TDA7100XT Infineon Technologies, TDA7100XT Datasheet - Page 31

• 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

the diagram, 550 Ω is the optimum impedance for operation at 3 V. For an approximation
of R
and
Figure 17
The DC collector current I
the load resistor R
collector current will show a characteristic dip at the resonance frequency for this type of
“overcritical” operation. The depth of this dip will increase with higher values of R
Data Sheet
OPT
and P
OUT
Output power P
10*E
Po [mW]
at other supply voltages those two formulas can be used:
L
. This is typical for overcritical operation of class C amplifiers. The
7
6
5
4
3
2
1
0
0
c
of the power amplifier and the RF output power P
o
(mW) and collector efficiency E vs. load resistor R
1000
P
R
OUT
OPT
31
2000
~
~
R
V
OPT
S
RL [Ohm]
3000
10*E
Po
V 1.0, 2007-05-02
Applications
TDA7100
o
vary with
L
L
.
.