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MK1725

Quad Output Spread Spectrum Clock Generator

Integrated Circuit Systems 

MK1725

Quad Output Spread Spectrum Clock Generator

AC Electrical Characteristics

Unless stated otherwise, VDD = 3.0 V ±5%, Ambient Temperature 0 to +70°C

Parameter

Symbol

Conditions

Min.

Input Frequency

Output Rise Time

Output Fall Time

Output Clock Duty Cycle

fIN

Crystal or clock input

20

tOR 20% to 80%, Note 1

tOF 80% to 20%, Note 1

At VDD/2, Note 1

45

1X, 2X modes

at VDD/2, Note 1

40

4X mode

Absolute Clock Period Jitter

Modulation Frequency

Output to Output Skew

tJ

Cycle to cycle, Note 1

fmod

25

Non-spread modes

Output Enable Time

tOE PDTS high to output

spread profile stable

Output Disable Time

tOD PDTS low to tri-state

Note 1: Measured with a 15 pF load.

Thermal Characteristics

Parameter

Symbol Conditions

Thermal Resistance Junction to

Ambient

θJA Still air

θJA 1 m/s air flow

θJA 3 m/s air flow

Thermal Resistance Junction to Case θJC

Marking Diagram

16

9

Min.

MK1725GL

######

YYWW

Typ.

1.2

1.0

50

Max. Units

34 MHz

ns

ns

55

%

50

60

%

150

ps

50 kHz

250 ps

2.6

ms

10

ns

Typ.

78

70

68

37

Max.

Units

°C/W

°C/W

°C/W

°C/W

1

8

Notes:

1. ###### is the lot code.

2. YYWW is the last two digits of the year and the week number that the part was assembled.

3. “L” denotes Pb (lead) free package.

4. Bottom marking: (origin). Origin = country of origin of not USA.

MDS 1725 C

5

Revision 021605

Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ●www.icst.com

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