ICS252

FIELD PROGRAMMABLE DUAL OUTPUT SS VERSACLOCK SYNTHESIZER

EPROM CLOCK SYNTHESIZER

IDT™ / ICS™ FIELD PROGRAMMABLE DUAL OUTPUT SS VERSACLOCK SYNTHESIZER 6

ICS252

REV E 082007

AC Electrical Characteristics

Unless stated otherwise, VDD = 3.3 V ±5%, Ambient Temperature -40 to +85

° C

Note 1: Measured with 15 pF load.

Note 2: Duty Cycle is configuration dependent. Most configurations are minimum 45% and maximum 55%.

Thermal Characteristics

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Input Frequency

Fundamental Crystal

5

27

MHz

Input Clock

2

150

MHz

Output Frequency

0.314

200

MHz

Output Rise Time

20% to 80%, Note 1

1

ns

Output Fall Time

80% to 20%, Note 1

1

ns

Duty Cycle

Note 2

40

49-51

60

%

Power-up Time

PLL lock time from

power-up

410

ms

PDTS goes high until

stable CLK output,

Spread Spectrum Off

.6

2

ms

PDTS goes high until

stable CLK output,

Spread Spectrum On

47

ms

One Sigma Clock Period Jitter

Configuration Dependent

50

ps

Maximum Absolute Jitter

Deviation from Mean.

Configuration Dependent

+200

ps

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Thermal Resistance Junction to

Ambient

Still air

150

° C/W

1 m/s air flow

140

° C/W

3 m/s air flow

120

° C/W

Thermal Resistance Junction to Case

40

° C/W