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TDA7100

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.

Parametric TDA7100 Frequency Band 434.0MHz Channel Requirements per Band Single Channel Modulation Type ASK / FSK Transmit Power (@3V) 5.0dBm Temperature  min  max -20.0°C  70.0°C Frequency Range (@ 25°C)  min  max 427.0MHz  442.0MHz Frequency Range  min  max 432.0MHz  437.0MHz Supply Voltage  min  max 2.1V  4.0V Sales Product Name TDA7100 OPN TDA7100HTMA1 Product Status active and preferred Package Name PG-TSSOP-10 Completely lead free yes Halogen free no RoHS compliant yes Packing Size 5000 Packing Type TAPE & REEL Moisture Level 1

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 Target Applications: Remote control systems Alarm systems Communication systems

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