TI THS7365六路视频和滤波方案
TI 公司的THS7365是集成了3-SD和3-HD六阶滤波器的六路视频放大器,增益为6dB. THS7365采用互补的锗硅(SiGe) BiCom3X工艺制造,是低功耗单电源(2.7V-5V)六路集成视频缓冲放大器,有三个标清(SDTV)和三个高清(HDTV)滤波器通路,所有滤波器具有旁路六阶Butterworth滤波器特性,可用作DAC重建滤波器或ADC抗混淆滤波器.主要用于STB输出视频缓冲, PVR/DVDR/BluRay输出缓冲和低功耗视频缓冲.本文介绍了THS7365的主要特性,方框图以及多种应用电路,包括单电源DC输入/DC输出耦合视频线路驱动器, 编码器DC耦合输入/DC耦合的DAC线路驱动的六路系数框图, DC耦合线路驱动和每路双输出的六路系统, 驱动AC耦合视频线路的AC输入系统. 此外还介绍了THS7365 EVM评估板电路图和评估板材料清单(BOM).
6-Channel Video Amplifier with 3-SD and 3-HD Sixth-Order Filters and 6-dB Gain
Fabricated using the revolutionary, complementary Silicon-Germanium (SiGe) BiCom3X process, the THS7365 is a low-power, single-supply, 2.7-V to 5-V, six-channel integrated video buffer. It incorporates three standard-definition (SDTV) and three high-definition (HDTV) filter channels. All filters feature bypassable sixth-order Butterworth filter characteristics that are useful as digital-to-analog converter (DAC) reconstruction filters or as analog-to-digital converter (ADC) anti-aliasing filters.
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