IDTMK3721DLF IDT, Integrated Device Technology Inc, IDTMK3721DLF Datasheet

IDTMK3721DLF

Manufacturer Part Number

IDTMK3721DLF

Description

Manufacturer

IDT, Integrated Device Technology Inc

Datasheet

1.IDTMK3721DLF.pdf (7 pages)

Specifications of IDTMK3721DLF

Output Level

CMOS

Frequency Stability

±30

Symmetry Max

60%

Operating Supply Voltage (typ)

3.3

Pin Count

Mounting Style

Surface Mount

Screening Level

Commercial

Frequency Tolerance

±20

Product Height (mm)

1.5mm

Product Depth (mm)

3.94mm

Product Length (mm)

4.93mm

Rad Hardened

Package / Case

SOIC N

Lead Free Status / RoHS Status

Compliant

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LOW COST 16.2 TO 28 MHZ 3.3 VOLT VCXO

IDT™ / ICS™ LOW COST 16.2 TO 28 MHZ 3.3 VOLT VCXO

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.

ICS 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 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 an

PWM RC integrator circuit. Frequency output increases

with VIN voltage input. The usable range of VIN is 0 to 3.3

Block Diagram

16.2 to 28 MHz

Pullable

Crystal

VIN

Controlled

Oscillator

Voltage

Crystal

GND

VDD

Features

•

MK3721D is recommended for new designs.

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 a lead-free package

16.2 to 28 MHz Clock

(REFOUT)

MK3721

DATASHEET

MK3721

REV E 103003

Related parts for IDTMK3721DLF

IDTMK3721DLF Summary of contents

Page 1

LOW COST 16 MHZ 3.3 VOLT VCXO 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 ...

Page 2

MK3721 LOW COST 16 MHZ 3.3 VOLT VCXO Pin Assignment ...

Page 3

MK3721 LOW COST 16 MHZ 3.3 VOLT VCXO External Component Selection The MK3721 requires a minimum number of external components for proper operation. Decoupling Capacitors A decoupling capacitor of 0.01µF should be connected between VDD and GND on ...

Page 4

MK3721 LOW COST 16 MHZ 3.3 VOLT VCXO Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the MK3721. These ratings, which are standard values for ICS commercially rated parts, are stress ratings ...

Page 5

MK3721 LOW COST 16 MHZ 3.3 VOLT VCXO DC Electrical Characteristics VDD=3.3V ±5% , Ambient temperature 0 to +70°C, unless stated otherwise Parameter Operating Voltage Output High Voltage Output Low Voltage Output High Voltage (CMOS Level) Operating Supply ...

Page 6

MK3721 LOW COST 16 MHZ 3.3 VOLT VCXO Package Outline and Package Dimensions (8-pin SOIC) Package dimensions are kept current with JEDEC Publication No. 95 Index Area Pin Ordering Information Part / Order ...

Page 7

MK3721 LOW COST 16 MHZ 3.3 VOLT VCXO Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales 800-345-7015 408-284-8200 Fax: 408-284-2775 Corporate Headquarters Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA ...

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