MK2746GLF - 133.33MHz DVD/MPEG Clock Source | Renesas
料号： MK2746GLF ✓ 量产中MK2746GLF 概述
A clock synthesizer is an integrated timing device that accepts or derives timing information and distributes clock signals needed by digital systems. Within the semiconductor hierarchy, a clock synthesizer belongs to clock and timing ICs, alongside clock generators, phase-locked loops, jitter cleaners, dividers, and buffer circuits. The MK2746GLF serves the practical role of producing the timing reference required by multimedia processing chains and other systems that synchronize digital operations.
The principal verified headline specification is a 133.33 MHz clock associated with the DVD/MPEG clock-source function. The 16-TSSOP package provides a compact surface-mount option for consumer electronics, optical-disc systems, set-top equipment, and other timing subsystems. The package data identifies a body width of 4.40 mm, although complete land-pattern dimensions, exposed-pad details, and pin functions require consultation of the manufacturer datasheet.
Its role in a DVD/MPEG system is primarily reference generation. A consistent clock helps coordinate data processing, transport logic, and connected digital subsystems. Unlike a general-purpose microcontroller, the MK2746GLF is dedicated to timing rather than executing application software. Compared with an on-board crystal oscillator and discrete divider network, an integrated clock synthesizer can consolidate clock-generation functions into one package, although final jitter, accuracy, supply range, and output count must be checked against the system timing budget.
Typical deployment positions include DVD and MPEG multimedia clocking, consumer-video timing, set-top-box signal chains, and embedded systems that already specify the MK2746GLF as a reference-source device. In each case, designers should verify frequency tolerance, output topology, power requirements, startup behavior, and decoupling requirements against the exact Renesas documentation before releasing a production layout.
A key integration consideration is that frequency alone does not establish end-to-end timing quality. Board-level supply noise, trace loading, clock-routing topology, output jitter, and grounding directly affect downstream performance. The 16-TSSOP footprint should therefore be treated as a timing-sensitive component placement, with short clock paths, controlled return current, and the power and ground connections specified by the manufacturer followed exactly. This page consolidates verified distributor, manufacturer-linked, package, application, comparison, and design information while clearly identifying parameters that still require confirmation from the complete datasheet.
直接替换替代料： MK2746GLF ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料MK2746GLF 规格参数
| Manufacturer | Renesas Electronics |
| Product Type | DVD/MPEG clock source and clock synthesizer |
| Clock Frequency | 133.33 MHz |
| 封装 | 16-TSSOP |
| Package Width | 4.40 mm |
| 安装类型 | Surface mount |
| 引脚数量 | 16 pins |
MK2746GLF 4.40 mm 引脚配置指南
MK2746GLF（4.40 mm 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： MK2746GLF.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MK2746GLF 适用于 6 应用s: DVD Player Clocking, MPEG Media Processing, Consumer Video Equipment, Set-Top Box Timing, Optical Disc Interface Systems, Legacy Multimedia Timing Blocks.
DVD Player Clocking
The MK2746GLF is directly suited to DVD-player timing because verified product information identifies it as a DVD/MPEG clock source operating at 133.33 MHz. It can serve as the dedicated timing reference for digital media-processing sections that require a predictable clock domain. In such a design, the device should be placed near the clock-consuming logic to minimize trace length and preserve signal integrity. The engineer must still confirm its exact pin functions, input reference requirements, output configuration, supply range, and permitted jitter against the Renesas datasheet before assigning it to the final schematic.
MPEG Media Processing
The 133.33 MHz clock-source function of the MK2746GLF makes it relevant to MPEG media-processing assemblies that coordinate multiple digital functional blocks. Rather than asking a general-purpose controller to distribute timing across the board, an integrated clock synthesizer can provide a purpose-built reference for transport, decoding, and interface stages. Its 16-TSSOP package also supports compact consumer-electronics layouts. Actual deployment depends on matching the required 133.33 MHz domain, output count, and signal polarity to the MPEG subsystem while observing the manufacturer's grounding and decoupling guidance.
Consumer Video Equipment
Consumer-video systems commonly include multiple digital processing chains that must operate from consistent timing references. The MK2746GLF provides a defined 133.33 MHz DVD/MPEG source in a compact 16-TSSOP package, making it a logical candidate for legacy optical-media and multimedia platforms. The timing budget remains system dependent: output jitter, reference accuracy, temperature behavior, and clock-edge quality must be checked from the complete datasheet. PCB placement should keep the clock path short and away from switching power nodes to avoid adding noise to an otherwise fixed-frequency source.
Set-Top Box Timing
A set-top box can use the MK2746GLF where a dedicated 133.33 MHz DVD/MPEG clock source is required by its multimedia pipeline. Integrating that function into a 16-TSSOP timing IC can simplify board partitioning compared with a crystal, oscillator, and separate distribution network. The simplification is meaningful only if the replacement actually supplies the required outputs and meets the receiver's jitter and accuracy limits. Designers should confirm supply sequencing, reference startup, clock-output routing, and no-connect requirements directly from the Renesas pin configuration.
Optical Disc Interface Systems
The MK2746GLF's documented DVD/MPEG clock-source role makes it relevant to optical-disc interface systems that derive timing for digital media blocks. Its identified 133.33 MHz operating point provides a specific reference against which the receiving circuitry can be selected. Placement near the associated clock consumers reduces sensitivity to propagation delay and board coupling, while a continuous ground reference supports predictable signal behavior. Because the supplied evidence does not disclose every electrical characteristic, the final design should verify output drive, jitter, supply tolerance, and maximum operating temperature using the complete manufacturer documentation.
Legacy Multimedia Timing Blocks
Legacy DVD and MPEG electronics can use the MK2746GLF as a dedicated clock source when their timing architecture depends on a 133.33 MHz reference. The 16-TSSOP package accommodates surface-mount assembly in established consumer-electronics boards, and the specialized source function avoids treating a general-purpose clock as an assumed equivalent. Upgrade or repair decisions should compare the complete pinout, supply requirements, output behavior, and timing margins with the original device. This conservative approach avoids treating a similar-looking clock IC as a drop-in replacement without evidence.
工程参考数据： MK2746GLF ——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 |
|---|---|
| Manufacturer | Renesas Electronics |
| Brand | Renesas Electronics |
| Package | 16-TSSOP |
| Package Width | 4.40 mm |
| Primary Clock Frequency | 133.33 MHz |
| Product Function | DVD/MPEG clock source and clock synthesizer |
| Mounting Type | Surface mount |
| Number of Pins | 16 pins |
| Qualified Drop-In Alternatives | No verified candidates supplied |
| Unit Price | Not stated in verified results as of 2026-10-29 |
关键差异点
- Purpose-specific DVD/MPEG clock-source function （对比 Generic crystal oscillator)
- Dedicated timing integration in a 16-TSSOP package （对比 Discrete oscillator with external divider)
- Defined multimedia reference frequency （对比 Unspecified general-purpose clock generator)
设计说明
Treat the 133.33 MHz clock as a high-speed timing signal even though its stated frequency is modest by modern digital standards. Route it over a continuous reference plane, avoid split-plane crossings, minimize stubs and test-point discontinuities, and place the MK2746GLF close to the intended clock consumer. Keep the path away from switching inductors, high-di/dt power loops, and other sources of coupled noise. The verified package data identifies 16-TSSOP construction, but the exact recommended layout and pin roles must be taken from the complete Renesas datasheet.
Confirm the MK2746GLF's permitted supply range, sequencing requirements, and application capacitor values before designing the power subsystem. Place required input and output bypass capacitors at the package pins with short ground returns, following the manufacturer's reference layout rather than a generic decoupling pattern. Because the supplied search results do not contain voltage limits, quiescent current, or startup behavior, a rail cannot be selected from frequency information alone. Verify those values before power sequencing or estimating thermal performance.
Do not substitute the MK2746GLF solely because another 133.33 MHz oscillator or clock generator uses a similar package. A valid drop-in replacement must preserve all 16 terminal functions, input-reference requirements, clock-output topology, supply limits, and timing characteristics. Also do not infer the pinout from the TSSOP package dimensions. Obtain the manufacturer pin configuration and land pattern, compare them line by line with the incumbent circuit, and validate startup, frequency accuracy, and downstream jitter before production use.
合规信息
The supplied verified search results do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred from distributor availability.
