pef80913 Infineon Technologies Corporation, pef80913 Datasheet - Page 149

• Manufacturer Part Number: pef80913
• Description: 2b1q Second Gen. Modular Isdn Nt
• Manufacturer: Infineon Technologies Corporation

Table 33
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
• low power LEDs
• MLT input supports
Data Sheet
– APC13112
– AT&T LH1465AB
– discrete as proposed by Infineon
General
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
LD
LD
+
+
Symbol
f
C
R1
C
L
0
C
C
Par
Par
LD
135
+
, which is usually the only variable to be
C
C
LD
LD
+
+
C
C
Par
Par
Limit Values
15.36
+/-60
20
20
7
fundamental
+
C
IO
Operational Description
PEF 82912/82913
DD
) and the stray
LD
, the parasitic
LD
connected
2001-03-30
Unit
MHz
ppm
pF
pF