ICS8535I-31

LOW SKEW, 1-TO-4, CRYSTAL OSCILLATOR/LVCMOS-TO-3.3V LVPECL FANOUT BUFFER

IDT™ / ICS™ 3.3V LVPECL FANOUT BUFFER

5

ICS8535AGI-31 REV. A AUGUST 16, 2007

NOTE 1: Outputs terminated with 50

Ω to V

Table 5. Crystal Characteristics

AC Electrical Characteristics

All parameters measured at ƒ

≤ 266MHz unless noted otherwise.

NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions.

Measured at the differential output crossing point.

NOTE 3: This parameter is defined in accordance with JEDEC Standard 65.

NOTE 4: Defined as skew between outputs on different devices operating at the same supply voltage and with equal load conditions.

Using the same type of inputs on each device, the outputs are measured at the differential cross points.

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

Output High Voltage; NOTE 1

V

Output Low Voltage; NOTE 1

V

Peak-to-Peak Output Voltage Swing

0.6

1.0

V

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

Mode of Oscillation

Fundamental

Frequency

12

40

MHz

Equivalent Series Resistance (ESR)

50

Ω

Shunt Capacitance

7pF

Drive Level

1mW

Parameter

Symbol

Test Conditions

Minimum

Typical

Maximum

Units

Output Frequency

266

MHz

Propagation Delay; NOTE 1

1.4

1.75

ns

tjit

Buffer Additive Phase Jitter, RMS;

refer to Additive Phase Jitter Section

155.52MHz, Integration Range:

12kHz – 20MHz

0.057

ps

tsk(o)

Output Skew; NOTE 2, 3

30

ps

tsk(pp)

Part-to-Part Skew; NOTE 3, 4

200

ps

Output Rise/Fall Time

20% to 80%

300

600

ps

odc

Output Duty Cycle

46

54

%