クロック&タイミング

RenesasのWAN（広域ネットワーク）向けPLLは、PDH、SONET/SDH、TDMに対応した機器／インタフェースの同期の実現に向けて設計されています。各製品は、SEC（SDH Equipment Clock）に関するITU-T勧告に準拠するとともに、Stratum 3/4E/4やSONETの最小クロックに対するTelcordiaとATIS/ANSIの要件も満足しています。Renesas社のWAN向けPLLは、選択可能なループ・フィルタ、ホールドオーバー、ヒットレス・リファレンス・スイッチング、位相スロープ制限、クロックの冗長構成などの機能を提供します。

Timing Fabric for Communications Equipment Overview (PDF)

セレクションテーブル

    Processing table
    Application
    Clock Support
    Channels (#)
    Advanced Features
    Inputs (#)
    Diff. Inputs
    Input Freq Range Type
    Output Freq Range Type
    Phase Jitter Typ RMS (ps)
    Outputs (#)
    Diff. Outputs
    型名
    8T49N240
    FemtoClock™ NGユニバーサル周波数トランスレータ    		 Jitter Attenuator, Port Synchronizer 1
    External Feedback, Fractional-N PLL, OTP and more...
    		 2 2 DS1, E1, Ethernet, OTN, SONET/SDH, TDM
    10GBASE-R, 100BASE-T, 1000BASE-T/X, DS1, DS2, DS3, E1, E3 and more...
    		 0.2 4 4
    8T49N241
    FemtoClock™ NGユニバーサル周波数トランスレータ    		 Jitter Attenuator, Port Synchronizer 1
    External Feedback, Fractional-N PLL, OTP and more...
    		 2 2 DS1, E1, Ethernet, OTN, SONET/SDH, TDM
    10GBASE-R, 100BASE-T, 1000BASE-T/X, DS1, DS2, DS3, E1, E3 and more...
    		 0.35 4 4
    8T49N242
    FemtoClock™ NG Universal Frequency Translator    		 Jitter Attenuator, Port Synchronizer 1
    External Feedback, Fractional-N PLL, OTP and more...
    		 2 2 DS1, E1, Ethernet, OTN, SONET/SDH, TDM
    10GBASE-R, 100BASE-T, 1000BASE-T/X, DS1, DS2, DS3, E1, E3 and more...
    		 0.276 4 4
    8T49N285
    FemtoClock NG Universal Frequency Translator (2-in/1-PLL/8-out)    		 Jitter Attenuator, Port Synchronizer 2
    External Feedback, Fractional-N PLL and more...
    		 2 4 DS1, E1, Ethernet, OTN, SONET/SDH, TDM
    10GBASE-R, 100BASE-T, 1000BASE-T/X, DS1, DS2, DS3, E1, E3 and more...
    		 0.28 8 8
    8T49N286
    FemtoClock NG Universal Frequency Translator (4-in/2-PLL/8-out)    		 Jitter Attenuator, Port Synchronizer 2
    External Feedback, Fractional-N PLL and more...
    		 4 4 DS1, E1, Ethernet, OTN, SONET/SDH, TDM
    10GBASE-R, 100BASE-T, 1000BASE-T/X, DS1, DS2, DS3, E1, E3 and more...
    		 0.28 8 8
    8T49N287
    FemtoClock™ NGユニバーサル周波数トランスレータ（2入力/2-PLL/8出力）    		 Jitter Attenuator, Port Synchronizer 2
    External Feedback, Fractional-N PLL and more...
    		 2 2 DS1, E1, Ethernet, OTN, SONET/SDH, TDM
    10GBASE-R, 100BASE-T, 1000BASE-T/X, DS1, DS2, DS3, E1, E3 and more...
    		 0.28 8 8
    8V41NS0412
    FemtoClock™ NG 12-Output Clock Generator    		 Clock Generator 1 12-Output Clock Generator with Four Dividers, Programmable Clock 2 2 0.095 12 11
    8V49NS0312
    FemtoClock™ NG 12-Output Clock Generator    		 Clock Generator 1 12-Output Clock Generator with Four Dividers, Programmable Clock 2 2 0.089 12 11
    8V49NS0412
    FemtoClock™ NG 12出力クロックジェネレータ    		 Clock Generator 1 12-Output Clock Generator with Four Dividers, Programmable Clock 2 2 0.08 12 11
    RC22504A
    FemtoClock™ 2 Clock Generator    		 Clock Generator 1 4-Output Clock Generator 2 1 0.079 4 4
    RC22514A
    FemtoClock™ 2 Clock Generator    		 Clock Generator 1 4-Output Clock Generator 0 0 0.079 4 4
    RC32504A
    FemtoClock™ 2 Jitter Attenuator or Clock Generator    		 Clock Generator, Jitter Attenuator 1 4-Output Jitter Attenuator or Clock Generator 3 1 0.079 4 4
    RC32508A
    FemtoClock 2 Jitter Attenuator or Clock Generator    		 8-Output Jitter Attenuator and Clock Generator 3 0.067 8 8
    RC32514A
    FemtoClock™ 2 Jitter Attenuator or Clock Generator    		 Clock Generator, Jitter Attenuator 1 4-Output Jitter Attenuator or Clock Generator 3 1 0.079 4 4
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