PLL520-38/-39

PECL and LVDS Low Phase Noise VCXO (for 65-130MHz Fund Xtal)

47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/20/04 Page 3

3. Voltage Control Crystal Oscillator (3.3V)

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

VCXO Stabilization Time *

From power valid

10

ms

VCXO Tuning Range

0V

≤ VCON ≤ 3.3V

200*

ppm

CLK output pullability

VCON=1.65V,

±1.65V

±100*

ppm

On-chip Varicaps control range

VCON = 0 to 3.3V

4 – 18*

pF

Linearity

10*

%

VCXO Tuning Characteristic

65

ppm/V

VCON input impedance

60

k

Ω

VCON modulation BW

0V

≤ VCON ≤ 3.3V, -3dB

25

kHz

Note: Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any specific limits.

4. General Electrical Specifications

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Supply Current (Loaded

Outputs)

PECL/LVDS

100/80

mA

Operating Voltage

2.97

3.63

V

Output Clock Duty Cycle

@ 1.25V (LVDS)

45

45

50

50

55

55

%

Short Circuit Current

±50

mA

5. Jitter Specifications

PARAMETERS

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Period jitter RMS

77.76MHz

2.5

ps

Period jitter peak-to-peak

77.76MHz

18.5

ps

Integrated jitter RMS

Integrated 12 kHz to 20 MHz at 77.76MHz

0.5

ps

6. Phase Noise Specifications

PARAMETERS

FREQUENCY

@10Hz

@100Hz

@1kHz

@10kHz

@100kHz

UNITS

Phase Noise relative

to carrier

77.76MHz

-75

-95

-125

-145

-155

dBc/Hz

Note: Phase Noise measured at VCON = 0V