A single-chip CMOS Bluetooth transceiver with 1.5MHz IF and direct modulation transmitter

A single-chip Bluetooth transceiver in 0.18/spl mu/m CMOS integrates a direct VCO modulation transmitter and 1.5MHz-IF receiver to reduce power consumption and cost. The receiver achieves a sensitivity of -77dBm and transmitting power of +4dBm.