JP2017502588A - データ受信器および集積回路にデータ受信器を実装する方法 - Google Patents
データ受信器および集積回路にデータ受信器を実装する方法 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03878—Line equalisers; line build-out devices
- H04L25/03885—Line equalisers; line build-out devices adaptive
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
- H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
- H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
- H04L7/002—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation
- H04L7/0025—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation interpolation of clock signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
- H04L7/0062—Detection of the synchronisation error by features other than the received signal transition detection of error based on data decision error, e.g. Mueller type detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
- H04L7/0331—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop with a digital phase-locked loop [PLL] processing binary samples, e.g. add/subtract logic for correction of receiver clock
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
- H04L7/0334—Processing of samples having at least three levels, e.g. soft decisions
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
本発明は、一般的に集積回路装置に関し、特に、データ受信器、およびデータ受信器を集積回路装置に実装する方法に関する。
全体として電子機器の動作が集積回路装置の動作に依存するため、集積回路装置は、多くの電子機器の重要な部分となっている。データ伝送は、多くの集積回路装置の重要な要素である。データ伝送の速度および信頼度は、電子機器の動作に影響を与える。データは、シリアルデータまたはパラレルデータとして伝送することができる。シリアライザ−デシリアライザ(Serdes)送受信器は、マルチギガビット送受信器として知られており、極めて高速で、デジタルデータをバックプレーンの間に通信することに広く使用されている。Serdes送受信器の受信器は、データ信号のアイを開くための等化ブロックと、アイを最適にストローブすることができるように、データからクロックを再生するためのクロックおよびデータ再生(CDR)ブロックとを含む2つの重要な機能ブロックを備える。
集積回路に実装されるデータ受信器が開示される。データ受信器は、データ信号を受信する入力端と、データ信号を受信するように接続された第1の等化回路と、データ信号を受信するように接続された第2の等化回路とを備え、第1の等化回路は、データ信号のデータを受信するのに用いられ、第2の等化回路は、クロック位相オフセットを調整するように構成される。
以下に説明されるさまざまな回路および方法は、集積回路に実装されるデータ受信器に関するものである。これらの回路および方法は、異なる等化器およびCDR回路をデータ受信器に実装することによって、たとえば、データ受信器を集積回路に選択的に実装することによって、回路の要件を低減し、性能を向上させる。より具体的には、データを受信する機能およびクロック位相オフセットを調整する機能を別々に実行するように、別体のCDR回路を実装する。たとえば、データを受信するように、アレキサンダCDR回路を実装し、クロック位相オフセットを調整するように、ミューラー・ミュラー(Mueller-Muller)CDR回路を同一の回路に実装することができる。別体の等化回路は、特定のCDR回路用に選択され、異なるCDR回路とともに実装される。
Claims (15)
- 集積回路に実装されるデータ受信器であって、
前記データ受信器は、
データ信号を受信する入力端と、
前記入力端に接続された第1の線形等化回路と、
前記データ信号のデータを受信するように構成された第1のクロックおよびデータ再生回路とを備え、前記第1のクロックおよびデータ再生回路は、前記第1の線形等化器回路に接続された第1のレジスタを制御するための第1のクロック信号の生成を可能にし、
前記入力端に接続された第2の線形等化回路を備え、前記第2の線形等化器は、第1の線形等化器とは異なり、
クロック位相オフセットを調整するように構成された第2のクロックおよびデータ再生回路を備え、前記第2のクロックおよびデータ再生回路は、前記第2の線形等化器に接続された第2のレジスタを制御するための第2のクロック信号の生成を可能にする、データ受信器。 - 前記データ信号のデータを受信するように構成された前記第1のクロックおよびデータ再生回路は、データビットの間の主要交差を用いて、前記データ信号内のクロックタイミング情報を抽出する、請求項1に記載のデータ受信器。
- 前記第1のクロックおよびデータ再生回路は、アレキサンダクロックおよびデータ再生回路を含む、請求項1または2に記載のデータ受信器。
- クロック位相オフセットを調整するように構成された前記第2のクロックおよびデータ再生回路は、データビットの間の非主要交差を用いて、前記データ信号内のクロックタイミング情報を抽出する、請求項1〜3に記載のデータ受信器。
- クロック位相オフセットを調整するように構成された前記第2のクロックおよびデータ再生回路は、ミューラー・ミュラー回路を含む、請求項1〜4に記載のデータ受信器。
- 前記第1の線形等化回路は、ロングテール連続時間線形等化回路を含む、請求項1〜5に記載のデータ受信器。
- 前記第2の線形等化回路は、チャネル反転連続時間線形等化回路を含む、請求項1〜6に記載のデータ受信器。
- 前記第1の線形等化回路の出力端に接続された判定帰還等化器をさらに含む、請求項1〜7に記載のデータ受信器。
- データ受信器を集積回路に実装する方法であって、
前記方法は、
データ信号を受信するステップと、
前記データ信号を第1の線形等化回路にカップリングするステップと、
前記データ信号のデータを再生するように、前記データ受信器に第1のクロックおよびデータ再生回路を実装するステップとを備え、前記第1のクロックおよびデータ再生回路は、前記第1の線形等化器回路に接続された第1のレジスタを制御するための第1のクロック信号の生成を可能にし、
前記データ信号を第2の線形等化回路にカップリングするステップを備え、前記第2の線形等化回路は、前記第1の線形等化回路とは異なり、
クロック位相オフセットを調整するように、前記データ受信器に第2のクロックおよびデータ再生回路を実装するステップを備え、前記第2の線形等化器に接続された第2のレジスタを制御するための第2のクロック信号の生成を可能にする、方法。 - 前記第1の線形等化回路は、ロングテール連続時間線形等化回路を含む、請求項9に記載の方法。
- 前記第2の等化回路は、チャネル反転連続時間線形等化回路を含む、請求項9および10に記載の方法。
- 前記第2のクロックおよびデータ再生回路は、前記第1のクロックおよびデータ再生回路とは異なる、請求項9〜11に記載の方法。
- 前記データ信号のデータを再生するように第1のクロックおよびデータ再生回路を実装するステップは、アレキサンダクロックおよびデータ再生回路の実装を含む、請求項9〜12に記載の方法。
- クロック位相オフセットを調整するように第2のクロックおよびデータ再生回路を実装するステップは、ミューラー・ミュラークロックおよびデータ再生回路の実装を含む、請求項9〜13に記載の方法。
- 前記第1の線形等化回路の出力端に判定帰還等化器を接続するステップをさらに含む、請求項9に記載の方法。
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PCT/US2014/069608 WO2015094865A1 (en) | 2013-12-19 | 2014-12-10 | Data receivers and methods of implementing data receivers in an integrated circuit |
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US9325489B2 (en) | 2016-04-26 |
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