TDA7100XT Infineon Technologies, TDA7100XT Datasheet - Page 26

• Manufacturer Part Number: TDA7100XT
• Manufacturer: Infineon Technologies

Specifications of TDA7100XT

• Operating Temperature (min): -20C
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 2.1V
• Operating Supply Voltage (typ): 2.5/3.3V
• Lead Free Status / Rohs Status: Compliant

3.7
The crystal oscillator achieves a turn on time less than 1 msec when the specified crystal
is used. To achieve this, a NIC oscillator type is implemented in the TDA7100. The input
impedance of this oscillator is a negative resistance in series to an inductance. Therefore
the load capacitance of the crystal CL (specified by the crystal supplier) is transformed
to the capacitance Cv.
Figure 14
Formula 1:
CL:
ω:
L:
Data Sheet
BAT1
Ref.
IC1
IC2
crystal load capacitance for nominal frequency
angular frequency
inductance of the crystal oscillator
Application Hints on the Crystal Oscillator
Application Hints
battery holder
TDA7100
HCS360
battery
Value
-R
Cv
L
IC
=
CL
1
26
+
1
ω
2
L
f, CL Cv
HU2031-1, Renata
CR2032, Renata
Specification
P-TSSOP-10
SO8
V 1.0, 2007-05-02
Applications
TDA7100