ICS650-21

SYSTEM PERIPHERAL CLOCK SOURCE

CLOCK SYNTHESIZER

IDT™ / ICS™ SYSTEM PERIPHERAL CLOCK SOURCE

5

ICS650-21

REV J 051310

AC Electrical Characteristics

Unless stated otherwise, VDD = 3.3 V ±5%, Ambient Temperature 0 to +70

° C

Note 1: Values dependent on programming.

Note 2: Measured with 15 pF load.

Thermal Characteristics

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Input Frequency

25

MHz

Output Clocks Accuracy

(synthesis error)

All clocks

1

ppm

Output Rise Time

tOR

0.8 to 2.0 V, Note 2

1.5

ns

Output Fall Time

tOF

2.0 to 0.8 V, Note 2

1.5

ns

Output Clock Duty Cycle

UCLK, at VDD/2

40

50

60

%

PCLCK, ACLCK, at VDD/2

45

50

55

%

One Sigma Jitter

Except ACLK

75

ps

ACLK

120

ps

Absolute Clock Period Jitter

UCLK, 20M

-500

500

ps

Power-up Time

PLL lock time from power-up

to 1% of final value

14

ms

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Thermal Resistance Junction to

Ambient

θJA

Still air

135

° C/W

θJA

1 m/s air flow

93

° C/W

θJA

3 m/s air flow

78

° C/W

Thermal Resistance Junction to Case

θJC

60

° C/W