MK1707SI

Overview

The MK1707SI is a low EMI clock generator manufactured by IDT, now part of Renesas Electronics. It generates a spread spectrum output clock from a high-speed input to reduce electromagnetic interference in flat panel graphics controllers. The device operates within an industrial temperature range of -40°C to +85°C and supports supply voltages between 3.135 V and 5.5 V. It accepts input frequencies from 80 MHz to 167 MHz and provides a dithered output at the same frequency. The component utilizes analog and digital PLL technology for spectral spreading and is housed in an 8-pin SOIC package.

Feature Summary

• Generates low EMI spread spectrum clocks with peak reduction of 7dB to 14dB on odd harmonics
• Supports centered and down spread profiles selectable via tri-level pins S1, S0, and SD
• Operates over an extended industrial temperature range (-40°C to +85°C)
• Compatible with ATI flat panel controllers for VGA modes from 80 MHz to 167 MHz

Applications

• Dithering LCD interface clocks for flat panel graphics controllers
• EMI reduction in computer peripherals requiring spread spectrum timing
• System designs utilizing VGA modes operating between 80 MHz and 167 MHz

Procurement Notes

Verify that the specific ordering suffix matches the required temperature grade and packaging format. The 'SI' designation indicates the industrial temperature range (-40°C to +85°C). Confirm whether tube or tape-and-reel shipping is needed, as availability may vary based on the specific revision or end-of-life status associated with non-green parts.

Selection Notes

Select the MK1707SI when an industrial temperature rating is required for clock generation applications. Ensure the design accommodates the tri-level configuration pins (S1, S0, SD) to set the desired spread direction and percentage. Verify that the system power-up sequence allows the VDD to stabilize before applying the input clock to ICLK to ensure proper operation.

Part Context

This component belongs to the IDT MK1707 series of low EMI clock generators. The manufacturer Integrated Device Technology (IDT) was acquired by Renesas Electronics Corporation. The 'MK1707SI' variant specifically denotes the industrial temperature grade version packaged in an 8-pin SOIC, distinct from commercial variants like the MK1707SLF.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.