SI5340B-B-GM - 350MHz 4-Output Ultra-Low-Jitter Clock Generator
料号： SI5340B-B-GM ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $15.6676 | $15.67 |
| 10 | $15.6676 | $156.68 |
| 100 | $15.6676 | $1,566.76 |
| 500 | $15.6676 | $7,833.80 |
| 1,000 | $15.6676 | $15,667.60 |
SI5340B-B-GM 概述
A clock generator is an integrated timing device that accepts one or more reference inputs and produces multiple synchronized or independently synthesized output clocks. Clock generators are part of the broader clock-and-timing IC hierarchy, alongside PLLs, dividers, buffers, jitter cleaners, and oscillators. They simplify designs requiring multiple related frequencies while reducing the number of separate clock sources and distribution components.
Key features of the SI5340B-B-GM include four outputs, operation up to 350 MHz, integer and fractional synthesis modes, four reference inputs, and low phase jitter of 0.09 ps. These characteristics suit communication infrastructure, network equipment, servers, test and measurement systems, and high-speed digital systems. The product family is described by Skyworks as an ultra-low-jitter, any-frequency, any-output generator designed for exacting performance requirements.
The device architecture combines clock synthesis and distribution functions, allowing multiple output frequencies to be generated from selected references. This supports clock trees that require deterministic phase relationships and low noise. A 350 MHz maximum output enables the part to address high-speed interfaces and processor-related timing needs, although the actual usable frequency depends on configuration, reference input, output divider settings, and device specifications.
Typical applications include networking and telecom line cards, data-conversion systems, optical transport equipment, FPGA clock trees, server timing, and high-end instrumentation. For these systems, the 0.09 ps phase-jitter figure can help preserve timing margin where reference-clock quality and downstream receiver requirements are stringent. The four-output architecture also allows clock distribution to multiple circuit blocks without using four unrelated oscillators.
PCB design should preserve short, controlled-impedance clock routes, provide clean return paths, and keep sensitive clock inputs away from noisy power and switching nodes. The exposed thermal pad requires proper thermal design and a low-impedance connection to ground. Decoupling and layout recommendations must be confirmed against the current manufacturer datasheet and reference design.
This page consolidates the verified manufacturer and distributor information, package details, application guidance, cross-reference findings, and practical engineering notes for the SI5340B-B-GM. It is intended to support clock-tree design, source comparison, procurement evaluation, and PCB implementation for timing-sensitive electronic systems.
直接替换替代料： SI5340B-B-GM ——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： SI5340B-B-GM （相同外形与封装尺寸） ——差异在于 Maximum Output Frequency, Number of Outputs, Number of Reference Inputs, Package, Product Type.
快速对比工具——选择替代料号进行并排对比：
SI5340B-D-GM
✅ 直接替换📋 参考替代料（不在目录中）
SI5340B-B06217-GMR
✅ 直接替换📋 参考替代料（不在目录中）
SI5340B-D08019-GM
✅ 直接替换📋 参考替代料（不在目录中）
SI5340B-D12830-GM
✅ 直接替换📋 参考替代料（不在目录中）
SI5340B-B-GM 规格参数
| Product Type | Ultra-low-jitter clock generator |
| 输出数量 | 4 outputs |
| Maximum Output Frequency | 350 MHz |
| Phase Jitter | 0.09 ps |
| Number of Reference Inputs | 4 reference inputs |
| Frequency Synthesis Modes | Integer and fractional frequency synthesis |
| Frequency Range | Any-frequency, below 350 MHz |
| Logic Family | High-performance clock and timing IC |
| Technology | MultiSynth technology |
| 封装 | 44-pin VFQFN with exposed pad |
| 安装类型 | Surface mount |
| RoHS 状态 | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
| Lead-Free Status | unknown |
| Clock Output Type | Clock outputs |
SI5340B-B-GM 44-pin vfqfn with exposed pad 引脚配置指南
SI5340B-B-GM（44-pin vfqfn with exposed pad 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： SI5340B-B-GM.
请参阅 数据手册 以查看完整引脚配置。
典型应用
SI5340B-B-GM 适用于 6 应用s: Networking and Telecom Clock Trees, Optical Transport and Data Conversion, FPGA and Processor Timing, Server and Storage Systems, Test and Measurement Instrumentation, Industrial Control and Automation.
Networking and Telecom Clock Trees
The SI5340B-B-GM fits communication equipment that needs several low-jitter clocks from a controlled timing architecture. Its four outputs can distribute related clocks across line cards, transceivers, converters, and digital controllers, while four reference inputs provide selection and redundancy options. The 350 MHz class supports high-speed digital timing, and 0.09 ps phase jitter helps preserve margin where clock quality affects throughput. The key design check is reference-clock integrity, because the device cannot exceed the quality of the reference and output configuration.
推荐
Optical Transport and Data Conversion
The SI5340B-B-GM is suitable for optical transport modules and high-speed data-conversion equipment requiring deterministic clock relationships. Four independently configured outputs can serve serializers, deserializers, ADC or DAC clocking blocks, and digital control logic. Operation below 350 MHz provides a suitable clock range for many interface subsystems, while the 0.09 ps phase-jitter figure supports low-noise timing budgets. Designers should verify output amplitude, supply voltage, reference format, and jitter at the actual operating frequency before layout release.
推荐
FPGA and Processor Timing
The SI5340B-B-GM can provide multiple synchronized clocks to FPGA, processor, and accelerator platforms that need controlled reference distribution. The four-output architecture reduces reliance on separate oscillators, and the integer or fractional synthesis modes support clocks derived from selected references. A frequency below 350 MHz is appropriate for many digital fabric, memory, serial, and peripheral clock domains. The engineer must confirm the target device’s clock-input standards, allowed jitter, crossing constraints, and reset sequencing before substituting the generator.
推荐
Server and Storage Systems
The SI5340B-B-GM is applicable in server, storage, and accelerator systems where multiple clock domains must be generated from disciplined references. Four outputs can support processor, memory, fabric, and interface clock trees, while the low 0.09 ps phase jitter is relevant to high-speed timing margins. The device can simplify synchronization compared with several unrelated clock sources, but system architects must verify reference redundancy, frequency-plan accuracy, startup behavior, and power-supply sequencing. It is especially appropriate where deterministic phase relationships matter more than simple clock replication.
推荐
Test and Measurement Instrumentation
The SI5340B-B-GM can supply multiple low-jitter clocks for instrumentation, automated test equipment, and high-resolution signal-processing systems. Its four outputs support parallel clocking of converters, acquisition circuits, counters, and control blocks, while integer and fractional synthesis provides flexibility in generating required frequencies. The 350 MHz maximum output can serve fast data paths and timing references. For instrument-grade performance, the reference oscillator, distribution loss, output jitter, deterministic latency, and calibration plan must be evaluated together rather than relying only on the nominal phase-jitter figure.
推荐
Industrial Control and Automation
The SI5340B-B-GM is appropriate for industrial automation systems that distribute precise timing to controllers, sensors, data loggers, and synchronized acquisition blocks. Four reference inputs support multiple source options, and four outputs allow a single synthesis device to organize related clock domains. The low-jitter architecture can help maintain predictable timing in systems combining high-speed digital processing with sensors and actuators. Industrial designs should verify supply tolerance, temperature range, reference startup behavior, grounding, and isolation requirements, none of which can be inferred from the verified web snippets.
推荐
推荐产品汇总
工程参考数据： SI5340B-B-GM ——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 | SI5340B-D-GM | SI5340B-B06217-GMR | SI5340B-D08019-GM | SI5340B-D12830-GM |
|---|---|---|---|---|---|
| Brand | Skyworks Solutions | Skyworks Solutions | Skyworks Solutions | Skyworks Solutions | Skyworks Solutions |
| Package | 44-pin VFQFN with exposed pad | 44-pin VFQFN with exposed pad | 44-pin VFQFN with exposed pad | 44-pin VFQFN with exposed pad | 44-pin VFQFN with exposed pad |
关键差异点
- Four-output clock architecture （对比 SI5340B-D08019-GM)
- Low stated phase jitter （对比 SI5340B-D-GM)
- Integer and fractional synthesis support （对比 SI5340B-D12830-GM)
- 350 MHz maximum output frequency （对比 SI5340B-B06217-GMR)
设计说明
Keep reference and clock traces short, continuous, and surrounded by a continuous ground reference where the package and board stackup permit. Avoid routing high-speed clock nets beneath noisy digital or power-conversion areas. The exact trace geometry should be derived from the target impedance, loss budget, and connector or destination requirements. Because the supplied data does not include the complete pin table or board-layout reference, use the current Skyworks design documentation rather than copying an unverified example.
The 44-pin VFQFN uses an exposed pad, so the thermal path is part of the electrical and mechanical design. Provide a low-impedance connection from the pad to the ground plane and follow the manufacturer’s land pattern and thermal-via recommendations. A thermal estimate cannot be produced from the supplied snippets because board area, copper thickness, airflow, supply voltage, and dissipation are not available. Validate temperature rise on the assembled PCB under maximum clock activity and worst-case ambient conditions.
Preserve clock-edge quality by minimizing discontinuities, excessive stubs, and unnecessary layer transitions. Match clock and reference networks to the intended impedance, and keep input/output return paths clear of switching nodes. The 0.09 ps phase-jitter figure is a source property, not a guarantee of system jitter; source oscillator noise, divider settings, supply noise, loss, and crosstalk must also be included in the end-to-end budget. Validate outputs with the final reference clock and enclosure or board environment.
Do not treat SI5340B-B-GM, SI5340B-D-GM, and frequency-coded Si5340B variants as automatically interchangeable. Their order codes can identify different frequency plans or device options, and the supplied web data does not prove complete pin compatibility. Before substitution, compare the pin table, supply voltage, reference-input requirements, output configuration, jitter specification, exposed-pad connection, and lifecycle status against the current manufacturer datasheet.
合规信息
The supplied verified web data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for SI5340B-B-GM. Compliance must be confirmed from the current manufacturer product documentation or supplier certificates.
