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1.发明公开Terrestrial-digital multimedia broadcasting and digital audio broadcasting low intermediate frequency receiver 审中-公开T-DMB-和DAB-Empfängermit Niedriger Zwischenfrequenz
公开(公告)号：EP1753232A1
公开(公告)日：2007-02-14
申请号：EP06118840.5
申请日：2006-08-11
CPC分类号： H03J1/005 , H04B1/0064 , H04B1/0082 , H04B1/30 , H04H40/18
摘要： Provided is a terrestrial-digital multimedia broadcasting (T-DMB) and digital audio broadcasting (DAB) low intermediate frequency (IF) receiver. A T-DMB and DAB low IF receiver comprises a low noise amplifier (LNA) 202, an image rejection down-conversion mixer 203, a low pass filter 204, an amplifier 205, a local oscillator 208, and a phase-locked loop 209. Particularly, the LNA, the image rejection down-conversion mixer, the low pass filter, the amplifier, the local oscillator, and the phase-locked loop are integrated in a monolithic semiconductor integrated circuit substrate. Using the T-DMB and DAB low IF receiver allows a removal of a conventional SAW filter and the T-DMB and DAB low IF receiver can be easily integrated in the monolithic semiconductor integrated circuit substrate, and manufactured at low costs.
摘要翻译： 提供了地面数字多媒体广播（T-DMB）和数字音频广播（DAB）低中频（IF）接收机。 T-DMB和DAB低IF接收机包括低噪声放大器（LNA）202，镜像抑制下变频混频器203，低通滤波器204，放大器205，本地振荡器208和锁相环209 特别地，LNA，图像抑制下变频混频器，低通滤波器，放大器，本地振荡器和锁相环集成在单片半导体集成电路基板中。 使用T-DMB和DAB低IF接收器可以去除传统的SAW滤波器，T-DMB和DAB低IF接收器可以轻松地集成在单片半导体集成电路基板中，并以低成本制造。
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2.发明公开T-DMB and DAB low intermediate frequency receiver 审中-公开Niedrige-ZwischenfrequenzEmpfängerfürT-DMB und DAB
公开(公告)号：EP1753236A1
公开(公告)日：2007-02-14
申请号：EP06118844.7
申请日：2006-08-11
CPC分类号： H03G3/3078 , H03G3/3068 , H03J1/005 , H04B1/28 , H04B1/30 , H04B7/0842 , H04H40/18
摘要： A terrestrial-digital multimedia broadcasting (T-DMB) and digital audio broadcasting (DAB) low intermediate frequency (IF) receiver comprises a low noise amplifier (LNA) 202, an image rejection down-conversion mixer 203, a low pass filter 204, an amplifier 205, a local oscillator 208, a phase-locked loop 209, and an automatic gain controller (AGC) 211. Particularly, the LNA, the image rejection down-conversion mixer, the low pass filter, the amplifier, the AGC, the local oscillator, and the phase-locked loop are integrated in monolithic semiconductor integrated circuit substrate. The AGC supplies a gain control signal to the LNA and the amplifier according to the magnitude of the RF signal, and the gain control signal is controlled by a null control signal based on a null signal comprised in a received radio frequency (RF) signal.
摘要翻译： 地面数字多媒体广播（T-DMB）和数字音频广播（DAB）低中频（IF）接收机包括低噪声放大器（LNA）202，镜像抑制下变频混频器203，低通滤波器204， 放大器205，本地振荡器208，锁相环209和自动增益控制器（AGC）211.特别地，LNA，图像抑制下变频混频器，低通滤波器，放大器，AGC， 本地振荡器和锁相环集成在单片半导体集成电路基板中。 AGC根据RF信号的大小向LNA和放大器提供增益控制信号，并且基于包含在接收的射频（RF））信号中的零信号，通过零控制信号来控制增益控制信号。
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3.发明公开T-DMB and DAB low intermediate frequency receiver 审中-公开Niedrige- ZwischenfrequenzEmpfängerfürT-DMB和DAB
公开(公告)号：EP1753233A1
公开(公告)日：2007-02-14
申请号：EP06118843.9
申请日：2006-08-11
CPC分类号： H04H40/18
摘要： Provided is a terrestrial-digital multimedia broadcasting (T-DMB) and digital audio broadcasting (DAB) low intermediate frequency (IF) receiver. A T-DMB and DAB low IF receiver comprises a low noise amplifier (LNA) 202b, an image rejection down-conversion mixer 203b, a low pass filter 204b, an amplifier 205b, a local oscillator 208b, a phase-locked loop 209b, and at least one high pass filter 211b. Particularly, the LNA, the image rejection down-conversion mixer, the low pass filter, the amplifier, the local oscillator, the phase-locked loop, and the high pass filter are integrated in a monolithic semiconductor integrated circuit substrate. The T-DMB and DAB low IF receiver allows a removal of a conventional SAW filter without degrading the performance of the receiver. Thus, the T-DMB and DAB low IF receiver can be easily integrated into a single and manufactured at low costs.
摘要翻译： 提供了地面数字多媒体广播（T-DMB）和数字音频广播（DAB）低中频（IF）接收机。 T-DMB和DAB低IF接收机包括低噪声放大器（LNA）202b，镜像抑制下变频混频器203b，低通滤波器204b，放大器205b，本地振荡器208b，锁相环209b， 和至少一个高通滤波器211b。 特别地，单片半导体集成电路基板中集成了LNA，图像抑制下变频混频器，低通滤波器，放大器，本地振荡器，锁相环和高通滤波器。 T-DMB和DAB低中频接收器允许去除传统的SAW滤波器而不降低接收机的性能。 因此，T-DMB和DAB低中频接收器可以轻松集成到单个并以低成本制造。
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