MK2705SLF - 24.576MHz Audio Clock Source | Renesas | SOIC-8
料号： MK2705SLF ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.6413 | $3.64 |
| 10 | $3.6413 | $36.41 |
| 100 | $3.6413 | $364.13 |
| 500 | $3.6413 | $1,820.65 |
| 1,000 | $3.6413 | $3,641.30 |
MK2705SLF 概述
An audio clock source is a specialized clock-and-timing IC within the broader integrated-circuit hierarchy. In digital audio equipment, clocks establish the timing reference used to sample and process audio data. The MK2705SLF combines clock-generation functions with an 8-SOIC package, making it suitable for compact consumer and industrial audio assemblies where a stable reference clock is required.
The MK2705 provides one output at 24.576 MHz and supports either MPEG-stream-derived clock generation or standalone operation using a 27 MHz crystal. According to the Renesas MK2705 datasheet, its PLL-based architecture is designed to provide good phase noise and long-term jitter characteristics. The fixed 24.576 MHz frequency is particularly relevant to audio sampling-clock requirements and clock distribution in digital audio equipment.
Typical uses include MPEG audio source equipment, digital audio processing boards, audio converter clocking, digital recording interfaces, and embedded audio systems. The single-output arrangement is appropriate where one derived audio reference is sufficient. Designers should confirm output format, supply requirements, crystal support, and timing margins against the datasheet before committing the circuit to production.
A key implementation consideration is that the source mode and external support network must match the intended clock architecture. Use the manufacturer recommended crystal and load-capacitor arrangement when operating standalone, and account for PLL lock and jitter requirements in the receiving audio subsystem. PCB layout should keep the oscillator path short and isolate clock routing from noisy digital and power-conversion nodes.
This page combines verified manufacturer and distributor information with application guidance, package details, and practical replacement considerations. It supplements the Renesas datasheet and distributor listings with engineering context for clock-source selection, layout, sourcing, and same-footprint replacement evaluation.
直接替换替代料： MK2705SLF ——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： MK2705SLF （相同外形与封装尺寸） ——差异在于 Product Type, Package.
快速对比工具——选择替代料号进行并排对比：
MK2705SLFTR
✅ 直接替换📋 参考替代料（不在目录中）
MK2705SLF 规格参数
| Product Type | Audio clock source IC |
| Clock Generator Type | PLL-based synchronous audio clock generator |
| Nominal Output Frequency | 24.576 MHz |
| Output Count | 1 output |
| Standalone Clock Input | 27 MHz crystal |
| MPEG Clock Source Support | Yes |
| 封装 | 8-SOIC |
| 安装类型 | Surface mount |
| Lead Pitch | 0.15 inch |
| AEC-Q100 Qualification | not_applicable |
MK2705SLF 8-soic 引脚配置指南
MK2705SLF（8-soic 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： MK2705SLF.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MK2705SLF 适用于 6 应用s: MPEG Audio Source Equipment, Digital Audio Converter Clocking, Standalone Crystal Clock Reference, Digital Audio Processing Boards, Audio Recording and Capture Interfaces, Consumer Audio Product Clocks.
MPEG Audio Source Equipment
The MK2705SLF fits MPEG audio equipment that needs a dedicated 24.576 MHz sampling-clock reference derived from the source stream. According to the Renesas MK2705 datasheet, the device provides synchronous clock generation for MPEG-derived audio sampling rates, and its PLL technology is intended to provide good phase noise and long-term jitter characteristics. Place the IC where the recovered MPEG timing information can reach its clock-generation inputs, then route the resulting 24.576 MHz reference to the relevant converter or processing logic. This integration reduces the need for a separate fixed oscillator when stream-derived clocking is required. Validate acquisition time and loop stability in the final transport, because the supplied data does not provide detailed jitter or phase-noise figures.
推荐
Digital Audio Converter Clocking
The MK2705SLF is appropriate for digital converter clocking where the system needs a low-jitter 24.576 MHz reference close to the audio signal chain. Its single output is intended for a defined audio timing domain, and the PLL-based architecture supports good phase noise and long-term jitter characteristics according to the Renesas MK2705 datasheet. Use the clock to synchronize an ADC, DAC, or digital audio processor, and keep the route short and isolated from switching regulators and digital return currents. The practical benefit is application-specific clock generation in an 8-SOIC package rather than a generic fixed oscillator. Before layout release, confirm the converter's required clock polarity, jitter tolerance, and acquisition behavior in the applicable device documentation.
推荐
Standalone Crystal Clock Reference
The MK2705SLF can serve as a standalone clock source when a 27 MHz crystal is used rather than deriving timing from an MPEG stream. This operating mode is useful in audio subsystems that need a stable local reference but do not receive a usable timing stream from the source. Follow the manufacturer's crystal circuit and grounding guidance, and place the crystal and load components close to the IC to minimize stray capacitance and pickup. The resulting 24.576 MHz output serves as the system's audio timing reference. Because the verified data does not specify startup time, frequency tolerance, or jitter limits, validate those parameters against the Renesas datasheet and the receiving converter before production.
推荐
Digital Audio Processing Boards
A digital audio processing board can use the MK2705SLF when it must derive a 24.576 MHz reference from MPEG timing or maintain a local audio clock through PLL multiplication of a 27 MHz crystal. This architecture is useful in playback, recording, and interface modules where downstream DSPs, memory, and converters require a common clock domain. The 8-SOIC footprint supports compact assembly, while the single output keeps the architecture straightforward for one primary audio timing net. Route the clock as a controlled transmission line if its length or topology requires it, and provide a solid ground reference. Do not distribute the output indiscriminately; use a clock buffer when fanout exceeds the device's verified drive capability.
推荐
Audio Recording and Capture Interfaces
The MK2705SLF is suitable for recording interfaces that need a deterministic audio reference across an ADC and associated digital circuitry. Its 24.576 MHz output and PLL-based clock generation provide a focused timing solution for sampling systems, while the option to use a 27 MHz crystal supports standalone operation when no upstream MPEG timing is available. Place the clock source near the master-clock-consuming converter, observe the datasheet's recommended decoupling, and avoid sharing high-current return paths with the oscillator network. The single output should feed the primary clock domain; additional loads may require a separate buffer. Verify input frequency range, clock amplitude, and acquisition timing against both the Renesas device and the selected audio converter.
推荐
Consumer Audio Product Clocks
The MK2705SLF suits compact consumer audio products where a dedicated MPEG-derived clock can simplify synchronization between source logic and converters. Its 24.576 MHz single-output implementation and 8-SOIC package provide a focused solution for one audio clock domain without adopting a larger synthesizer. The PLL architecture is designed to support good phase noise and long-term jitter characteristics, which matters when clock quality affects conversion fidelity or playback synchronization. Designers should still evaluate startup time and clock availability during mode transitions using the manufacturer datasheet. In a cost-sensitive product, compare the MK2705SLF against a discrete oscillator only after accounting for MPEG timing requirements and the need for stable clock-domain management.
推荐
推荐产品汇总
工程参考数据： MK2705SLF ——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 | MK2705SLFTR | MK2705SLF |
|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Nominal Output Frequency | 24.576 MHz | 24.576 MHz | 24.576 MHz |
| Output Count | 1 output | 1 output | 1 output |
| Standalone Clock Source | 27 MHz crystal | 27 MHz crystal | 27 MHz crystal |
| MPEG-Derived Clocking | Supported | Supported | Supported |
| Clock Architecture | PLL-based | PLL-based | PLL-based |
| Phase Noise and Jitter | Good phase noise and long-term jitter characteristics; numerical values not provided | Same MK2705 device; numerical values not provided | Same MK2705 device; numerical values not provided |
| Ordering Presentation | MK2705SLF | Tape-and-reel ordering code | Base ordering code |
关键差异点
- Provides an application-specific 24.576 MHz audio clock source （对比 Generic crystal oscillator)
- Supports both stream-derived and standalone clock architectures （对比 Standalone fixed-frequency oscillator)
- PLL-based timing architecture （对比 Non-PLL clock source)
设计说明
Keep the 27 MHz crystal, load network, and MK2705SLF oscillator pins close together. Use the shortest practical traces, a continuous ground reference, and the crystal configuration specified by Renesas. Route the 24.576 MHz clock away from switching-regulator loops, high-current digital returns, and display or communications circuitry. If the clock reaches multiple loads, use a suitable clock buffer rather than creating an uncontrolled high-impedance stub.
Confirm the required clock format, frequency tolerance, amplitude, phase-noise requirement, and jitter limit before finalizing the source arrangement. The verified data confirms a 24.576 MHz output and states that the PLL technology provides good phase noise and long-term jitter characteristics, but it does not provide numerical limits. Compare the receiving ADC, DAC, or processor requirements directly against the Renesas datasheet and system clock topology.
Follow the datasheet's decoupling and grounding recommendations when applying the MK2705SLF. Place input and output bypass capacitors at the supply pins with short connections, and separate sensitive oscillator returns from switching-node currents where the layout permits. Supply-voltage values were not included in the verified data, so do not infer the operating rail from the 24.576 MHz output frequency. Verify startup, sequencing, and current consumption in the official Renesas documentation.
合规信息
The verified data does not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is marked not applicable because this is a clock-and-timing IC, not an automotive-qualified device in the supplied evidence.