MK3727STR

Overview

The MK3727STR is a Voltage Controlled Crystal Oscillator (VCXO) manufactured by Renesas Electronics Corporation. It operates within a frequency range of 24 MHz to 36 MHz and utilizes an external pullable crystal input, typically 13.5 MHz, to generate the output clock. The device features a CMOS output format and requires a supply voltage between 3.15 V and 3.45 V. It is housed in an 8-SOIC surface-mount package with dimensions of 4.9 mm x 3.9 mm x 1.5 mm. The component supports an operating temperature range from 0°C to +70°C and offers a frequency stability of 115 PPM.

Feature Summary

• Integrated VCXO with PLL technology for low-cost clock synthesis
• Frequency range of 24 MHz to 36 MHz using fundamental mode crystals
• CMOS output format with low-drive stage to reduce EMI
• Tuning voltage input range of 0V to 3.3V

Applications

• Set-top box clock generation
• Multimedia system timing
• General-purpose clock synthesizer replacement

Procurement Notes

The MK3727STR is listed as obsolete or end-of-life by the manufacturer. Availability is restricted, and distributors may not stock this item. Verification of current lifecycle status and alternative sourcing channels is required before procurement planning.

Selection Notes

Select the MK3727STR when a low-cost VCXO solution is needed for frequencies between 24 MHz and 36 MHz. Ensure the design accommodates an external pullable crystal and provides a 0-3.3V control voltage input. Verify that the 8-SOIC package fits the PCB layout constraints.

Part Context

This part belongs to the MK3727 family of VCXOs. Variants such as MK3727DLF and MK3727H share similar functionalities but may differ in packaging, specific frequency ranges, or drive characteristics. The 'STR' suffix typically indicates a tape-and-reel packaging configuration.

Replacement Considerations

Due to the obsolete status, direct replacements are limited. Consider evaluating other parts within the MK3727 family or consulting the manufacturer for recommended alternatives. Cross-reference with similar VCXOs from other vendors if pin compatibility is not critical.