PDH 和 SONET/SDH 时钟

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Renesas 的 WAN （广域网） PLL 专为实现 PDH、SONET/SDH 和 TDM 设备及接口的同步而设计。这些器件符合 SEC （SDH 设备时钟）的 ITU-T 建议以及 4 层、4E 层、3 层和 SONET 最小时钟的 ATIS/ANSI 要求。 Renesas WAN PLL 具有如下功能：可选环路滤波器、延迟、不中断参考切换、相位斜率限制和时钟冗余。

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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	Pkg. Type	Lead Count (#)
(14) 推荐产品 (2) 衍生产品	Clock Generator Jitter Attenuator Port Synchronizer System Synchronizer	G.813 G.8262 GR-1244-CORE GR-253-CORE	1 2	12-Output Clock Generator with Four Dividers 4-Output Clock Generator 4-Output Jitter Attenuator or Clock Generator 8-Output Jitter Attenuator and Clock Generator DCO External Feedback External Sync Input Fractional-N Input Dividers Fractional-N PLL Full SETS (ITU-T G.8264) Hitless Reference Switching LOS Inputs OTP Programmable Clock Programmable Hitless Reference Switching VCXO-based APLL	0 2 3 4 6 14	0 1 2 4 6	1PPS (1 Hz) Composite Clock (G.703 64kbps) DS1 E1 Ethernet OTN SONET/SDH Sync Pulse TDM	1000BASE-T/X 100BASE-T 10GBASE-R 1PPS (1 Hz) Composite Clock (G.703 64kbps) DS1 DS2 DS3 E1 E3 OTU-1 OTU-2 STM-1/OC-3 STM-16/OC-48 STM-4/OC-12 STM-64/OC-192/10GBASE-W TDM XGMII/XAUI	0.067 0.079 0.08 0.089 0.095 0.2 0.23 0.276 0.28 0.35 0.56	4 8 12 14	4 6 8 11	CABGA VFQFPN	24 28 40 48 56 64 72 144
器件号	Logical Operator	Logical Operator	Logical Operator	Logical Operator	Logical Operator	Logical Operator	Logical Operator	Logical Operator	Logical Operator	Logical Operator	Logical Operator	Logical Operator	Logical Operator
8T49N240 PDF 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...	0.2	4	4	VFQFPN	40
8T49N241 PDF 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...	0.35	4	4	VFQFPN	40
8T49N242 PDF 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	VFQFPN	40
8T49N285 PDF 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	VFQFPN	56
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	VFQFPN	72
8T49N287 PDF FemtoClock NG Universal Frequency Translator (2-in/2-PLL/8-out)	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	VFQFPN	56
8V41NS0412 PDF FemtoClock™ NG 12-Output Clock Generator	Clock Generator		1	12-Output Clock Generator with Four Dividers, Programmable Clock	2	2			0.095	12	11	VFQFPN	64
8V49NS0312 PDF FemtoClock™ NG 12-Output Clock Generator	Clock Generator		1	12-Output Clock Generator with Four Dividers, Programmable Clock	2	2			0.089	12	11	VFQFPN	64
8V49NS0412 PDF FemtoClock™ NG 12-Output Clock Generator	Clock Generator		1	12-Output Clock Generator with Four Dividers, Programmable Clock	2	2			0.08	12	11	VFQFPN	64
RC22504A PDF FemtoClock™ 2 Clock Generator	Clock Generator		1	4-Output Clock Generator	2	1			0.079	4	4	VFQFPN	24
RC22514A PDF FemtoClock™ 2 Clock Generator	Clock Generator		1	4-Output Clock Generator	0	0			0.079	4	4	VFQFPN	28
RC32504A PDF 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	VFQFPN	24
RC32508A PDF FemtoClock 2 Jitter Attenuator or Clock Generator				8-Output Jitter Attenuator and Clock Generator	3				0.067	8	8	VFQFPN	48
RC32514A PDF 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	VFQFPN	28

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