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MK3721 - LOW COST 16.2 TO 28 MHZ 3.3 VOLT VCXO

General Description

The MK3721 series of devices includes the original MK3721S and the new MK3721D.

The MK3721D is a drop-in replacement for the MK3721S device.

Compared to the earlier device, the MK3721D offers a wider operating frequency range and improved power supply noise rejection.

Key Features

  • MK3721D is a drop-in replacement for the earlier MK3721S device.
  • Packaged in 8-pin SOIC.
  • Operational frequency range of 16.2 MHz to 28 MHz.
  • Uses an inexpensive external crystal.
  • On-chip patented VCXO with pull range of 200 ppm (minimum).
  • VCXO tuning voltage of 0 to 3.3 V.
  • Operating voltage of 3.3 V.
  • 12 mA output drive capability at TTL levels.
  • Advanced, low-power, sub-micron CMOS process.
  • For frequencies b.

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Datasheet Details

Part number MK3721
Manufacturer IDT
File Size 122.51 KB
Description LOW COST 16.2 TO 28 MHZ 3.3 VOLT VCXO
Datasheet download datasheet MK3721 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LOW COST 16.2 TO 28 MHZ 3.3 VOLT VCXO DATASHEET MK3721 Description The MK3721 series of devices includes the original MK3721S and the new MK3721D. The MK3721D is a drop-in replacement for the MK3721S device. Compared to the earlier device, the MK3721D offers a wider operating frequency range and improved power supply noise rejection. The MK3721 is a low cost, low-jitter, high-performance 3.3 volt VCXO designed to replace expensive discrete VCXOs modules. The on-chip Voltage Controlled Crystal Oscillator accepts a 0 to 3.3 V input voltage to cause the output clocks to vary by ±100 ppm. Using ICS’ patented VCXO techniques, the device uses an inexpensive external pullable crystal in the range of 16.2 to 28 MHz to produce a VCXO output clock at that same frequency.