(Preliminary)

PLL500-37

Low Phase Noise VCXO (36MHz to 130MHz)

47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 03/01/06 Page 4

5. Crystal Specifications

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Crystal Resonator Frequency

36

130

MHz

Crystal Loading Rating

VCON = 1.65V

5.0

pF

Maximum Sustainable Drive Level

200

µW

Operating Drive Level

50

µW

C0/C1

250

-

30

Ω

25

Ω

20

Ω

ESR

15

Ω

Note: The crystal must be such that it oscillates (parallel resonant) at nominal frequency when presented a C Load as specified above.

If the crystal requires more load to be at nominal frequency, the additional load must be added externally.

This however may reduce the pull range and oscillator gain.

6. Jitter and Phase Noise Specifications

PARAMETERS

CONDITIONS

MIN.

TYP.

MAX.

UNITS

RMS Period Jitter

(1 sigma – 1000 samples)

With capacitive decoupling between

VDD and GND.

2.5

ps

Phase Noise relative to carrier

77.76MHz @10Hz offset

-80

dBc/Hz

Phase Noise relative to carrier

77.76MHz @100Hz offset

-110

dBc/Hz

Phase Noise relative to carrier

77.76MHz @1kHz offset

-134

dBc/Hz

Phase Noise relative to carrier

77.76MHz @10kHz offset

-148

dBc/Hz

Phase Noise relative to carrier

77.76MHz @100kHz offset

-150

dBc/Hz

Phase Noise relative to carrier

77.76MHz @1MHz offset

-152

dBc/Hz