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    • 2. 发明申请
    • INTEGRATED TUNER FOR TERRESTRIAL AND CABLE TELEVISION
    • 集成调谐器用于地面和电缆电视
    • WO2006041674A2
    • 2006-04-20
    • PCT/US2005034586
    • 2005-09-29
    • PAN JIANPING
    • PAN JIANPING
    • G11B15/68
    • H03J7/02H03D7/1441H03D7/1458H03D7/1466H03D7/1483H03D7/1491H03D7/163H03D7/165H03D7/18H03D2200/0025H03D2200/0047H03J7/04H04B1/28
    • A highly integrated terrestrial and cable tuner for receiving digital and analog television signals is disclosed. It achieves high performances in sensitivity, image rejection, dynamic range, channel selectivity and power consumption. A major-images rejection converter disclosed rejects third- and fifth-order images. Thus it significantly relaxes RF filter design in a tuner of a single-stage or a first-stage zero-IF/low-IF downconversion architecture. Different architectures and frequency planning are disclosed in accordance with specifications of TV standards to improve the overall performance of the tuner with a different or configurable IF output. The tuner is integrated by using standard processes, with minimal off-chip components excluding SAW and LC filters. Small tuner modules cost less than discrete (can) tuners. They can be used in digital/analog TV sets and portable and handheld TV devices and for mobile-phone TV reception.
    • 公开了用于接收数字和模拟电视信号的高度集成的地面和电缆调谐器。 它在灵敏度,图像抑制,动态范围,通道选择性和功耗方面实现了高性能。 公开的主要图像拒绝转换器拒绝第三和第五阶图像。 因此,它在单级或第一级零中频/低中频下变频架构的调谐器中显着放宽了RF滤波器设计。 根据电视标准的规范公开了不同的架构和频率规划,以改进具有不同或可配置的中频输出的调谐器的整体性能。 调谐器通过使用标准过程进行集成,除了SAW和LC滤波器之外,还有最少的片外组件。 小调谐器模块的成本低于离散(can)调谐器。 它们可用于数字/模拟电视机,便携式和手持式电视设备以及手机电视接收中。