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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 Crystal/LVCMOS-to-LVPECL/ LVCMOS Frequency Synthesizer

Package Information

CAD Model:View CAD Model
Pkg. Type:TSSOP
Pkg. Code:EJG24
Lead Count (#):24
Pkg. Dimensions (mm):7.8 x 4.4 x 1.0
Pitch (mm):0.65

Environmental & Export Classifications

Moisture Sensitivity Level (MSL)1
Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090

Product Attributes

Lead Count (#)24
Carrier TypeTube
Moisture Sensitivity Level (MSL)1
Pb (Lead) FreeYes
Pb Free Categorye3 Sn
Temp. Range (°C)-40 to 85°C
Advanced FeaturesReference Output
App Jitter CompliancePCIe
Core Voltage (V)2.5V, 3.3V
Feedback InputNo
Input Freq (MHz)19.44 - 27
Input TypeCrystal, LVCMOS
Inputs (#)3
Length (mm)7.8
MOQ62
Output Banks (#)2
Output Freq Range (MHz)19.44 - 27, 70 - 637.5
Output TypeLVCMOS, LVPECL
Output Voltage (V)2.5V, 3.3V
Outputs (#)2
Package Area (mm²)34.3
Phase Jitter Typ RMS (ps)0.97
Pitch (mm)0.65
Pkg. Dimensions (mm)7.8 x 4.4 x 1.0
Pkg. TypeTSSOP
Product CategoryFemtoClock, Low Jitter Clocks (<700 fs RMS)
Prog. ClockNo
Qty. per Carrier (#)62
Qty. per Reel (#)0
Reference OutputYes
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Spread SpectrumNo
Tape & ReelNo
Thickness (mm)1
Width (mm)4.4

Description

The 843001I-23 is a highly versatile, low phase noise LVPECL/LVCMOS synthesizer that can generate low jitter reference clocks for a variety of communication applications. The dual crystal interface allows the synthesizer to support up to three communication standards in a given application (i.e. SONET with a 19.44MHz crystal, 1Gb/10Gb Ethernet and Fibre Channel using a 25MHz crystal). The RMS phase jitter performance is typically less than 1ps, thus making the device acceptable for use in demanding applications such as OC48 SONET, GbE/10Gb Ethernet and SAN applications. The 843001I-23 is packaged in a small 24-pin TSSOP, E-Pad package.