JP2020522931A - 差動入力レシーバを実現するための回路および方法 - Google Patents
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- H04L25/00—Baseband systems
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- H04L25/0292—Arrangements specific to the receiver end
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- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/111—Indexing scheme relating to amplifiers the amplifier being a dual or triple band amplifier, e.g. 900 and 1800 MHz, e.g. switched or not switched, simultaneously or not
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- H03F2200/429—Two or more amplifiers or one amplifier with filters for different frequency bands are coupled in parallel at the input or output
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- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
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- H03F2203/45101—Control of the DC level being present
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- H03F2203/45138—Two or more differential amplifiers in IC-block form are combined, e.g. measuring amplifiers
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- H03F2203/45512—Indexing scheme relating to differential amplifiers the FBC comprising one or more capacitors, not being switched capacitors, and being coupled between the LC and the IC
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- H03F2203/45678—Indexing scheme relating to differential amplifiers the LC comprising offset generating means
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- H03K19/0175—Coupling arrangements; Interface arrangements
- H03K19/0185—Coupling arrangements; Interface arrangements using field effect transistors only
- H03K19/018507—Interface arrangements
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Abstract
Description
以下で説明される回路および方法は、レシーバ(RX)入力パッドに結合されるレシーバ回路に配置され得るインターフェース回路を開示する。インターフェース回路は、従来の50オーム終端に適合し、信号コモンモードを最適なトランスミッタ(TX)のレベル(すなわちレシーバ入力パッドにおいて受信されるレベル)からレシーバの信号処理回路(たとえば連続時間線形イコライザ(CTLE:continuous time linear equalizer))のための最適なレベルに変換しながら、広帯域特性を有する入力信号を、レシーバ入力パッドから入力レシーバチェーン回路へ伝達するか、または結合し得る。
Claims (15)
- 差動入力レシーバを実現するための回路であって、
入力回路と、
第1出力回路と、
第2出力回路とを備え、
前記入力回路は、差動の入力信号を受けるように構成された第1入力ノードおよび第2入力ノードを有し、
前記第1出力回路は、前記第1入力ノードおよび第1出力ノードの間に結合された第1キャパシタと、前記第2入力ノードおよび第2出力ノードの間に結合された第2キャパシタとを有し、第1周波数範囲内に前記入力信号がある場合、前記第1出力ノードおよび前記第2出力ノードにおいて出力信号を生成し、
前記第2出力回路は、増幅器を含み、前記増幅器は、前記第1入力ノードに結合された第1増幅器入力と、前記第2入力ノードに結合された第2増幅器入力とを有し、前記第2出力回路は、前記第1周波数範囲よりも低い範囲に延在する第2周波数範囲に前記入力信号がある場合に出力信号を生成する、回路。 - 前記第1入力ノードおよび第1増幅器入力の間に結合された第1抵抗と、
前記第1増幅器入力および第1増幅器出力の間に結合された第2抵抗と、
前記第2入力ノードおよび第2増幅器入力の間に結合された第3抵抗と、
前記第2増幅器入力および第2増幅器出力の間に結合された第4抵抗とをさらに備える、請求項1に記載の回路。 - 前記第1増幅器出力および前記第1出力ノードの間に結合された第1出力抵抗と、
前記第2増幅器出力および前記第2出力ノードの間に結合された第2出力抵抗とをさらに備える、請求項2に記載の回路。 - 前記増幅器の第1出力において第1電圧を生成するように構成された第1オフセット補償回路をさらに備える、請求項3に記載の回路。
- 前記第2抵抗は、第1抵抗分割回路網を形成する第1直列接続抵抗を含み、
前記第1オフセット補償回路は、前記第1抵抗分割回路網のノードにおける第1オフセット電圧を制御するように構成された電流源を含む、請求項4に記載の回路。 - 前記増幅器の第2出力において第2電圧を生成するように構成された第2オフセット補償回路をさらに備える、請求項5に記載の回路。
- 前記第3抵抗は、第2抵抗分割回路網を形成する第2直列接続抵抗を含み、
前記第2オフセット補償回路は、前記第2抵抗分割回路網のノードにおける第2オフセット電圧を制御するように構成された電流源を含む、請求項6に記載の回路。 - 前記増幅器回路にコモンモード制御信号を提供するように構成された制御回路をさらに備える、請求項1に記載の回路。
- 差動入力レシーバを実現する方法であって、
差動の入力信号を受けるように第1入力ノードおよび第2入力ノードを構成することと、
前記第1入力ノードおよび第1出力ノードの間に第1キャパシタを結合することと、
前記第2入力ノードおよび第2出力ノードの間に第2キャパシタを結合することと、
第1周波数範囲に前記入力信号がある場合、前記第1出力ノードおよび前記第2出力ノードにおいて出力信号を生成することと、
増幅器の第1増幅器入力を前記第1入力ノードに結合するとともに前記増幅器の第2増幅器入力を前記第2入力ノードに結合することと、
前記第1周波数範囲よりも低い範囲に延在する第2周波数範囲に前記入力信号がある場合に前記増幅器の出力に基づいて出力信号を生成することとを含む、方法。 - 前記第1入力ノードおよび第1増幅器入力の間に第1抵抗を結合することと、
前記第1増幅器入力および第1増幅器出力の間に第2抵抗を結合することと、
前記第2入力ノードおよび第2増幅器入力の間に第3抵抗を結合することと、
前記第2増幅器入力および第2増幅器出力の間に第4抵抗を結合することとをさらに含む、請求項9に記載の方法。 - 前記第1増幅器出力および前記第1出力ノードの間に第1出力抵抗を結合することと、
前記第2増幅器出力および前記第2出力ノードの間に第2出力抵抗を結合することとをさらに含む、請求項10に記載の方法。 - 前記増幅器の第1出力において第1電圧を生成するように第1オフセット補償回路を構成することをさらに含む、請求項11に記載の方法。
- 前記第2抵抗は、第1抵抗分割回路網を形成する第1直列接続抵抗を含み、
前記第1オフセット補償回路は、前記第1抵抗分割回路網のノードにおける第1オフセット電圧を制御するように構成された電流源を含む、請求項12に記載の方法。 - 前記増幅器の第2出力において第2電圧を生成するように第2オフセット補償回路を構成することをさらに含む、請求項13に記載の方法。
- 前記第3抵抗は、第2抵抗分割回路網を形成する第2直列接続抵抗を含み、
前記第2オフセット補償回路は、前記第2抵抗分割回路網のノードにおける第2オフセット電圧を制御するように構成された電流源を含む、請求項14に記載の方法。
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US15/612,826 | 2017-06-02 | ||
US15/612,826 US9966908B1 (en) | 2017-06-02 | 2017-06-02 | Circuit for and method of implementing a differential input receiver |
PCT/US2018/034952 WO2018222621A1 (en) | 2017-06-02 | 2018-05-29 | Circuit for and method of implementing a differential input receiver |
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- 2018-05-29 KR KR1020197038699A patent/KR102574325B1/ko active IP Right Grant
- 2018-05-29 CN CN201880046666.7A patent/CN110915135B/zh active Active
- 2018-05-29 JP JP2019566281A patent/JP7316224B2/ja active Active
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Also Published As
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KR20200013245A (ko) | 2020-02-06 |
US9966908B1 (en) | 2018-05-08 |
KR102574325B1 (ko) | 2023-09-04 |
WO2018222621A1 (en) | 2018-12-06 |
CN110915135A (zh) | 2020-03-24 |
JP7316224B2 (ja) | 2023-07-27 |
EP3631982A1 (en) | 2020-04-08 |
CN110915135B (zh) | 2023-10-27 |
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