Spread Spectrum Clock Generator

MDS 7152 E

6

Revision 012306

Integrated Circuit Systems, Inc.

ICS7152

AC Electrical Characteristics

Unless stated otherwise, VDD = 3.3 V ±0.3 V, Ambient Temperature -40 to +85

° C

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Input Crystal Frequency

16.6

40

MHz

Input Clock Frequency

ICS7152-01, -11

16.6

67

MHz

ICS7152-02, -12

40

134

MHz

Output Frequency

CKOUT,

ICS7152-01, -11

16.6

67

MHz

CKOUT,

ICS7152-02, -12

40

134

MHz

Input Clock Duty Cycle

XIN, 16.6 to 100 MHz

40

50

60

%

XIN, 100 to 134 MHz

45

50

55

%

Output Clock Duty Cycle

CKOUT, 1.5 V

40

60

%

Output Slew Rate

CKOUT, 0.4 to 2.4 V,

CL = 15 pF

0.5

3.0

V/ns

Cycle to Cycle Jitter

No load, spread off,

ICS7151-01, -02

150

ps

No load, spread off,

ICS7151-11, -12

250

ps

Power-up Time

PLL lock-time from

power-up to 1% of final

value

25

ms

Modulation Frequency

CKOUT

33

kHz