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MK3721, MK3721DLFTR, MK3722

Table of contents:
Info of MK3721
Info of MK3721DLFTR
Info of MK3722

MK3721, MK3721DLFTR, MK3722 Selling Leads, Datasheet

MFG:IDT, Integrated Device Technology Inc Category:Integrated Circuits (ICs) Package Cooled:SOP8 D/C:0544+

MK3721, MK3721DLFTR, MK3722 Datasheet download

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Part Number: MK3721DLFTR

Category: Integrated Circuits (ICs)

MFG: IDT, Integrated Device Technology Inc

Package Cooled: SOP8

D/C: 0544+

Description: IC VCXO 16.2-28MHZ 3.3V 8-SOIC

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MK3721 General Description

The MK3721 is ICS/MicroClock's lowest cost, low jitter, high performance 3.3 volt VCXO designed to replace expensive VCXO 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/MicroClock's patented VCXO techniques, the device uses an inexpensive external pullable crystal in the range of 16.2 - 28 MHz to produce a VCXO output clock at that same frequency.

ICS/MicroClock 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 ICS/MicroClock to eliminate VCXOs, crystals and oscillators from your board.

MK3721 Maximum Ratings

Parameter	Conditions	Minimum	Typical	Maximum	Units
Supply Voltage, VDD	Referenced to GND			7	V
Inputs	Referenced to GND	-0.5		VDD+0.5V	V
Ambient Operating Temperature		0		70
Soldering Temperature	Max of 10 seconds			260
Storage temperature		-65		150

MK3721 Features

• Packaged in 8 pin SOIC
• 3.3 V operating voltage
• 16.2 MHz to 28 MHz operation
• Uses an inexpensive external crystal
• On-chip VCXO (patented) with pull range of 200 ppm (minimum)
• VCXO tuning voltage of 0 to 3.3 V
• 12 mA output drive capability at TTL levels
• Advanced, low power, sub-micron CMOS process
• For frequencies between 8 MHz to 16 MHz, use the MK3711A. For frequencies between 1 MHz and 8 MHz, use the MK3713. For higher than 28 MHz, use the MK3732-05

MK3721 Connection Diagram

MK3721DLFTR Parameters

Technical/Catalog Information	MK3721DLFTR
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	Tape & Reel (TR)
Operating Temperature	0°C ~ 70°C
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	MK3721DLFTR MK3721DLFTR 800 1878 2 ND 80018782ND 800-1878-2

MK3721DLFTR General 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 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 IDT's 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.

IDT 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 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 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

MK3721DLFTR Maximum Ratings

Temperature C Voltage 5.0 V Package SOIC 8 Speed NA

MK3722 General Description

The MK3722 is a low cost, low jitter, high performance VCXO and PLL clock synthesizer designed to replace expensive discrete VCXOs and multipliers. The patented on-chip Voltage Controlled Crystal Oscillator accepts a 0 to 3.3 V input voltage to cause the output clocks to vary by ±115 ppm. Using ICS' analog/digital Phase-Locked Loop (PLL) techniques, the device uses an inexpensive 27 MHz pullable crystal input to produce a reference output and a selectable audio clock.

ICS manufactures the largest variety of VCXO based timing devices for all applications. Consult ICS to eliminate VCXOs, crystals, and oscillators from your board.

The frequency of the on-chip VCXO is adjusted by an external control voltage connected to VIN. Because VIN is a high impedance input, it can be driven directly from an PWM RC integrator circuit.

MK3722 Maximum Ratings

Stresses above the ratings listed below can cause permanent damage to the MK3722. These ratings, which are standard values for ICS commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical parameters are guaranteed only over the recommended operating temperature range.

Item	Rating
Supply Voltage, VDD	7 V
All Inputs and Outputs	-0.5 V to VDD+0.5 V
Ambient Operating Temperature	0 to +70
Storage Temperature	-65 to +150
Soldering Temperature	260

MK3722 Features

• Packaged in 16 pin TSSOP
• Replaces a VCXO and oscillator
• Operating voltage of 3.3V
• Provides output of 27 MHz plus audio clock
• Uses an inexpensive 27 MHz pullable crystal
• On-chip patented VCXO with pull range of 230 ppm (minimum)
• VCXO tuning voltage of 0 to 3.3 V
• Advanced, low power, sub-micron CMOS process

MK3722 Connection Diagram

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