跳转到主要内容
瑞萨电子 (Renesas Electronics Corporation)

瑞萨电子的时序产品组合已被 SiTime 收购。

数据手册、文档以及样品订购仍将通过 Renesas.com 官网提供,直至 2026 年底。如需新设计、采购、技术支持以及产品咨询,请访问 SiTime.com 官网或发送电子邮件至 [email protected]。预计于 2026 年底前全面过渡至 SiTime。

FemtoClock NG Universal Frequency Translator (2-in/1-PLL/8-out)

封装信息

CAD 模型:View CAD Model
Pkg. Type:VFQFPN
Pkg. Code:NLG56
Lead Count (#):56
Pkg. Dimensions (mm):8.0 x 8.0 x 0.85
Pitch (mm):0.5

环境和出口类别

Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090

产品属性

Lead Count (#)56
Carrier TypeTray
Moisture Sensitivity Level (MSL)3
Advanced FeaturesProgrammable Hitless Reference Switching, Fractional-N PLL, External Feedback
Phase Jitter Typ RMS (ps)0.27
Qty. per Reel (#)0
Reference OutputYes
Qty. per Carrier (#)260
Pb (Lead) FreeYes
Pb Free Categorye3 Sn
Temp. Range (°C)-40 to 85°C
Country of AssemblyTAIWAN
Country of Wafer FabricationSINGAPORE
ApplicationPort Synchronizer
Channels (#)1
Core Voltage (V)2.5V, 3.3V
Diff. Inputs2
Diff. Outputs8
Family NameUFT (Gen 3)
Feedback InputYes
Fractional Output Dividers (#)2
Input Freq (MHz)0.008 - 875
Input Freq Range TypeTDM, DS1, E1, SONET/SDH, Ethernet, OTN
Input TypeLVCMOS, LVTTL, HCSL, LVHSTL, LVDS, LVPECL
Inputs (#)2
Length (mm)8
Loop Bandwidth Range (Hz)0.25 - 512
MOQ260
Output Banks (#)4
Output Freq Range (MHz)0.008 - 1000
Output Freq Range TypeTDM, DS1, E1, DS2, E3, DS3, 100BASE-T, STM-1/OC-3, STM-4/OC-12, 1000BASE-T/X, STM-16/OC-48, OTU-1, STM-64/OC-192/10GBASE-W, 10GBASE-R, OTU-2, XGMII/XAUI
Output SignalingLVPECL, LVDS, LVCMOS
Output Skew (ps)45
Output TypeLVCMOS, LVDS, LVPECL
Output Voltage (V)2.5V, 3.3V
Outputs (#)8
Package Area (mm²)64
Phase Jitter Typ RMS (fs)270
Pitch (mm)0.5
Pkg. Dimensions (mm)8.0 x 8.0 x 0.85
Pkg. TypeVFQFPN
Price (USD)$14.92262
Product CategoryFemtoClock NG, Jitter Attenuators, Universal Frequency Translators
Prog. ClockYes
Prog. InterfaceI2C
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Spread SpectrumNo
Tape & ReelNo
Thickness (mm)0.85
VCO Max Freq (MHz)4000
VCO Min Freq (MHz)3000
Width (mm)8
Xtal Freq (KHz)10000 - 40000

描述

The 8T49N281i has one fractional-feedback PLL that can be used as a jitter attenuator or frequency translator. It is equipped with six integer and two fractional output dividers, allowing the generation of up to eight different output frequencies, ranging from 8kHz to 1GHz. Three of these frequencies are completely independent of each other and the inputs. The other five are related frequencies. The eight outputs may select among LVPECL, LVDS, or LVCMOS output levels.

Renesas' third-generation Universal Frequency Translator family also includes the 8T49N282i (4-in/2-PLL/8-out) and the 8T49N283i (2-in/2-PLL/8-out).

To see other devices in this product family, visit the Universal Frequency Translators page.