for a new design based only on the broad description “clock generator” or “frequency synthesizer.” Consider Si4126-F-GM because the verified Veswin result identifies it as a replacement candidate, but treat it as an engineering lead until its package, pinout, frequency ranges, supply requirements, and control interface are confirmed. For new communications, RF, or embedded clock architectures, compare current synthesizer options against the complete frequency plan and verify lifecycle support before committing to a board design.

대체품과의 비교

파라미터 이 제품 Si4126-F-GM
Brand Silicon Labs Silicon Labs
Replacement Status Target legacy PLL Recommended replacement candidate in verified Veswin result

주요 차별점

  • Verified legacy identity (vs Si4126-F-GM)
  • Application context (vs Si4126-F-GM)
  • Replacement evidence (vs Si4126-F-GM)

설계 노트

Do not treat the Veswin recommendation of Si4126-F-GM as proof of drop-in compatibility. Before any replacement, compare the MLP-28 package drawing, exposed-pad arrangement, pin names, reference input, supply rails, output stages, and loop-filter requirements. The supplied data does not provide the SI4115G-BM pinout or the Si4126-F-GM package details, so a schematic-level and package-level review is mandatory.

Preserve the original power-supply routing and decoupling arrangement when replacing SI4115G-BM. The verified snippets do not specify the operating voltage, current consumption, or supply tolerances, so those values must come from the manufacturer datasheet. Check that the candidate device supports the same rail, startup behavior, ground reference, and output bias conditions; do not infer these requirements from the generic PLL category.

A PLL synthesizer depends on the reference path, loop filter, output network, and controlled grounding. Validate the reference amplitude, output termination, filtering, startup settling, phase noise, and jitter against the original system requirements. The supplied data does not provide those timing or signal-integrity values, so bench comparison and datasheet verification are required before field deployment.

규정 준수 정보

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
무연
Unknown
무할로겐
Unknown
분쟁 광물
Unknown

The supplied verified data does not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. Compliance fields are therefore unknown rather than inferred.

관련 검색

SI4115G-BM SI4115G-BM datasheet Silicon Labs SI4115G-BM SI4115G-BM MLP-28 SI4115G-BM GSM/GPRS synthesizer SI4115G-BM external frequency synthesis SI4115G-BM replacement SI4115G-BM vs Si4126-F-GM SI4115G-BM buy price SI4115G-BM stock and lead time SI4115G-BM pinout legacy PLL replacement

관련 부품 & 용어

Silicon Labs SI4115G-BM Si4126-F-GM Skyworks Solutions clock generator phase-locked loop PLL frequency synthesizer Clock & Timing GSM/GPRS external synthesis MLP-28 frequency control RF timing baseband timing loop filter reference clock output frequency input frequency legacy component drop-in replacement pin compatibility lifecycle status RoHS REACH AEC-Q100
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