TDA7110FHTMA1

射频发射器 CONTROL

Description:

The TDA 711xF products are single chip ASK/FSK transmitter operating in the 434 and 868MHz frequency band. The ICs offer a high level of integration and need only a few external components to build a complete transmitter solution. The products vary in package and supported frequency band.

The devices contain a fully integrated PLL synthesizer and a high efficiency power amplifier to drive the antenna. A special circuit design, a unique power amplifier and a power down feature contribute to low current consumption and to extended battery life. The ICs have a clock output for the micro-controller and as such enable the usage of only one crystal in the application. Additionally, TDA 7110 features a selectable clock divider ratio.

Summary of Features:

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ASK and FSK modulation

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„„Frequency range @ 25°C depending on device:427 to 442MHz, 854 to 884MHz

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High efficiency power amplifier typ. +10dBm output power at 3V supply voltage

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Low supply current depending on device: I s = ~14.0mA typ. in transmit mode V s = 3V

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Very low supply current in power down mode 0.25nA typ.

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Supply voltage range 2.1 to 4V

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Temperature range -40 to +85°C

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Built-in low/high frequency switch for FSK Mode

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Clock output for μC

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TDA 7110 only:selectable clock divider ratio

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Crystal oscillator in 13.5MHz band and 6MHz band TDA 7110 only

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Fully integrated PLL frequency synthesizer

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„„Fully integrated VCO no need for external components

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Low external component count