tda5225 Infineon Technologies Corporation, tda5225 Datasheet - Page 44

• Manufacturer Part Number: tda5225
• Description: Enhanced Sensitivity Multi-channel Quad-conf Igurat Ion Receiver With Digital Slicer
• Manufacturer: Infineon Technologies Corporation

2.5
In all applications, the TDA5225 receiver IC is attached to an external microcontroller.
This so-called Application Controller executes a firmware which governs the TDA5225
by reading data from the receiver when data has been received on the RF channel and
by configuring the receiver device. The TDA5225 features an easy to use System
Interface, which is described in this chapter.
The TDA5225 supports the so-called Transparent Mode, which provides a rather
rudimentary interface by which the incoming RF signal is demodulated and the
corresponding data is made available to the Application Controller. The usage of the
Transparent Mode will be described in
2.5.1
The TDA5225 is interfacing with an application by three logical interfaces, see
Figure
for the demodulation. Its physical implementation has been described in
and
connection to the Application Controller.
For the sake of clarity, the communication between the TDA5225 and the Application
Controller is split into control flow and data flow. This separation leads to an
independent definition of the data interface and the control interface, respectively.
Figure 22
Data Sheet
RF interface
Chapter
22. The RF/IF interface handles the reception of RF signals and is responsible
System Interface
Interfacing to the TDA5225
Logical and electrical System Interfaces of the TDA5225
2.4.8, respectively. The other two logical interfaces establish the
TDA5225
Chapter
44
control interface
data interface
status & alerts
configuration
2.5.1.2.
RX data
Functional Description
Application
V1.0, 2010-02-19
Controller
Chapter 2.4.3
(µC)
TDA5225