MK3720DLFTR

Overview

The MK3720DLFTR is a Voltage Controlled Crystal Oscillator (VCXO) IC manufactured by Renesas Electronics Corporation. It operates at a maximum frequency of 54MHz with a single circuit configuration. The device accepts a crystal input and provides a CMOS output, featuring an input-to-output ratio of 2:3 without differential signaling or internal dividers/multipliers. It functions within a supply voltage range of 3.15V to 3.45V and supports an operating temperature range of 0°C to 70°C. The component is housed in an 8-SOIC package with a width of 3.90mm and is supplied in tape and reel packaging.

Feature Summary

• Voltage Controlled Crystal Oscillator (VCXO) IC with 54MHz maximum frequency
• CMOS output type with crystal input and 2:3 input-to-output ratio
• Operates on 3.15V to 3.45V supply voltage within 0°C to 70°C temperature range
• Available in 8-SOIC (0.154" width) surface mount package

Applications

• Digital Television (DTV) systems
• Set-top box applications
• Clock generation circuits requiring voltage-controlled frequency adjustment

Procurement Notes

Verify the current lifecycle status of the MK3720DLFTR, as distributor records indicate it may be obsolete or end-of-life. Confirm availability through authorized channels, noting that standard factory packaging quantities are listed as 2,500 units. Ensure compliance with RoHS directives and check for any specific product change notices affecting recent production batches before procurement.

Selection Notes

Select this component when a fixed-frequency VCXO near 54MHz is required for DTV or set-top box designs. The 8-SOIC package suits space-constrained surface mount layouts. Verify that the system power supply remains strictly within the 3.15V to 3.45V range to ensure proper operation. Consider thermal constraints if the ambient temperature exceeds 70°C, as this part is not rated for industrial or extended temperature ranges.

Part Context

The MK3720DLFTR belongs to the MK3720 series of clock synthesizers and jitter cleaners from Renesas. It is functionally related to variants like the MK3720DTR, which shares similar specifications but may differ in packaging or testing standards. The device utilizes analog Phase-Locked Loop (PLL) techniques to generate stable clock signals from an external fundamental mode crystal.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate other members of the MK3720 family or comparable Renesas VCXO devices with matching 54MHz frequency and 8-SOIC footprint requirements.