SI4114G-BM RF Synthesizer | Silicon Labs
部品番号: SI4114G-BM ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
SI4114G-BM 概要
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.
ドロップイン代替品: SI4114G-BM — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストSI4114G-BM 仕様
| Product Type | RF frequency synthesizer with integrated VCOs |
| Supported Applications | Direct-conversion GSM and GPRS wireless communications |
| Supported RF Applications | E-GSM 900, DCS 1800, and PCS 1900 |
| GPRS Transient Response | Fast transient response for multislot channel switching |
| パッケージ | 28-QFN |
| Package Pin Count | 28 pins |
| Lifecycle Recommendation | Not recommended for new designs |
| Manufacturer Recommended Replacement | Multiple Si41xx-D-GM devices |
SI4114G-BM 28 pins ピン配置ガイド
SI4114G-BM (28 pins パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: SI4114G-BM.
詳細は データシート をご参照ください。
主な用途
SI4114G-BM の用途: 6 件s: Legacy GSM Direct-Conversion Receiver, GPRS Multislot RF Terminal, GSM Transmitter Frequency Generation, Wireless Test Equipment RF Source, Legacy Multiband Radio Retrofit, Obsolete Equipment Maintenance.
Legacy GSM Direct-Conversion Receiver
The SI4114G-BM is a fit for a legacy direct-conversion GSM receiver requiring synthesized RF coverage for E-GSM 900, DCS 1800, or PCS 1900. It integrates VCOs with the synthesizer and targets fast transient response, making channel retuning relevant to packet-data and time-division systems. Before using it in a new receiver, verify the required local-oscillator range, reference frequency, phase-noise profile, settling time, and output interface against the manufacturer datasheet. Existing boards may benefit most because the supplied lifecycle record does not recommend the device for new designs.
GPRS Multislot RF Terminal
For a GPRS multislot terminal, the SI4114G-BM's cited fast transient response can support channel switching where retuning time affects receiver or transmitter readiness. The device supports the three RF application bands identified in the supplied Silicon Laboratories datasheet record: E-GSM 900, DCS 1800, and PCS 1900. Integration of the VCOs with the synthesizer may simplify an RF architecture compared with discrete oscillators, but the external reference and loop components remain central. Verify settling-time and phase-noise requirements before selecting this legacy part for production.
GSM Transmitter Frequency Generation
The SI4114G-BM can be evaluated for frequency generation in a legacy GSM transmitter because it performs multiband RF synthesis for E-GSM 900, DCS 1800, and PCS 1900 applications. Its integrated VCOs provide the required local-oscillator function within a dedicated RF synthesizer IC. RF layout remains critical: supply return paths, reference routing, loop-filter components, and controlled impedances must follow the manufacturer application guidance. Since the verified records do not provide output level or tuning-range limits, those specifications must be checked before assigning the device to a transmitter power chain.
Wireless Test Equipment RF Source
A legacy GSM test system may use the SI4114G-BM when it must reproduce E-GSM 900, DCS 1800, or PCS 1900 channel frequencies. Its RF synthesizer and integrated VCO architecture make it potentially useful for channel-oriented stimulus generation or receiver alignment fixtures. The supplied source emphasizes fast transient response, which can help when measurements follow rapid channel changes. However, the verified records do not establish frequency accuracy, reference-input options, phase-noise limits, or output power, so these requirements must be measured or documented before using the part as a general laboratory source.
Legacy Multiband Radio Retrofit
The SI4114G-BM is appropriate for a targeted retrofit of an existing multiband radio when the original schematic, reference clock, RF trace geometry, and firmware have already been validated around this synthesizer. Its integrated VCOs and support for E-GSM 900, DCS 1800, and PCS 1900 are useful for preserving a known architecture. Replacement work should compare the complete datasheet pinout and operating limits, because package similarity alone does not establish compatibility. Mouser's not-for-new-designs guidance makes migration of an existing board substantially safer than introducing this legacy family into a new platform.
Obsolete Equipment Maintenance
The SI4114G-BM may be used to maintain obsolete GSM or GPRS test and communication equipment where the PCB has no straightforward redesign path. Preserving the original architecture can reduce risk when the device is obtained with traceable sourcing and verified against the manufacturer requirements. Before installation, inspect the QFN assembly, compare the exact ordering code, and confirm the available electrical specifications and operating temperature limits. The lifecycle record makes it prudent to buy enough qualified material for the intended maintenance cycle rather than assuming long-term availability.
エンジニアリング参考データ: SI4114G-BM — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
設計ノート
Do not treat the phrase “multiple Si41xx-D-GM devices” as proof of a direct replacement. The supplied Mouser data names the modern family as the recommended path, but it does not establish package, pin, control-interface, RF-range, or firmware compatibility. Select a replacement only after comparing each candidate's datasheet, footprint, reference requirements, tuning commands, and RF performance.
Preserve the validated reference-clock, loop-filter, RF-output, ground, and supply routing of an existing design whenever possible. The supplied records do not include the pinout or reference circuit, so do not infer connections from the 28-QFN package alone. Retrieve the Si4114G datasheet, compare every net with the installed board, and confirm exposure and assembly requirements before rework.
Obtain the exact supply-voltage, current, decoupling, and loop-component requirements from the manufacturer datasheet before energizing a replacement board. These values are not included in the verified search records and cannot be safely estimated for a legacy RF synthesizer. Check polarity, supply sequencing, exposed-pad connection, and component placement against the original reference design.
コンプライアンス情報
The supplied verified records do not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is treated as not applicable because the part is described for GSM and GPRS wireless communications rather than an automotive-qualified device.
