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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 Universal FrequencyTranslator

Package Information

CAD Model:View CAD Model
Pkg. Type:VFQFPN
Pkg. Code:NLG40
Lead Count (#):40
Pkg. Dimensions (mm):6.0 x 6.0 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 (#)40
Carrier TypeTray
Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
Pb Free Categorye3 Sn
Temp. Range (°C)-40 to 85°C
Advanced FeaturesProgrammable Clock, Spread Spectrum
C-C Jitter Max P-P (ps)40
Core Voltage (V)3.3V, 2.5V
Divider Value2
Family NameUFT
Feedback Divider1 - 255
Feedback InputNo
Input Freq (MHz)0.008 - 710
Input TypeCrystal, HCSL, HSTL, LVDS, LVPECL
Inputs (#)3
Length (mm)6
MOQ490
Output Banks (#)1
Output Freq Range (MHz)0.98 - 1300
Output SignalingLVPECL, LVDS
Output Skew (ps)30
Output TypeLVPECL, LVDS
Output Voltage (V)3.3V, 2.5V
Outputs (#)2
Package Area (mm²)36
Period Jitter Max P-P (ps)8.7
Period Jitter Typ P-P (ps)5.1
Phase Jitter Max RMS (ps)0.446
Phase Jitter Typ RMS (fs)285
Phase Jitter Typ RMS (ps)0.285
Pitch (mm)0.5
Pkg. Dimensions (mm)6.0 x 6.0 x 0.9
Pkg. TypeVFQFPN
Product CategoryFemtoClock, Ultra-Low Jitter Clocks (<300 fs RMS), Programmable Clocks, Universal Frequency Translators
Prog. ClockYes
Prog. InterfaceI2C
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
Thickness (mm)0.9
VCO Max Freq (MHz)2600
VCO Min Freq (MHz)1995
Width (mm)6
Xtal Freq (KHz)16 - 40
Xtal Inputs (#)1

Description

The 8T49N203I is a highly flexible FemtoClock™ NG general purpose, low phase noise Universal Frequency Translator/Synthesizer with alarm and monitoring function suitable for networking and communications applications. The 8T49N203I has three operating modes to support a very broad spectrum of applications: frequency Synthesizer, high-bandwidth frequency translator, and low-bandwidth frequency translator. This device provides two factory-programmed default power-up configurations burned into One-Time Programmable (OTP) memory. The two configurations are specified by the customer and are programmed by Renesas during the final test phase from an on-hand stock of blank devices.

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