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http://www.siemens.de/semiconductor/consumer_electronic
TDA 5100
Product Brief
TDA 5100
ASK/FSK Transmitter
Potential Application
■Keyless entry systems
■Remote control systems
■Alarm systems
■Communication systems
Features
■Low supply current
■Supply voltage range 2.1-4 V
■Power down mod e
■Fully integrated VCO, PLL and
power amplifier
■Switchable frequency range
868-870 / 433-435 MHz
■Selectable crystal oscillator
6.78 / 13.56 MHz
■Programmable divided clock
output for µC
■Low external component count
■ASK/FSK modulation
The IC is a single chip ASK/FSK
transmitter for the frequency bands
868-870 MHz and 433-435 MHz.
The transmitter offers a high level
of integration and needs only a
few external components.
The device contains a fully
integrated VCO, a PLL synthesizer,
a crystal oscillator with a divided
clock output to drive a microcon-
troller and a power amplifier to
drive a loop antenna. Additionally
there is a power down feature to
save battery life and a low voltage
sensor which can be used to
disable the power amplifier. The
IC can be used for both ASK and
FSK modulation.
Packing
Type Ordering Code Package
TDA 5100 Q67036-A1070 P-TSSOP-16