| 摘要 |
An one-chip diversity DMB(Digital Multimedia Broadcasting) receiving chip for sharing one VCO(Voltage Controlled Oscillator) is provided to save producing cost and be minimized by integrating two receiving blocks and the VCO in one chip. The first receiving block(206), including the first LNA(Low Noise Amplifier)(202), the first mixer(204), the first LPF(Low Pass Filter)(204), and the first amplifier(205), converts an RF(Radio Frequency) signal received from the first antenna(201) into a baseband signal. The second receiving block(216), including the second LNA(212), the second mixer(213), the second LPF(214), and the second amplifier(215), converts an RF signal received from the second antenna(211) into a baseband signal. One VCO(207) provides an oscillation signal for converting the RF signal into the baseband signal to the first mixer(203) and the second mixer(213). The first receiving block(206), the second receiving block(216), and the VCO(207) are integrated on a chip formed as the one same material. |
