ICS650-40 datasheet(4/6 Pages) ICST

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ETHERNET SWITCH CLOCK SOURCE

MDS 650-40 C

Revision 060705

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ICS650-40

DC Electrical Characteristics

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

°C

Note: 1. Nominal switching threshold is VDD/2.

AC Electrical Characteristics

, VDD = 3.3 V ±5%, VDDO = 2.5 - 3.3 V ±5%, CL=10 pF Ambient Temperature 0 to +70° C

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Operating Voltage

VDD

3.15

3.45

Output Operating Voltage

VDDOA,B

2.375

3.45

Input High Voltage, ICLK

VIH

Note 1

VDD/2+0.5

Input Low Voltage, ICLK

VIL

Note 1

VDD/2-0.5

Input High Voltage, S1:S0:OE

VIH

2VDD

Input Low Voltage, S1:S0:OE

VIL

0.4

Output High Voltage

VOH

IOH = -12 mA

Output Low Voltage

VOL

IOL = 12 mA

0.4

Operating Supply Current

IDD

No load

IDD at Output Disable

Condition(OE low)

No load

Short Circuit Current

IOS

Each output

±35

Internal Pull-up Resistor

RPUP

OE pin

250

Ω

Internal Pull-down Resistor

RPD

CLK outputs

525

Ω

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Input Frequency

MHz

Output Rise Time

tOR

20% to 80% of VDD

1.6

Output Fall Time

tOF

80% to 20% of VDD

1.6

Output Clock Duty Cycle

at VDD/2

49-51

Frequency Error

all clocks

ppm

Output to Output Skew

between clocks of the same

frequency

250

Absolute Jitter, Short-term P-P

variation from mean

±100

±200

Absolute Jitter, Short-term C-C

200

400

Long-term Jitter

1000 clock cycles

250

400

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