3.6864–MHz Oscillator Specifications

approximately twice the values given, the startup time in this situation will be about double the specified startup time and the current consumption will increase. Capacitances larger than twice the specified values may prevent the oscillator from starting.

B.1.1.1. Parasitic Capacitance Off-chip Between PXTAL and PEXTAL

The parasitic capacitance off-chip between PXTAL and PEXTAL is the board capacitance between the PXTAL and PEXTAL pins.

B.1.1.2. Parasitic Capacitance Off-chip Between PXTAL or PEXTAL and VSS

The parasitic capacitance off-chip between PXTAL or PEXTAL and VSS is the parasitic board capacitance between the PXTAL or PEXTAL pins and the VSS wire surrounding the crystal connections.

B.1.1.3. Parasitic Resistance Between PXTAL and PEXTAL

The parasitic resistance between PXTAL and PEXTAL is the parasitic resistance between the PXTAL and PEXTAL pins due to moisture and other effects.

B.1.1.4. Parasitic Resistance Between PXTAL or PEXTAL and VSS

The parasitic resistance between PXTAL or PEXTAL and VSS is the parasitic resistance between the PXTAL or PEXTAL pins to VSS due to moisture and other effects.

The following table describes the system specifications of the oscillator circuit.

Specification

Minimum

Typical

 

Maximum

 

Unit

 

 

 

 

 

 

 

Temperature range

0

 

 

100

 

oC

Supply voltage

3

3.3

 

3.6

 

V

 

 

 

 

 

 

 

Ripple voltage on the supply

0.3

V

 

 

 

 

 

 

Current consumption

15

40

µA

 

 

 

 

 

Startup time

15

150

ms

 

 

 

 

 

 

 

Parasitic capacitance off-chip

 

 

 

 

 

pF

between PXTAL and PEXTAL

1

 

 

 

 

 

 

 

 

 

 

Parasitic capacitance off-chip

 

 

 

 

 

 

between PXTAL or PEXTAL and

2

 

pF

VSS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parasitic resistance between

1

 

M

Ω

PXTAL or PEXTAL to VSS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parasitic resistance between

1

 

M

Ω

PXTAL and PEXTAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B-2

SA-1110 Developer’s Manual

Page 378
Image 378
Intel SA-1100 manual MHz Oscillator Specifications, Specification Minimum Typical Maximum Unit