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
