FEMTOCLOCK® CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR

3

Rev D 9/25/15

843021 DATA SHEET

Table 4B. LVPECL DC Characteristics, VCC = 3.3V ±10%, VEE = 0V, TA = 0°C to 70°C

NOTE 1: Outputs termination with 50

 to V

CC – 2V.

Table 5. Crystal Characteristics

NOTE 1:Input frequency is limited to a range of 22.4MHz – 28MHz due to VCO range.

AC Electrical Characteristics

Table 6. AC Characteristics, VCC = 3.3V ± 10%, VEE = 0V, TA = 0°C to 70°

NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device is

mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal equilibrium

has been reached under these conditions.

NOTE 1: Refer to Phase Noise Plot.

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

VOH

Output High Voltage; NOTE 1

VCC – 1.4

VCC – 0.9

V

VOL

Output Low Voltage; NOTE 1

VCC – 2.0

VCC – 1.7

V

VSWING

Peak-to-Peak Output Voltage Swing

0.6

1.0

V

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

Mode of Oscillation

Fundamental

Frequency; NOTE 1

14

40

MHz

Equivalent Series Resistance (ESR)

50



Shunt Capacitance

7pF

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

fOUT

Output Frequency

112

140

MHz

tjit(Ø)

RMS Phase Jitter, Random;

NOTE 1

125MHz,

Integration Range: 1.875MHz – 20MHz

0.37

0.65

ps

tR / tF

Output Rise/Fall Time

20% to 80%

250

550

ps

odc

Output Duty Cycle

49

51

%