MK3732-10S

Overview

The MK3732-10 is a VCXO and PLL clock synthesizer manufactured by IDT, now part of Renesas Electronics. It integrates a Voltage Controlled Crystal Oscillator with digital PLL circuitry to generate three output clocks from a single pullable crystal input. The device accepts a 0 to 3.3 V tuning voltage to achieve a frequency pull range of ±115 ppm. Operating at 3.3 V, it utilizes an advanced sub-micron CMOS process for low power consumption. The component is housed in a 16-pin SOIC package and supports input frequencies between 16 MHz and 28 MHz.

Feature Summary

• Integrated VCXO with ±115 ppm pull range controlled by 0–3.3 V input
• Generates three output clocks via internal PLL synthesis
• Compatible with inexpensive 16–28 MHz pullable crystals
• Low jitter performance with maximum absolute jitter of ±350 ps

Applications

• MPEG clock synthesis
• Video signal processing
• Audio synchronization systems

Procurement Notes

Verify the manufacturing source, as the component was originally produced by Integrated Device Technology (IDT). Confirm current availability status, noting that non-green variants reached End-of-Life on May 13, 2010. Ensure compliance with RoHS standards if green-compliant versions are required for modern assembly processes.

Selection Notes

Select this component when replacing discrete VCXOs and multipliers to reduce board space. Ensure the design accommodates a 16–28 MHz pullable crystal with specific load capacitance requirements (14 pF). Verify that the application requires a 3.3 V supply and operates within the 0°C to +70°C temperature range.

Part Context

This component belongs to the IDT family of MPEG clock synthesizers. IDT specialized in high-performance timing solutions before being acquired by Renesas Electronics. The MK3732 series was designed to eliminate the need for separate oscillators and VCXOs in consumer electronics and video applications.

Replacement Considerations

Non-green parts ended production on 5/13/10. Green-compliant alternatives include MK3732-10SLF and MK3732-10SLFTR. Check for updated datasheets from Renesas or IDT distributors for pin-compatible replacements if original stock is unavailable.

FAQ

What is the operating voltage range for the MK3732-10?

The recommended operating supply voltage is 3.3 V ±5%, ranging from 3.15 V to 3.45 V.

How is the output frequency pulled in this device?

The frequency is adjusted by applying a control voltage between 0 V and 3.3 V to the VIN pin, allowing a pull range of ±115 ppm.

What type of crystal is required for operation?

A pullable quartz crystal with a frequency between 16 MHz and 28 MHz is required, featuring a load capacitance of 14 pF and specific aging/stability parameters.