TDA7200 Datasheet, PDF (48/49 Pages) Infineon Technologies AG – ASK/FSK Single Conversion Receiver

TDA7200
List of Figures
Page
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
Figure 18
Figure 19
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
LNA Automatic Gain Control Circuity . . . . . . . . . . . . . . . . . . . . . . . . . . 19
RSSI Level and Permissive AGC Threshold Levels . . . . . . . . . . . . . . 20
Data Filter Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Determination of Series Capacitance Vale for the Quartz Oscillator . . 22
Data Slicer Threshold Generation with External R-C Integrator . . . . . 24
Data Slicer Threshold Generation Utilising the Peak Detector . . . . . . 25
ASK/FSK mode datapath. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Frequency characteristic in case of FSK mode . . . . . . . . . . . . . . . . . . 27
Frequency characteristic in case of ASK mode . . . . . . . . . . . . . . . . . . 28
Principle of the precharge circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Voltage appearing on C18 during precharging process. . . . . . . . . . . . 30
Voltage transient on capacitor C13 attached to pin 20 . . . . . . . . . . . . 31
Schematic of the Evaluation Board . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Top Side of the Evaluation Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Bottom Side of the Evaluation Board . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Component Placement on the Evaluation Board . . . . . . . . . . . . . . . . . 44
PG-TSSOP-28 package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Data Sheet
48
V 1.0, 2007-05-02