SIGNAL PROCESSING SYSTEM AND ASSOCIATED METHOD
First Claim
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1. A signal processing system distributed across a first chip and a second chip, comprising:
- a first inter-chip connection circuit formed in the first chip,a second inter-chip connection circuit formed in the second chip and coupled to the first inter-chip connection circuit, anda quantity of converters for conversion between digital and analog;
each of the quantity of converters comprising;
a first portion comprising a plurality of serially coupled units forming a plurality of frequency interfaces, different ones of the frequency interfaces respectively associating with different frequencies, and each said unit converting frequencies between two consecutive ones of the frequency interfaces; and
a second portion converting between analog and an intermediate digital signal associated with a terminal one of the frequency interfaces;
wherein said first portion and said second portion of each said converter are respectively formed in the first chip and the second chip, and the first inter-chip connection circuit and the second inter-chip connection circuit are arranged to relay signaling between said first portion and said second portion of each said converter.
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Abstract
The present invention provides a signal processing system and associated method. The signal processing system includes converter(s) for conversion between digital and analog, each converter includes multiple serially coupled units forming multiple frequency interfaces respectively associating with different frequencies, and each converter is partitioned, at a selected frequency interface, to a first portion and a second portion respectively formed in the first chip and the second chip. The partitioning frequency interface is selected to reduce implement cost.
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20 Claims
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1. A signal processing system distributed across a first chip and a second chip, comprising:
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a first inter-chip connection circuit formed in the first chip, a second inter-chip connection circuit formed in the second chip and coupled to the first inter-chip connection circuit, and a quantity of converters for conversion between digital and analog;
each of the quantity of converters comprising;a first portion comprising a plurality of serially coupled units forming a plurality of frequency interfaces, different ones of the frequency interfaces respectively associating with different frequencies, and each said unit converting frequencies between two consecutive ones of the frequency interfaces; and a second portion converting between analog and an intermediate digital signal associated with a terminal one of the frequency interfaces; wherein said first portion and said second portion of each said converter are respectively formed in the first chip and the second chip, and the first inter-chip connection circuit and the second inter-chip connection circuit are arranged to relay signaling between said first portion and said second portion of each said converter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A signal processing system distributed across a first chip and a second chip, comprising:
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a first inter-chip connection circuit formed in the first chip, a second inter-chip connection circuit formed in the second chip and coupled to the first inter-chip connection circuit, and a quantity of converters;
each of the quantity of converters converting between a main digital signal and a main analog signal, and comprising;a first portion comprising a plurality of serially coupled units forming a plurality of frequency interfaces, different ones of the frequency interfaces respectively associating with different frequencies, and each said unit converting frequencies between two consecutive ones of the frequency interfaces, such that the plurality of units collectively convert between the main digital signal and an intermediate digital signal of two different sampling frequencies; and a second portion converting between the intermediate digital signal and the main analog signal; wherein the first portion and the second portion of each said converter are respectively formed in the first chip and the second chip, and the first inter-chip connection circuit and the second inter-chip connection circuit are arranged to relay signaling between the first portion and the second portion of each said converter. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A signal processing system distributed across a first chip and a second chip, comprising:
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a first inter-chip connection circuit formed in the first chip, a second inter-chip connection circuit formed in the second chip and coupled to the first inter-chip connection circuit, and a quantity of converters;
each of the quantity of converters converting between a main digital signal and a main analog signal, and comprising;a first portion comprising a plurality of serially coupled units forming a plurality of frequency interfaces, different ones of the frequency interfaces respectively associating with different frequencies, and each said unit converting frequencies between two consecutive ones of the frequency interfaces, such that the plurality of units collectively convert between the main digital signal and an intermediate digital signal of two different sampling frequencies; and a second portion converting between the main analog signal and the intermediate digital signal, and comprising;
an interface circuit converting between the intermediate digital signal and a modulation digital signal by sigma-delta modulation, and a conversion stage converting between the modulation digital signal and the main analog signal, and;wherein the first portion and the second portion of each said converter are respectively formed in the first chip and the second chip, and the first inter-chip connection circuit and the second inter-chip connection circuit are arranged to relay signaling between the first portion and the second portion of each said converter. - View Dependent Claims (20)
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Specification