MK1709SLF

Overview

The MK1709SLF is a low electromagnetic interference (EMI) clock generator manufactured by Renesas Electronics Corporation. Designed primarily for flat panel graphics controllers, it generates a dithered output clock from a high-speed input to spread the frequency spectrum and reduce amplitude peaks. The device operates at an ambient temperature of up to +85°C and requires a 3.3 V supply voltage. It utilizes a proprietary mix of analog and digital Phase Locked Loop (PLL) technology to achieve typical peak reductions of 7dB to 14dB on odd harmonics ranging from the 3rd to the 19th. The component supports VGA modes with frequencies between 40 MHz and 167 MHz.

Feature Summary

• Generates low EMI output clock via centered spread spectrum dithering
• Reduces frequency amplitude peaks by 7dB - 14dB on 3rd - 19th odd harmonics
• Operates on a single 3.3 V power supply
• Supports LCD interface clocks for flat panel graphics controllers

Applications

• Flat panel graphics controllers
• LCD interface clock generation
• VGA mode signal processing (40 MHz to 167 MHz)

Part Context

The MK1709 belongs to a family of clock generators designed to eliminate external crystals and oscillators from printed circuit boards. While the standard MK1709 accepts a high-speed clock input, related variants such as the MK1714-01/02 are available for applications requiring crystal input or wider multiplier selections. The SLF suffix typically denotes specific packaging or lead finish variations within the product line.

Replacement Considerations

For designs requiring crystal input instead of a high-speed clock input, the MK1714-01 or MK1714-02 may serve as functional alternatives. Designers should verify pin compatibility and electrical specifications against the specific variant datasheet before substitution.