TDA5225 Datasheet, PDF (40/176 Pages) Infineon Technologies AG – Enhanced Sensitivity Multi-Channel Quad-Configuration Receiver

TDA5225
Functional Description
A typical power supply application for a 3.3 Volts and a 5 Volts environment is shown in
the figure below.
4.7Ω
*) 22Ω
4.7Ω
100n
TDA 5225
10Ω
VDD5V
VDDA
VDDD
100n
GNDA
VDDD1V5
100n
100n
GNDRF
GNDD
3.3V
100n
TDA5225
VDD5V
VDDA
VDDD
100n
GNDA
VDDD1V5
100n
100n
GNDRF
GNDD
5V
*) 1μ
Supply -Application in 3.3V environment
Supply-Application in 5V environment
*) When operating in a 5V environment, the voltage-drop across the voltage
regulators 5 Æ 3.3V has to be limited , to keep the regulators in a safe
operating range. Resistive or capacitive loads (in excess to the scheme
shown above) on pins VDDA and VDDD are not recommended.
Figure 19 3.3 Volts and 5 Volts Applications
Data Sheet
40
V1.0, 2010-02-19