PL502-35/-37/-38/-39

750kHz

– 800MHz Low Phase Noise Multiplier VCXO

Universal Low Phase Noise ICs

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 4/15/13 Page 4

2. 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

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 cr ystal will be at nom-

inal frequency at this load. If the crystal requires more load to be at nominal frequency, the additiona l 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

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

kΩ

VCON modulation BW

0V

 VCON  3.3V, -3dB

10

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)

LVPECL/LVDS/

LVCMOS

60/28/15

mA

65/45/30

100/80/40

Operating

Voltage

2.97

3.63

V

Output Clock Du-

ty Cycle

@ 1.25V (LVDS)

45

45

45

50

50

50

55

55

55

%

Short Circuit

Current

50

mA