SI4112-BT - 1 GHz Dual-Band RF Synthesizer | Silicon Labs
料号： SI4112-BT ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
SI4112-BT 概述
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.
直接替换替代料： SI4112-BT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： SI4112-BT （相同外形与封装尺寸） ——差异在于 Package, Product Type, Mounting Type, External Components Required, Input-to-Output Ratio.
快速对比工具——选择替代料号进行并排对比：
SI4112-D-GM
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →SI4112-D-GTR
✅ 直接替换📋 参考替代料（不在目录中）
SI4113-BT
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →SI4122-D-GT
✅ 直接替换📋 参考替代料（不在目录中）
SI4112-BT 规格参数
| Device Type | Dual-band RF frequency synthesizer with integrated VCOs |
| Maximum Stated Frequency | 1 GHz |
| Output Count | 1 |
| 封装 | 24-TSSOP, 0.173 inch, 4.40 mm width |
| 安装类型 | Surface mount |
| Application Category | Wireless communications RF signal generation |
| Integrated VCOs | Integrated VCOs specified by search result description |
SI4112-BT 24-tssop, 0.173 inch, 4.40 mm width 引脚配置指南
SI4112-BT（24-tssop, 0.173 inch, 4.40 mm width 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： SI4112-BT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
SI4112-BT 适用于 6 应用s: Wireless Transceiver Local Oscillator, Dual-Band RF Signal Generation, RF Modulation and Demodulation Chain, Wireless Communication Test Equipment, RF Communication Front End, Portable Wireless Control Systems.
Wireless Transceiver Local Oscillator
SI4112-BT is a natural candidate for a programmable RF local-oscillator stage in wireless transceivers because the verified description identifies a dual-band RF synthesizer with integrated VCOs and a stated capability up to 1 GHz. Place it where the receiver or transmitter requires a synthesized reference rather than a fixed crystal-derived tone. Confirm the actual tuning range, phase-noise limits, output power, lock time, and reference requirements before committing to a channel plan. The integrated-VCO architecture may simplify the RF signal chain, but it does not remove the need for controlled-impedance routing, decoupling, and loop-layout validation.
推荐
Dual-Band RF Signal Generation
Use SI4112-BT where a wireless design requires synthesized RF generation across two operating bands or related frequency plans. Its supplied description explicitly calls it a dual-band RF synthesizer, while the distributor result confirms a maximum stated frequency of 1 GHz and one output. The actual band ranges are not included in the evidence, so engineers must verify the datasheet’s tuning table and synthesizer settings against every RF channel. This application benefits from a clean reference source and careful isolation between sensitive receiver nodes and the synthesizer output.
推荐
RF Modulation and Demodulation Chain
SI4112-BT can support modulation or demodulation systems that require a programmable RF carrier or local reference. The integrated-VCO description makes it relevant to compact wireless signal-generation blocks, but the verified data does not provide modulation bandwidth, spur performance, or phase-noise figures. Before implementation, characterize the synthesizer output at the required channel frequencies and confirm that its phase noise and spur levels meet the receiver’s sensitivity and adjacent-channel requirements. Place the RF output and reference connections according to the manufacturer’s recommended layout.
推荐
Wireless Communication Test Equipment
SI4112-BT may be useful in RF test and measurement equipment that generates controlled carrier signals for transmitter, receiver, or modulation-chain evaluation. Its verified 1 GHz stated capability provides a useful starting point for many RF test scenarios, but the supplied evidence does not define output power accuracy or tuning resolution. The synthesizer should be paired with verified calibration paths, power-level measurement equipment, and a reference source appropriate to the required frequency plan. Temperature, aging, lock behavior, and long-term stability must be tested before production use.
推荐
RF Communication Front End
SI4112-BT is relevant to the frequency-generation portion of an RF communication front end because it is identified as a high-frequency synthesizer with integrated VCOs. The verified package is 24-TSSOP, making it useful for compact board layouts where a separate VCO arrangement is undesirable. However, the available sources do not establish input sensitivity, isolation, output power, or regulatory parameters. Evaluate the complete front end, including antenna interfaces, filtering, amplifiers, and reference-clock architecture, rather than treating the synthesizer as a complete RF transmitter or receiver.
推荐
Portable Wireless Control Systems
For battery-powered or portable wireless equipment, SI4112-BT can serve as the RF frequency-generation element when its verified 1 GHz capability matches the design. The integrated-VCO description may reduce external RF component count, while the 24-TSSOP package supports standard surface-mount assembly. Power consumption, supply voltage, output level, and thermal performance are not provided in the verified data, so battery-life and thermal analysis cannot be completed from this page alone. Confirm low-power modes and operating-temperature limits in the manufacturer datasheet before selecting it for mobile equipment.
推荐
推荐产品汇总
工程参考数据： SI4112-BT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | SI4112-D-GM | SI4112-D-GTR | SI4113-BT | SI4122-D-GT | SI4112-BT |
|---|---|---|---|---|---|---|
| Brand | Silicon Labs | Skyworks Solutions Inc. | Skyworks Solutions Inc. | Silicon Labs | Skyworks Solutions Inc. | Silicon Labs |
| Frequency Synthesizer Function | RF frequency synthesis | RF synthesis stated | RF synthesis stated | Related synthesizer function | RF synthesis stated | RF frequency synthesis |
| Wireless Communications Positioning | Yes | Precision timing and communication systems stated | Related communication synthesizer comparison | Related wireless synthesizer comparison | RF wireless positioning stated | Wireless communications positioning stated |
关键差异点
- Verified 1 GHz stated synthesizer capability （对比 SI4112-D-GM)
- Explicit dual-band and integrated-VCO positioning （对比 SI4122-D-GT)
- Single-output 24-TSSOP identity is directly stated （对比 SI4113-BT)
设计说明
Treat the RF output and reference paths as controlled-impedance structures and verify the exact pin assignments, recommended termination, and keepout guidance from the applicable Silicon Labs datasheet. The supplied evidence confirms a 24-TSSOP package but does not provide the pin map, so do not route power, control, or RF connections from assumptions based only on similar synthesizer families.
Use a low-noise reference source and place the synthesizer’s reference and decoupling connections according to the manufacturer’s recommended layout. Because phase noise, reference sensitivity, and lock behavior are not supplied, evaluate them experimentally with the intended carrier frequencies. Separate sensitive receive paths from the RF synthesizer output and verify isolation in the assembled board.
Do not assume that a related SI4112, SI4113, or SI4122-family device is a drop-in replacement merely because search results show a TSSOP package. Verify pin names, supply voltage, control interface, tuning range, VCO settings, output level, and register behavior against the exact datasheet. An unverified substitution can change RF performance even when the package outline appears similar.
合规信息
Compliance status was not present in the supplied verified web data and must be confirmed from the manufacturer or authorized distributor documentation.
