MK3720B datasheet, PDF - EEWORLD Datasheet

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MK3720B: DescriptionClock Generator, 54MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8; CategoryThe embedded processor and controller Microcontrollers and processors; File Size36KB，6 Pages; ManufacturerIDT (Integrated Device Technology)

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MK3720B Overview

Clock Generator, 54MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8

MK3720B Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Parts packaging code	SOIC
package instruction	SOP, SOP8,.25
Contacts	8
Reach Compliance Code	not_compliant
ECCN code	EAR99
JESD-30 code	R-PDSO-G8
JESD-609 code	e0
length	4.9 mm
Humidity sensitivity level	1
Number of terminals	8
Maximum operating temperature	70 °C
Minimum operating temperature
Maximum output clock frequency	54 MHz
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP8,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	240
power supply	3.3 V
Master clock/crystal nominal frequency	13.5 MHz
Certification status	Not Qualified
Maximum seat height	1.75 mm
Maximum supply voltage	3.45 V
Minimum supply voltage	3.15 V
Nominal supply voltage	3.3 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn85Pb15)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	3.9 mm
uPs/uCs/peripheral integrated circuit type	CLOCK GENERATOR, OTHER
Base Number Matches	1

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MK3720

27 MH

Z AND

54 MH

3.3 V

OLT

VCXO

Description

The MK3720D and MK3720B are drop-in replacements

for the MK3720S and MK3720A devices. Compared to

these earlier devices the MK3720D and MK3720B offer

a wider operating frequency range and improved power

supply noise rejection.

The MK3720 is a low cost, low jitter, high performance

3.3 Volt VCXO designed to replace expensive 13.5, 27,

or 54 MHz VCXOs. 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 ±100

ppm. Using ICS’ patented VCXO and analog/digital

Phase-Locked Loop (PLL) techniques, the device uses

an inexpensive external pullable crystal input to

produce output clocks of 13.5 MHz, 27 MHz, and 54

MHz.

The MK3720D exhibits a moderate VCXO gain of

120ppm/V typical, when used with a high quality

external pullable quartz crystal. The MK3720B offers a

higher VCXO gain of 150ppm/V, similar to the earlier

MK3720A. The higher intrinsic VCXO gain of the

MK3720B may help compensate for the reduced

pullability of a low quality crystal used in some

applications. However, higher VCXO gain may also

increase clock output phase noise.

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.

Features

•

MK3720D and MK3720B are drop-in upgrades to the

earlier MK3720S and MK3720A devices

•

Packaged in 8 pin SOIC

Operating voltage of 3.3 V (±5%)

Output clocks of 54, 27, and 13.5 MHz

Uses an inexpensive 13.500 MHz external crystal

On-chip VCXO (patented) with pull range of 200ppm

(minimum)

•

VCXO tuning voltage of 0 to 3.3V

•

12mA output drive capability at TTL levels

•

Advanced, low power, sub-micron CMOS process

MK3720D is Recommended for New Designs

Block Diagram

VDD

V IN

54 M Hz

1 3 .5 M H z

P u lla b le

C ry s tal

V o lta g e

C o n tro lle d

C ry sta l

O scilla to r

P L L/C lo c k

S yn th e sis

C ircu itry

27 M Hz

1 3 .5 M H z

GND

MDS 3720 F

In tegr ated C ir cu it S yst ems

5 25 Ra ce Str eet, San Jose, C A 95 126

Revision 102301

tel ( 408) 2 95-9 800

www. i c s t. c om

MK3720B Related Products

	MK3720B	MK3720BTR	MK3720DTR	MK3720D
Description	Clock Generator, 54MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8	Clock Generator, 54MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8	Clock Generator, 54MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8	Clock Generator, 54MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8
Is it lead-free?	Contains lead	Contains lead	Contains lead	Contains lead
Is it Rohs certified?	incompatible	incompatible	incompatible	incompatible
Parts packaging code	SOIC	SOIC	SOIC	SOIC
package instruction	SOP, SOP8,.25	SOP, SOP8,.25	SOP, SOP8,.25	SOP, SOP8,.25
Contacts	8	8	8	8
Reach Compliance Code	not_compliant	not_compliant	not_compliant	not_compliant
ECCN code	EAR99	EAR99	EAR99	EAR99
JESD-30 code	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8
JESD-609 code	e0	e0	e0	e0
length	4.9 mm	4.9 mm	4.9 mm	4.9 mm
Humidity sensitivity level	1	1	1	1
Number of terminals	8	8	8	8
Maximum operating temperature	70 °C	70 °C	70 °C	70 °C
Maximum output clock frequency	54 MHz	54 MHz	54 MHz	54 MHz
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	SOP	SOP	SOP
Encapsulate equivalent code	SOP8,.25	SOP8,.25	SOP8,.25	SOP8,.25
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	240	240	240	240
power supply	3.3 V	3.3 V	3.3 V	3.3 V
Master clock/crystal nominal frequency	13.5 MHz	13.5 MHz	13.5 MHz	13.5 MHz
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.75 mm	1.75 mm	1.75 mm	1.75 mm
Maximum supply voltage	3.45 V	3.45 V	3.45 V	3.45 V
Minimum supply voltage	3.15 V	3.15 V	3.15 V	3.15 V
Nominal supply voltage	3.3 V	3.3 V	3.3 V	3.3 V
surface mount	YES	YES	YES	YES
technology	CMOS	CMOS	CMOS	CMOS
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal surface	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	1.27 mm	1.27 mm	1.27 mm	1.27 mm
Terminal location	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	30	30	30	30
width	3.9 mm	3.9 mm	3.9 mm	3.9 mm
uPs/uCs/peripheral integrated circuit type	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER

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