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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-to-0.7V Differential Frequency Synthesizer

Package Information

CAD Model:View CAD Model
Pkg. Type:TSSOP
Pkg. Code:DQG28
Lead Count (#):28
Pkg. Dimensions (mm):9.7 x 6.1 x 1.0
Pitch (mm):0.65

Environmental & Export Classifications

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

Product Attributes

Pkg. TypeTSSOP
Lead Count (#)28
Pb (Lead) FreeYes
Carrier TypeReel
App Jitter CompliancePCIe Gen1, PCIe Gen2, PCIe Gen3
C-C Jitter Max P-P (ps)60
Core Voltage (V)3.3
Feedback InputNo
Input Freq (MHz)25 - 25
Input TypeCrystal, LVCMOS
Inputs (#)2
Length (mm)9.7
MOQ1000
Moisture Sensitivity Level (MSL)3
Output Banks (#)4
Output Freq Range (MHz)100 - 100, 125 - 125
Output Skew (ps)70
Output TypeHCSL
Output Voltage (V)3.3
Outputs (#)4
Package Area (mm²)47
Pb Free Categorye3 Sn
Phase Jitter Max RMS (ps)0.98
Phase Jitter Typ RMS (ps)0.47
Pitch (mm)0.65
Pkg. Dimensions (mm)9.7 x 6.1 x 1.0
Prog. ClockNo
Qty. per Carrier (#)0
Qty. per Reel (#)1000
Reel Size (in)13
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Tape & ReelYes
Temp. Range (°C)-40 to 85°C
Thickness (mm)1
Width (mm)6.1

Description

The 841604I-01 is an optimized PCIe and sRIO clock generator. The device uses a 25MHz parallel crystal to generate 100MHz and 125MHz clock signals, replacing solutions requiring multiple oscillator and fanout buffer solutions. The device has excellent phase jitter (< 1ps rms) suitable to clock components requiring precise and low-jitter PCIe or sRIO or both clock signals. Designed for telecom, networking and industrial applications, the 841604I-01 can also drive the high-speed sRIO and PCIe SerDes clock inputs of communication processors, DSPs, switches and bridges.