Spread Spectrum Clock Generator

MDS 7151A-50 A

5

Revision 102005

Integrated Circuit Systems, Inc.

ICS7151A-50

DC Electrical Characteristics

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

°C

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

Operating Voltage

VDD

3.0

3.3

3.6

V

Supply Current

IDD

No load, at 3.3 V,

output = 24 MHz

10

14

mA

Input Frequency

16.5

33.4

MHz

Input High Voltage

XIN, S0, S1, ENS

VDD * 0.8

VDD + 0.3

V

Input Low Voltage

XIN, S0, S1, ENS

0.0

VDD * 0.20

V

Output High Voltage

2.0

V

Output Low Voltage

0.4

V

Input Capacitance

XIN, S0, S1, ENS

16

pF

Load Capacitance

CKOUT, 8.3 to 66.7

MHz

15

pF

CKOUT, 66.7 to 100

MHz

10

pF

CKOUT, 100 to 133.4

MHz

7pF

Input Pull-up Resistor

ENS

100

240

400

k

Ω

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Oscillation Frequency

Fundamental

oscillation

16.5

33.4

MHz

Input Frequency

XIN

16.5

33.4

MHz

Output Frequency

CKOUT, 2-frequency

division

8.3

16.7

MHz

Input Clock Duty Cycle

XIN, 16.5 to 33.4 MHz

40

50

60

%

Output Clock Duty Cycle

CKOUT, 1.5 V

40

60

%

Output Slew Rate

CKOUT, 0.4 to 2.4 V,

load capacitance 15 pF

0.5

TBD

3.0

V/ns

Cycle to Cycle Jitter

No load, standard

deviation

TBD

200

ps

Lock Time

CKOUT

2

5

ms

Modulation Frequency

CKOUT=TBD

33

kHz