MB88152-100 Fujitsu Microelectronics, Inc., MB88152-100 Datasheet - Page 10

• Manufacturer Part Number: MB88152-100
• Description: Spread Spectrum Clock Generator
• Manufacturer: Fujitsu Microelectronics, Inc.

10
MB88152
CRYSTAL OSCILLATOR CIRCUIT
The left side of figures below shows the connection example about general crystal resonator. The oscillation
circuit has the built-in feedback resistanc (1 M ). The value of cpacity (C
most suitable value of an individual crystal resonator.
The right side of figures below shows the example of connecting crystal for the 3rd over-tone oscillation. The
value of capacity (C
crystal oscillator. When an external clock is used (the crystal resonator is not used) , input the clock to XIN pin
and do not connect anything with XOUT.
DEFINITION OF JITTER
Cycle-cycle jitter
Cycle - cycle jitter is defined the difference between a certain cycle and immediately after
(or, immediately before).
XIN Pin
Output clock
C
1
Normal crystal oscillation
1
T
, C
JC
R
2
f
(1 M )
and C
|t
n
3
t
) and inductance (L
n
C
1
2
|
XOUT Pin
t
n
External
Internal
1
) is needed adjusting to the most suitable value of an individual
XIN Pin
C
1
3rd over tone
t
n
R
1
f
and C
1
(1 M )
2
) is required adjusting to the
C
2
XOUT Pin
C
L
3
1