TDA7110 Datasheet, PDF (18/39 Pages) Infineon Technologies AG – ASK/FSK Transmitter 868/433 MHz

TDA7110
Functional Description
2.4.6 Recommended timing diagrams for ASK- and FSK-Modulation
ASK Modulation using FSKDTA and ASKDTA, PDWN not connected
Modes:
Power Down
PLL Enable
Transmit
High
FSKDTA
Low
Open, High
ASKDTA
Low
to
t
DATA
to
t
min. 1 msec.
Figure 2-6 ASK Modulation
ASK_mod.wmf
FSK Modulation using FSKDTA and ASKDTA, PDWN not connected
Modes:
Power Down
PLL Enable
High
FSKDTA
Low
High
ASKDTA
Low
to
to
min. 1 msec.
Figure 2-7 FSK Modulation
Transmit
DATA
t
t
FSK_mod.wmf
Wireless Components
2 - 12
Data Sheet, December 2008