MK1422S datasheet, PDF - EEWORLD Datasheet

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MK1422S: DescriptionClock Generator, 33.868MHz, CMOS, PDSO8, SOIC-8; CategoryThe embedded processor and controller Microcontrollers and processors; File Size43KB，4 Pages; ManufacturerIDT (Integrated Device Technology)

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MK1422S Overview

Clock Generator, 33.868MHz, CMOS, PDSO8, SOIC-8

MK1422S Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	IDT (Integrated Device Technology)
Parts packaging code	SOIC
package instruction	SOP, SOP8,.25
Contacts	8
Reach Compliance Code	unknown
ECCN code	EAR99
JESD-30 code	R-PDSO-G8
JESD-609 code	e0
length	4.9 mm
Number of terminals	8
Maximum operating temperature	70 °C
Minimum operating temperature
Maximum output clock frequency	33.868 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)	NOT SPECIFIED
power supply	5 V
Master clock/crystal nominal frequency	14.318 MHz
Certification status	Not Qualified
Maximum seat height	1.7272 mm
Maximum supply voltage	5.5 V
Minimum supply voltage	4.5 V
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	3.9 mm
uPs/uCs/peripheral integrated circuit type	CLOCK GENERATOR, OTHER

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MK1422

OPL3/4+Codec Portable Clock Source

Description

The MK1422 is the ideal way to generate clocks

for sound in portable computers. It provides clocks

for Analog Devices’ or Crystal Semiconductor’s

stereo codecs, and Yamaha’s OPL3L, OPL3LS,

and OPL4. The MK1422 uses either a

14.318 MHz crystal, or a 14.318 MHz bus clock

input to synthesize the clocks required to drive the

codec, and the 33.868 MHz required for the FM

or wavetable music synthesizer. It includes a power

down pin to save power without using a FET. In an

8 pin SOIC, the MK1422 can save component

count, board space, and cost over surface mount

crystals, and increase reliability by eliminating

three mechanical devices from the board.

MicroClock offers many other parts with stereo

codec support. MicroClock invented sound clocks,

and has the widest product offering and greatest

production experience on these devices. The

MK1422 is pin compatible with MicroClock’s

popular MK1420 when the 14.318MHz clock

output is not used. See the MK14223 for 3.3V.

Features

• Packaged in 8 pin SOIC

• Input crystal or clock frequency of 14.318 MHz

• Output clock frequencies of 16.934 MHz,

24.576 MHz, and 33.868 MHz

• 25mA drive capability at TTL levels

• Advanced, low power CMOS process

• Low jitter ensures full 16 bit S/N ratio

• Insensitive to input clock duty cycle

• Power down for portable computers

AC Coupling/Portable Applications

For applications in portable computers, see the

MK14223, which is specified to operate at 3.3V. It

is possible to drive the MK1422 with a 3.3V,

14.318MHz clock by a.c. coupling using a 0.01µF

capacitor connected in series to the X1 pin. But the

operating VDD on pin 2 must be 5V±10%. This

technique is also effective if the input clock doesn’t

meet the VIH and VIL specifications on page 3.

Additional Clocks or Features

If more than these three output clocks or features

such as output enable are needed, MicroClock can

provide a quick turn modification for your custom

requirements.

Block Diagram

VDD GND

All Chip

Power Down

14.318 MHz

crystal or clock

X1/ICLK

Crystal

Oscillator

Output

Buffer

Clock Synthesis

Circuitry

Output

Buffer

Output

Buffer

16.934 MHz

24.576 MHz

33.868 MHz

MDS 1422 B

Revision 080698

Printed 11/15/00

Integrated Circuit Systems•525 Race Street•San Jose•CA•95126•(408)295-9800tel•www.icst.com

MK1422S Related Products

	MK1422S	MK1422STR
Description	Clock Generator, 33.868MHz, CMOS, PDSO8, SOIC-8	Clock Generator, 33.868MHz, CMOS, PDSO8, SOIC-8
Is it Rohs certified?	incompatible	incompatible
Maker	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)
Parts packaging code	SOIC	SOIC
package instruction	SOP, SOP8,.25	SOP, SOP8,.25
Contacts	8	8
Reach Compliance Code	unknown	unknown
ECCN code	EAR99	EAR99
JESD-30 code	R-PDSO-G8	R-PDSO-G8
JESD-609 code	e0	e0
length	4.9 mm	4.9 mm
Number of terminals	8	8
Maximum operating temperature	70 °C	70 °C
Maximum output clock frequency	33.868 MHz	33.868 MHz
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	SOP
Encapsulate equivalent code	SOP8,.25	SOP8,.25
Package shape	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED
power supply	5 V	5 V
Master clock/crystal nominal frequency	14.318 MHz	14.318 MHz
Certification status	Not Qualified	Not Qualified
Maximum seat height	1.7272 mm	1.7272 mm
Maximum supply voltage	5.5 V	5.5 V
Minimum supply voltage	4.5 V	4.5 V
Nominal supply voltage	5 V	5 V
surface mount	YES	YES
technology	CMOS	CMOS
Temperature level	COMMERCIAL	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)
Terminal form	GULL WING	GULL WING
Terminal pitch	1.27 mm	1.27 mm
Terminal location	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED
width	3.9 mm	3.9 mm
uPs/uCs/peripheral integrated circuit type	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER

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