Device including a plurality of analog circuits and an interface that matches characteristics of the analog circuits
First Claim
1. An electronic device comprising:
- a first analog circuit having a first direct current (DC) offset at an output;
a second analog circuit having a second DC offset at an input;
an interface circuit connecting said output to said input and configured to match said first and second DC offsets.
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Accused Products
Abstract
According to one embodiment, a compact low-power receiver comprises first and second analog circuits connected by a digitally controlled interface circuit. The first analog circuit has a first direct-current (DC) offset and a first common mode voltage at an output, and the second analog circuit has a second DC offset and a second common mode voltage at an input. The digitally controlled interface circuit connects the output to the input, and is configured to match the first and second DC offsets and to match the first and second common mode voltages. In one embodiment, the first analog circuit is a variable gain control transimpedance amplifier (TIA) implemented using a current mode buffer, the second analog circuit is a second-order adjustable low-pass filter, whereby a three-pole adjustable low-pass filter in the compact low-power receiver is effectively produced.
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Citations
21 Claims
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1. An electronic device comprising:
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a first analog circuit having a first direct current (DC) offset at an output; a second analog circuit having a second DC offset at an input; an interface circuit connecting said output to said input and configured to match said first and second DC offsets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic device comprising:
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a first analog circuit having a first common mode voltage at an output; a second analog circuit having a second common mode voltage at an input; an interface circuit connecting said output to said input and configured to match said first and second common mode voltages. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An electronic device comprising:
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a first analog circuit; a second analog circuit; and an interface connecting an output of the first analog circuit to an input of the second analog circuit, wherein the interface is configured to match at least one of a first direct-current (DC) offset at an output of the first analog circuit and a second DC offset at an input of the second analog circuit; and a first common mode voltage at the output of the first analog circuit and a second common mode voltage at the input of the second analog circuit. - View Dependent Claims (20, 21)
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Specification