Video amplifier circuits for multi-output distribution of video signals
First Claim
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1. A video amplifier circuit comprising:
- a first stage amplifier having a high signal gain and a low noise figure and having an input coupled to a video input signal and an output;
a second stage amplifier having a high output power and a low distortion and having an input electrically coupled to the output of the first stage amplifier and an output; and
a splitter circuit having an input coupled to the output of the second stage amplifier and a plurality of outputs.
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Abstract
Video amplifier circuits and cable/video distribution modules including video amplifier circuits are provided. The video amplifier circuits include a first stage amplifier having a high signal gain and a low noise figure and having an input coupled to a video input signal and an output. A second stage amplifier having a high output power and a low distortion has an input electrically coupled to the output of the first stage amplifier and an output. A splitter circuit has an input coupled to the output of the second stage amplifier and a plurality of outputs.
13 Citations
27 Claims
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1. A video amplifier circuit comprising:
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a first stage amplifier having a high signal gain and a low noise figure and having an input coupled to a video input signal and an output;
a second stage amplifier having a high output power and a low distortion and having an input electrically coupled to the output of the first stage amplifier and an output; and
a splitter circuit having an input coupled to the output of the second stage amplifier and a plurality of outputs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cable distribution module for routing a DOCSIS compatible connection with a cable network to a plurality of connection points, the module comprising:
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a cable input configured to be connected to the cable network;
a diplexer circuit electrically coupled to the cable input that splits a signal on the cable input into a forward and a return channel;
a return channel amplifier circuit electrically coupled between the plurality of connection points and the diplexer circuit on the return channel;
a two stage amplifier circuit electrically coupled between the diplexer circuit and the plurality of connection points on the forward channel, the two stage amplifier circuit including a first stage amplifier having a high signal gain and a low noise figure and a second stage amplifier having a high output power and a low distortion;
a combiner circuit coupling the return channel amplifier circuit and the two stage amplifier circuit to the plurality of connection points; and
a splitter circuit coupling the combiner circuit to the plurality of connection points. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A video distribution module for routing a video connection to a plurality of connection points, the module comprising:
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a video input configured to receive a video signal from at least one of an antenna or a cable network;
a two stage amplifier circuit electrically coupled between the video input and the plurality of connection points, the two stage amplifier circuit including a first stage amplifier having a high signal gain and a low noise figure and a second stage amplifier having a high output power and a low distortion; and
a splitter circuit coupled between the two stage amplifier circuit and the plurality of connection points. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification