18

Integrated

Circuit

Systems, Inc.

ICS951402

Advance Information

0660—05/05/05

Electrical Characteristics - VCH, 48MHz DOT, 48MHz, USB

TA = 0 - 70C; VDD=3.3V +/-5%; CL = 10-20 pF (unless otherwise specified)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output Frequency

FO1

48

MHz

Output Impedance

RDSP1

1

VO = VDD*(0.5)

20

48

60

W

Output High Voltage

VOH

1

IOH = -1 mA

2.4

V

Output Low Voltage

VOL

1

IOL = 1 mA

0.4

V

Output High Current

IOH

1

V OH@MIN = 1.0 V, V OH@MAX =

3.135 V

-29

-23

mA

Output Low Current

IOL

1

VOL @MIN = 1.95 V, VOL @MAX =

0.4 V

29

27

mA

48DOT Rise Time

tr1

1

VOL = 0.4 V, VOH = 2.4 V

0.5

0.6

1

ns

48DOT Fall Time

tf1

1

VOH = 2.4 V, VOL = 0.4 V

0.5

0.8

1

ns

VCH 48 USB Rise Time

tr1

1

VOL = 0.4 V, VOH = 2.4 V

1

1.2

2

ns

VCH 48 USB Fall Time

tf1

1

VOH = 2.4 V, VOL = 0.4 V

1

1.3

2

ns

48 DOT Duty Cycle

dt1

1

VT = 1.5 V

45

52.8

55

%

VCH 48 USB Duty Cycle

dt1

1

VT = 1.5 V

45

53.5

55

%

48 DOT Jitter

tjcyc-cyc

1

VT = 1.5 V

183

350

ps

USB to DOT Skew

tsk1

1

VT = 1.5 V (0 OR 180 degrees)

0.43

1

ns

VCH Jitter

tjcyc-cyc

1

VT = 1.5 V

223

350

ps

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

Electrical Characteristics - SDRAM

TA = 0 - 70C; VDD =VDDL 3.3 V +/-5%; CL = 30 pF (unless otherwise stated)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Output Impedance

RDSP2A

1

VO = VDD*(0.5)

10

20

Ω

Output Impedance

RDSN2A

1

VO = VDD*(0.5)

10

20

Ω

Output High Voltage

VOH2A

IOH = -28 mA

2.4

V

Output Low Voltage

VOL2A

IOL = 19 mA

0.4

V

Output High Current

IOH2A

VOH = 2.0 V

-42

mA

Output Low Current

IOL2A

VOL = 0.8 V

33

mA

Rise Time

tr2A

1

VOL = 0.4 V, VOH = 2.4 V

0.5

2.0

ns

Fall Time

tf2A

1

VOH = 2.4 V, VOL = 0.4 V

0.5

2

ns

Duty Cycle

dt2A

1

VT = 1.5 V

45

55

%

Jitter

1

tcyc-cyc

VT = 1.5 V

250.0

ps

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