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瑞萨电子 (Renesas Electronics Corporation)
FemtoClock NG Crystal-to-LVDS Clock Synthesizer

封装信息

CAD 模型:View CAD Model
Pkg. Type:VFQFPN
Pkg. Code:NLG48
Lead Count (#):48
Pkg. Dimensions (mm):7.0 x 7.0 x 0.9
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 (#)48
Carrier TypeReel
Moisture Sensitivity Level (MSL)3
Qty. per Reel (#)2000
Qty. per Carrier (#)0
Pb (Lead) FreeYes
Pb Free Categorye3 Sn
Temp. Range (°C)-40 to 85°C
C-C Jitter Max P-P (ps)6.7
Core Voltage (V)2.5
Feedback InputNo
Input Freq (MHz)25 - 25
Input TypeCrystal, LVCMOS
Inputs (#)2
Length (mm)7
MOQ2000
Output Banks (#)5
Output Freq Range (MHz)25 - 25, 50 - 50, 100 - 100, 125 - 125, 156.25 - 156.25
Output TypeLVDS
Output Voltage (V)2.5
Outputs (#)6
Package Area (mm²)49
Phase Jitter Max RMS (ps)0.34
Phase Jitter Typ RMS (ps)0.25
Pitch (mm)0.5
Pkg. Dimensions (mm)7.0 x 7.0 x 0.9
Pkg. TypeVFQFPN
Product CategoryFemtoClock, Ultra-Low Jitter Clocks (<300 fs RMS)
Prog. ClockNo
Reel Size (in)13
Reference OutputNo
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Spread SpectrumNo
Tape & ReelYes
Thickness (mm)0.9
Width (mm)7

描述

The 844N255I is a 6-output clock synthesizer designed for wireless infrastructure clock applications. The device uses Renesas' fourth generation FemtoClock™ NG technology for an optimum of high clock frequency and low phase noise performance, combined with low power consumption and high power supply noise rejection. The reference frequency is selectable and the following frequency is supported: 25MHz. The synthesizer generates selectable 156.25MHz, 125MHz, 100MHz, 50MHz and 25MHz clock signals. The device is optimized for very low phase noise and cycle-to-cycle jitter. The synthesized clock frequency and the phase-noise performance are optimized for driving SRIO 1.3 and 2.0 SerDes reference, DSP, and host-processor clocks. The device supports a 2.5V voltage supply and is packaged in a small, lead-free (RoHS 6) 48-lead VFQFN package. The extended temperature range supports wireless infrastructure, telecommunication, and networking end equipment requirements.