3.6864–MHz Oscillator Specifications

B.1.2 Quartz Crystal Specification

The following specifications for the quartz crystal are shown in the figure and table below.

Resonance frequency (fs):

Motional capacitance (Cm):

Motional inductance (Lm): Motional resistance (Rm):

Shunt capacitance (Co): Load capacitance (CL):

Drive level:

Aging:

Resonance frequency of the crystal.

Equivalent serial capacitance in the crystal model.

Not generally given in supplier specification.

Equivalent serial resistance in the crystal model. Some crystal providers refer to this resistance as the Equivalent Series Resistance (ESR) or simply Series Resistance.

Parasitic capacitance between Q1 and Q2.

Needed load capacitance viewed by the crystal to oscillate at fs.

Power dissipated in the equivalent serial resistance (Rm).

Resonance frequency shift due to aging.

 

 

 

Co

 

 

Q1

 

 

 

 

Q2

 

Cm

Lm

Rm

 

 

Specification

Minimum

 

Typical

Maximum

Unit

Resonance frequency (fs)

3.5795

 

3.6864

MHz

Motional resistance (Rm)

40

180

300

W

 

 

 

 

 

Shunt capacitance (Co)

7

pF

 

 

 

 

 

Drive level

10

μW

 

 

 

 

 

Crystal type

AT cut crystal

 

 

 

SA-1110 Developer’s Manual

B-3

Page 379
Image 379
Intel SA-1100 manual Quartz Crystal Specification, Typical Maximum Unit