MK3721D

Series: -
Output: CMOS
Number of Circuits: 1
Differential - Input:Output: No/No
Mounting Type: Surface Mount
Divider/Multiplier: No/No
Packaging: Tube
Ratio - Input:Output: 2:1
Voltage - Supply: 3.15 V ~ 3.45 V
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package: 8-SOIC
Operating Temperature: 0°C ~ 70°C
PLL: No
Input: Crystal
Manufacturer: IDT, Integrated Device Technology Inc
Type: Voltage Controlled Crystal Oscillator (VCXO)
Frequency - Max: 28MHz


Specifications

Temperature C Voltage 5.0 V Package SOIC 8 Speed NA


Description

LOW COST 16.2 TO 28MHZ 3.
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 MK3721D 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 IDT's patented VCXO techniques, the MK3721D 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.

IDT of MK3721D manufactures the largest variety of Set-Top Box and multimedia clock synthesizers for all applications. If more clock outputs are needed, see the MK3732 or MK377x family of parts. Consult IDT to eliminate VCXOs, crystals, and oscillators from your board.

The frequency of the on-chip VCXO of MK3721D is adjusted by an external control voltage input into pin VIN. Because VIN is a high-impedance input, it can be driven directly from a PWM RC integrator circuit. Frequency output increases with VIN voltage input. The usable range of VIN is 0 to 3.3 V.

MK3721D 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 between 1 MHz and 8 MHz, use the MK3713D. For higher than 28 MHz, use the MK3732-05.

Available in lead (Pb) free package

Parameters:

Technical/Catalog Information	MK3721D
Vendor	IDT, Integrated Device Technology Inc
Category	Integrated Circuits (ICs)
Type	Voltage Controlled Crystal Oscillator (VCXO)
Voltage - Supply	3.15 V ~ 3.45 V
Number of Outputs	1
Input	Crystal
Output	CMOS
Frequency-Max	28MHz
Package / Case	8-SOIC
Packaging	Tube
Operating Temperature	0°C ~ 70°C
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	MK3721D MK3721D