共查询到20条相似文献,搜索用时 31 毫秒
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采用Chartered 0.35μm CMOS工艺设计了一种适用于光纤传输系统STM-16(2.5Gb/s)速率级的低功耗、宽动态范围的前置放大器.该前置放大器采用RGC(Regulated Cascode)结构作为输入级,同时引入消直流电路来提高光电流的过载能力.仿真结果表明,前置放大器的跨阻增益为57.0dBΩ,-3dB带宽为2.003GHz;当误码率BER为10~(-12)时,输入灵敏度为-23.0dBm,过载光电流达到800 μ A.3.3V单电源供电时,功耗仅为59.43mW.芯片面积为465 μm × 435 μm. 相似文献
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采用0.35μm CM O S工艺设计了用于光纤传输系统的低功耗16∶1复接器,实现了将16路155.52M b/s数据复接成一路2.5G b/s的数据输出的功能。该复接器以混合结构形式实现:低速部分采用串行结构,高速部分采用树型结构。具体电路由锁存器、选择器及分频器组成,以CM O S逻辑和源极耦合逻辑(SCL)实现。用Sm art SP ICE软件进行仿真的结果显示:在3.3V供电时,整体电路的复接输出最高工作速度可达3.5G b/s,功耗小于300mW。 相似文献
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低功耗0.35μm CMOS 2.5Gb/s 16:1复接器设计 总被引:1,自引:0,他引:1
采用0.35μm CMOS工艺设计了用于光纤传输系统的低功耗16:1复接器,实现了将16路155.52Mb/s数据复接成一路2.5Gb/s的数据输出的功能.该复接器以混合结构形式实现:低速部分采用串行结构,高速部分采用树型结构.具体电路由锁存器、选择器及分频器组成,以CMOS逻辑和源极耦合逻辑(SCL)实现.用Smart SPICE软件进行仿真的结果显示:在3.3V供电时,整体电路的复接输出最高工作速度可达3.5Gb/s,功耗小于300mW. 相似文献
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This paper presents a 0.18μm CMOS 6.25 Gb/s equalizer for high speed backplane communication. The proposed equalizer is a combined one consisting of a one-tap feed-forward equalizer (FFE) and a two-tap half-rate decision feedback equalizer (DFE) in order to cancel both pre-cursor and post-cursor ISI. By employing an active-inductive peaking circuit for the delay line, the bandwidth of the FFE is increased and the area cost is minimized. CML-based circuits such as DFFs, summers and multiplexes all help to improve the speed of DFEs. Measurement results illustrate that the equalizer operates well when equalizing 6.25 Gb/s data is passed over a 30-inch channel with a loss of 22 dB and consumes 55.8 mW with the supply voltage of 1.8 V. The overall chip area including pads is 0.3 × 0.5 mm^2. 相似文献
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