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Renesas Electronics Corporation

Renesas’ Timing product portfolio has been acquired by SiTime.

Datasheets, documentation, and sample orders remain available on Renesas.com through late 2026. For new designs, purchasing, support, and product inquiries, visit SiTime.com or send an email to [email protected]. Full transition to SiTime is expected by late 2026.

FemtoClock™ NG Crystal-To-HCSL Frequency Synthesizer

Package Information

CAD Model:View CAD Model
Pkg. Type:VFQFPN
Pkg. Code:NLG32
Lead Count (#):32
Pkg. Dimensions (mm):5.0 x 5.0 x 0.9
Pitch (mm):0.5

Environmental & Export Classifications

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

Product Attributes

Lead Count (#)32
Carrier TypeReel
Moisture Sensitivity Level (MSL)3
Qty. per Reel (#)2500
Qty. per Carrier (#)0
Pb (Lead) FreeYes
Pb Free Categorye3 Sn
Temp. Range (°C)-40 to 85°C
Country of AssemblyCHINA
Country of Wafer FabricationSINGAPORE
App Jitter CompliancePCIe Gen1, PCIe Gen2, PCIe Gen3
Core Voltage (V)3.3
Divider Value1, 2, 20
Feedback Divider80 - 80
Feedback InputNo
Input Freq (MHz)25 - 25
Input TypeCrystal, LVPECL, LVDS, HCSL
Inputs (#)2
Length (mm)5
MOQ2500
Output Banks (#)4
Output Freq Range (MHz)25 - 100
Output SignalingLVCMOS, LVPECL, HCSL
Output Skew (ps)50
Output TypeLVCMOS, LVPECL, HCSL
Output Voltage (V)3.3
Outputs (#)6
Package Area (mm²)25
Phase Jitter Max RMS (ps)0.34
Pitch (mm)0.5
Pkg. Dimensions (mm)5.0 x 5.0 x 0.9
Pkg. TypeVFQFPN
Product CategoryFemtoClock, Low Jitter Clocks (<700 fs RMS)
Prog. ClockNo
Reel Size (in)13
Reference OutputYes
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Spread SpectrumNo
Tape & ReelYes
Thickness (mm)0.9
VCO Max Freq (MHz)2000
Width (mm)5
Xtal Freq (KHz)25 - 25
Xtal Inputs (#)1

Description

The 841N4830 is a 3 HCSL, 1 LVPECL and 2 LVCMOS output Synthesizer optimized to generate PCI Express reference clock frequencies. The device uses Renesas' fourth generation FemtoClock™ NG technology for synthesis of high clock frequency at very low phase noise. It provides low power consumption with good power supply noise rejection. Using a 25MHz, 12pF parallel resonant crystal, the following frequencies can be generated: 100MHz, 50MHz and 25MHz. Maximum rms phase jitter of 0.27ps, easily meets PCI Express jitter requirements. The 841N4830 is packaged in a small 32-pin VFQFN package.