SI4113-BT - 1.8 GHz Dual-Band RF Synthesizer | Silicon Labs
料号： SI4113-BT ✓ 量产中| 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 |
SI4113-BT 概述
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.
直接替换替代料： SI4113-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： SI4113-BT （相同外形与封装尺寸） ——差异在于 Package, RoHS Status, Device Type, Application Category, Integrated Functions.
快速对比工具——选择替代料号进行并排对比：
SI4136-BT
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →SI4113-D-GT
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →SI4123-D-GT
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →SI4113-D-GTR
✅ 直接替换📋 参考替代料（不在目录中）
SI4113-BT 规格参数
| Product Type | Dual-band RF frequency synthesizer IC |
| Maximum Frequency | 1.8 GHz |
| Supply Voltage Range | 2.7 V to 3.6 V |
| Typical Operating Supply | 3.6 V |
| Typical Supply Current | 18 mA |
| Standby Current | 1 µA |
| Input-to-Output Ratio | 1:1 |
| Integrated Functions | Integrated VCOs and loop filters |
| External Components Required | 2 minimum external components |
| RF Outputs | RF1 and RF2 outputs |
| Harmonic Suppression | -26 dBc |
| Power-Down Modes | Programmable |
| 工作温度 | Maximum +85 °C |
| 封装 | 24-pin TSSOP |
| Package Width | 4.40 mm (0.173 in) |
| 安装类型 | Surface mount |
| RoHS 状态 | No per Mouser listing |
SI4113-BT 4.40 mm (0.173 in) 引脚配置指南
SI4113-BT（4.40 mm (0.173 in) 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： SI4113-BT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
SI4113-BT 适用于 6 应用s: Dual-Band Wireless Transceiver, RF1/RF2 Carrier Generation, Wireless Communication Module, Battery-Powered RF Terminal, RF Test and Measurement Equipment, Industrial Wireless Sensor.
Dual-Band Wireless Transceiver
The SI4113-BT fits a dual-band wireless-transceiver design because it is identified as a dual-band RF synthesizer with RF1 and RF2 outputs and integrated VCOs and loop filters. Placing the synthesizer near the RF signal chain can reduce routing complexity while providing programmable frequency generation for channel selection. Its 1.8 GHz maximum frequency makes it relevant to RF systems operating below that limit, but the actual band plan, divider settings, and output frequency range must be confirmed in the datasheet. Keep the reference path short and use controlled-impedance routing to preserve signal integrity.
推荐
RF1/RF2 Carrier Generation
Use the SI4113-BT when a wireless product needs dedicated RF1 and RF2 synthesis paths rather than a single fixed-frequency clock source. The verified distributor description identifies RF1/RF2 outputs, while the integrated VCO and loop-filter architecture can reduce the number of external RF components. The designer must program the supported channel frequencies, configure dividers and loop settings, and confirm output drive and coupling requirements against the manufacturer documentation. Short, symmetric RF traces and a continuous ground reference help reduce reflections and unintended coupling.
推荐
Wireless Communication Module
The SI4113-BT is suited to wireless communication modules that require local carrier generation close to the transceiver RF section. Its 2.7 V to 3.6 V supply range supports integration with 3.3 V-class RF systems, while 18 mA typical current and 1 µA standby current provide useful power-management checkpoints. The exact standby-state behavior must be checked in the datasheet, especially if the module wakes frequently. Place bypass capacitors close to the supply pins and isolate the synthesizer supply from switching nodes to reduce modulation and phase-noise coupling.
推荐
Battery-Powered RF Terminal
The SI4113-BT can support a battery-powered RF terminal when the system can tolerate the synthesizer’s 18 mA typical operating current and benefits from its 1 µA standby mode. The low-power state is useful during inactive intervals, but total battery life depends on the RF output state, reference clock, regulator efficiency, and transmit duty cycle. Verify wake-up time and whether the synthesizer can remain powered while other system blocks are disabled. Use a low-noise supply path and avoid routing the RF outputs beside high-current switching circuitry.
推荐
RF Test and Measurement Equipment
The SI4113-BT is appropriate for laboratory and production test equipment that requires programmable RF synthesis in a compact 24-TSSOP implementation. The dual-band capability and RF1/RF2 outputs can simplify multi-channel fixture design when the required frequencies are supported. For measurement accuracy, isolate the synthesizer from high-level RF leakage, use controlled-impedance interconnects, and verify output amplitude and harmonic performance. The verified listing reports -26 dBc harmonic suppression, but measurement bandwidth, reference conditions, and output settings must be taken from the complete datasheet.
推荐
Industrial Wireless Sensor
An industrial wireless sensor can use the SI4113-BT when its radio requires stable local RF synthesis and the system operates within the 2.7 V to 3.6 V supply range. Integrated VCOs and loop filters help reduce the external RF-component count in space-constrained sensor assemblies. However, the synthesizer’s 18 mA typical current can dominate a low-duty-cycle sensor power budget, so power-gating and operating-mode strategy should be evaluated carefully. Keep the reference oscillator and supply regulator isolated from sensor ADC and digital timing domains.
推荐
推荐产品汇总
工程参考数据： SI4113-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 | SI4136-BT | SI4113-D-GT | SI4123-D-GT |
|---|---|---|---|---|
| Product Type | Dual-band RF frequency synthesizer IC | Frequency synthesizer; related device | Clock generator / RF synthesizer | Clock generator / frequency synthesizer / PLL |
| Package | 24-TSSOP | 24-TSSOP | 24-TSSOP | 24-TSSOP |
| Brand | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
关键差异点
- Dual-band RF synthesis with two named RF outputs （对比 SI4113-D-GT)
- Higher documented maximum operating frequency （对比 SI4136-BT)
- Explicit low-power operating specification （对比 SI4123-D-GT)
设计说明
Design the SI4113-BT supply rail for the verified 2.7 V to 3.6 V operating range and the 18 mA typical supply current. Place local bypass capacitors close to the supply and ground pins, and use a low-impedance regulator path to avoid RF phase-noise modulation. Keep switching-regulator outputs and high-current digital nets away from the reference and RF return paths. Because the verified data does not specify maximum transient current or startup sequencing, confirm those limits in the manufacturer datasheet before finalizing power capacity.
Route RF1 and RF2 as controlled-impedance transmission lines with continuous ground references, short connections, and minimal vias. Keep the reference-clock trace away from RF outputs and switching nodes, and place the synthesizer close to the transceiver RF front end when practical. Use a clean ground partition beneath the RF section and verify return-current continuity across layer transitions. The verified data does not specify the complete recommended land pattern or trace geometry, so use the manufacturer package drawing and reference layout as the controlling sources.
Do not treat a shared TSSOP-24 package as proof of drop-in compatibility. Before substituting SI4136-BT, SI4113-D-GT, or SI4123-D-GT, compare the complete pinout, supply limits, reference-input requirements, programming interface, divider arrangement, RF output functions, power-down behavior, and electrical performance. The supplied cross-reference data confirms related package records but does not quantify all pin-level differences. Validate the replacement on a hardware sample or against manufacturer cross-reference documentation before production release.
合规信息
The verified Mouser listing reports RoHS status as No. REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals declarations were not provided and remain unknown. Confirm current compliance documents with the manufacturer or authorized distributor.
