9

ICS94225

0445B—08/01/03

Electrical Characteristics - USB, REF(1:0)

TA = 0 - 70°C; VDD = 3.3 V +/-5%; CL = 20 pF (unless otherwise stated)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output High Voltage

2.4

V

Output Low Voltage

0.4

V

Output High Current

-22

mA

Output Low Current

16

mA

Rise Time

1

0.98

4

ns

Fall Time

1

0.77

4

ns

Duty Cycle

1

VT = 1.5V

45

54

57

%

Jitter, Cycle-to-cycle

1

VT = 1.5V

471

1100

ps

1

Guaranteed by design, not 100% tested in production.

Electrical Characteristics - CPUCLK (Open Drain)

TA = 0 - 70°C; VDD = 3.3 V +/-5%; CL = 20 pF (unless otherwise stated)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output Impedance

Output High Voltage

11.2

V

Output Low Voltage

0.4

V

Output Low Current

18

mA

Rise Time

1

0.9

ns

Fall Time

1

tf2B

0.9

ns

Differential voltage-AC

1

Note 2

0.4

V

Differential voltage-DC

1

Note 2

0.2

V

Differential Crossover

Note 3

550

1100

mV

Duty Cycle

1

45

51

55

%

Skew

1

46

200

ps

Jitter, Cycle-to-cycle

1

86

250

ps

Jitter, Absolute

1

-250

250

ps

Notes:

1 - Guaranteed by design, not 100% tested in production.

Vpu

+0.6

Termination to Vpull-up(external)