SP000611114

The TDA7116F is a single chip ASK/FSK transmitter for operation in the frequency band 866 ... 870 MHz. The IC offers a high level of integration and needs only a few external components. The device contains a fully integrated PLL synthesizer and a high efficiency power amplifier to drive a loop antenna. A special circuit design and an unique power amplifier design are used to save current consumption and therefore to save battery life. Additional features are a power down mode and a divided clock output.

Summary of Features

• Fully integrated frequency synthesizer
• VCO without external components
• ASK and FSK modulation
• Frequency range 866 ... 870 MHz
• High efficiency power amplifier (typically 10 dBm)
• Low supply current
• Voltage supply range 2.1 ... 4 V
• Temperature range −40 ... +85°C
• Power down mode
• Crystal oscillator 13.56 MHz
• FSK-switch
• Divided clock output for μC
• Low external component count

Target Applications

• Remote Keyless Entry (RKE) systems
• Tire Pressure Monitoring (TPM) systems
• Remote control systems
• Alarm systems
• Communication systems