PLL502-00

Multiplier VCXO IC Die for 12 to 25MHz Parallel Resonant Crystals

47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/17/04 Page 3

4. Voltage Control Crystal Oscillator

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

VCXO Stabilization Time *

From power valid

10

ms

VCXO Tuning Range

0V

≤ VCON ≤ 3.3V

500

ppm

CLK output pullability

VCON=1.65V,

±1.65V

±200

ppm

VCXO Tuning Characteristic

150

ppm/V

Pull range linearity

10

%

VCON pin input impedance

2000

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.

5. Crystal Specifications

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Crystal Resonator Frequency

Parallel Fundamental Mode

12

25

MHz

Crystal Loading Rating

At VCON = 1.65V

9.5

pF

Crystal Pullability

AT cut

250

-

Recommended ESR

AT cut

30

Ω

Note: Crystal Loading rating: 9.5pF is the loading the crystal sees from the VCXO chip at VCON = 1.65V. It is assumed that the crystal will be at

nominal frequency at this load. 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.

6. Jitter and Phase Noise specification*

PARAMETERS

CONDITIONS

MIN.

TYP.

MAX.

UNITS

at 77.76MHz, with capacitive

decoupling between VDD and GND.

3.5

RMS Period Jitter

(1 sigma – 1000 samples)

at 155.52MHz, with capacitive

decoupling between VDD and GND.

4

ps

Phase Noise relative to carrier

77.76MHz @100Hz offset

-100

dBc/Hz

Phase Noise relative to carrier

77.76MHz @1kHz offset

-123

dBc/Hz

Phase Noise relative to carrier

77.76MHz @10kHz offset

-130

dBc/Hz

Phase Noise relative to carrier

77.76MHz @100kHz offset

-125

dBc/Hz

Phase Noise relative to carrier

77.76MHz @1MHz offset

-125

dBc/Hz

Phase Noise relative to carrier

155.52MHz @100Hz offset

-95

dBc/Hz

Phase Noise relative to carrier

155.52MHz @1kHz offset

-120

dBc/Hz

Phase Noise relative to carrier

155.52MHz @10kHz offset

-128

dBc/Hz

Phase Noise relative to carrier

155.52MHz @100kHz offset

-122

dBc/Hz

Phase Noise relative to carrier

155.52MHz @1MHz offset

-120

dBc/Hz

* General condition: Control Voltage is 0V.