TDA7100 Datasheet PDF - Infineon

●Description:

●The TDA 7100 is a single chip ASK/FSK transmitttter operating in the 433 to 435MHMHz frequency band. The ICIC offers a high level of integration and needs only a few external components to build a complete transmitter. The device contains a fully integrated PLLLL synthesizer and a high efficiency power amplifier to drive the antenna. A special circuit design and a unique power amplifier contribute to low current consumption and to extended battery life.

●Additional features are a power down mode and a clock output ( F ref ÷16 ) which could be used as CLCLK for a μC.

●Summary of Features:

● Fully integrated PLLLL frequency synthesizer

● Fully integrated VCO (no need for external components)

● ASK and FSK modulation

● Frequency range 433 to 435MHMHz

● High efficiency power amplifier (typically +5dBm output power by 3V supply  voltage)

● Low supply current

● Voltage supply range 2.1 - 4V

● Temperature range -20 to +70°C

● Power down mode

● Crystal oscillator in 13.5MHz band (F o = 32 x F ref )

● Built-in low/high frequency switch for FSK Mode

● Divided clock output for μC clocking (F ref ÷16)

● Low external component count