(Preliminary)

ABV8068/69

320-640MHz Low Phase Noise VCXO

30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 9/1/05 Page 7

10. PECL Electrical Characteristics

PARAMETERS

SYMBOL

CONDITIONS

MIN.

MAX.

UNITS

Output High Voltage

V

Output Low Voltage

(see figure)

V

11. PECL Switching Characteristics

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Clock Rise Time

@20/80% - PECL

0.6

1.5

ns

Clock Fall Time

@80/20% - PECL

0.5

1.5

ns

OUT

OUT

50

Ω

50

Ω

PECL Levels Test Circuit

PECL Transistion Time Waveform

OUT

OUT

50%

20%

80%

t

R

t

F

VDD

DUTY CYCLE

45 - 55%

55 - 45%

50%

OUT

OUT

t

SKEW

PECL Output Skew

2.0V