Preliminary

PLL502-13

192MHz – 400MHz Low Phase Noise PECL VCXO (12 – 25MHz Crystal)

47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991

Rev 7/15/02 Page 3

2. Crystal Specifications

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Crystal Resonator

Frequency

Parallel Fundamental

Mode

12

25

MHz

Crystal Loading Rating

At VIN = 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 VIN = 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.

3. Voltage Control Crystal Oscillator

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

VCXO Stabilization Time *

From power valid

10

ms

VCXO Tuning Range

380

ppm

CLK output pullability

0V

≤ VCON ≤ 3.3V

±190

ppm

Linearity

5

10

%

VCXO Tuning Characteristic

115

ppm/V

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.

4. General Electrical Specifications

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Supply Current, Dynamic

(with Loaded Outputs)

PECL

80

mA

Operating Voltage

3.13

3.47

V

Output Clock Duty Cycle

@ Vdd – 1.3V (PECL)

45

50

55

%

Short Circuit Current

±50

mA