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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.

Differential-to-0.7V Differential PCI Express® Jitter Attenuator

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

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

Product Attributes

Pkg. TypeVFQFPN
Lead Count (#)32
Pb (Lead) FreeYes
Carrier TypeTray
Advanced FeaturesSpread Spectrum
App Jitter CompliancePCIe Gen1, PCIe Gen2, PCIe Gen3
C-C Jitter Max P-P (ps)20
Core Voltage (V)3.3
Feedback InputNo
Input Freq (MHz)25100 - 25100
Input TypeCrystal, HCSL, LVDS, LVHSTL, LVPECL
Inputs (#)2
Length (mm)5
MOQ490
Moisture Sensitivity Level (MSL)3
Output Banks (#)2
Output Freq Range (MHz)100 - 500
Output Skew (ps)85
Output TypeHCSL
Output Voltage (V)3.3
Outputs (#)4
Package Area (mm²)25
Pb Free Categorye3 Sn
Phase Jitter Typ RMS (ps)0.608
Pitch (mm)0.5
Pkg. Dimensions (mm)5.0 x 5.0 x 0.9
Prog. ClockNo
Qty. per Carrier (#)490
Qty. per Reel (#)0
Reference OutputNo
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Spread SpectrumYes
Tape & ReelNo
Temp. Range (°C)0 to 70°C
Thickness (mm)0.9
Width (mm)5

Description

IDT's PLL-based clock generators offer sub-picosecond jitter, low-skew clock outputs, and edge rates that meet the ever-growing demands of today's networking solutions. The 871S1022 is a PLL-based clock generator specifically designed for PCI Express® Clock Generation applications. The device generates 100MHz, 125MHz, 250MHz or 500MHz from either a 25MHz fundamental mode crystal or a 100MHz recovered clock. The 871S1022 has two modes of operation: (1) high frequency jitter attenuator and (2) high performance clock synthesizer mode. When in jitter attenuator mode, the 871S1022 is able to both suppress high frequency noise components and function as a frequency translator. Designed to receive a jittery and noisy clock from an external source, the 871S1022 uses FemtoClock® technology to clean up the incoming clock and translate the frequency to one of the four common PCI Express® frequencies. When in synthesizer mode, the device is able to generate high performance SSC and non-SSC clocks from a low cost external, 25MHz, fundamental mode crystal. The 871S1022 uses FemtoClock® technology to generate low noise clock outputs capable of providing the seed frequencies for the common PCI Express® link rates.