PEF82902FV11XP Lantiq, PEF82902FV11XP Datasheet - Page 125

• Manufacturer Part Number: PEF82902FV11XP
• Manufacturer: Lantiq

Specifications of PEF82902FV11XP

• Lead Free Status / Rohs Status: Supplier Unconfirmed

3.3.4
Figure 57
•
Figure 57
Table 30
Parameter
Frequency
Frequency calibration tolerance
Load capacitance
Max. resonance resistance
Max. shunt capacitance
Oscillator mode
External Components and Parasitics
The load capacitance C
capacitances C
capacitance C
For a specific crystal the total load capacitance is predefined, so the equation must be
solved for the external capacitances C
determined by the circuit designer. Typical values for the capacitances C
to the crystal are 22 - 33 pF.
3.3.5
Data Sheet
– low power LEDs
illustrates the recommended oscillator circuit.
Oscillator Circuitry
General
Crystal Oscillator
Crystal Parameters
IO
Par
between XIN and XOUT:
(pin and PCB capacitances to ground and V
C
L
L
is computed from the external capacitances C
=
------------------------------------------------------------------------
C
C
C
C
15.36 MHz
LD
LD
LD
LD
+
+
Symbol
f
C
R1
C
L
0
C
C
Par
Par
LD
113
+
, which is usually the only variable to be
C
C
LD
LD
+
+
XOUT
XIN
C
C
Par
Par
Limit Values
15.36
+/-60
20
20
7
fundamental
+
C
IO
Operational Description
DD
) and the stray
LD
, the parasitic
LD
PEF 82902
connected
2001-11-09
Unit
MHz
ppm
pF
pF