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Renesas Electronics Corporation
FemtoClock-Crystal-to-LVDS Frequency Synthesizer

Package Information

CAD Model:View CAD Model
Pkg. Type:TSSOP
Pkg. Code:PGG20
Lead Count (#):20
Pkg. Dimensions (mm):6.5 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 (#)20
Carrier TypeReel
Moisture Sensitivity Level (MSL)1
Qty. per Reel (#)3000
Qty. per Carrier (#)0
Pb (Lead) FreeYes
Pb Free Categorye3 Sn
Temp. Range (°C)0 to 70°C
Core Voltage (V)2.5V, 3.3V
Feedback InputNo
Input Freq (MHz)25 - 25
Input TypeCrystal, LVCMOS
Inputs (#)2
Length (mm)6.5
MOQ3000
Output Banks (#)1
Output Freq Range (MHz)56 - 68, 112 - 136, 140 - 170
Output Skew (ps)20
Output TypeLVDS
Output Voltage (V)2.5V, 3.3V
Outputs (#)2
Package Area (mm²)28.6
Phase Jitter Typ RMS (ps)0.41
Pitch (mm)0.65
Pkg. Dimensions (mm)6.5 x 4.4 x 1.0
Pkg. TypeTSSOP
Product CategoryFemtoClock, Low Jitter Clocks (<700 fs RMS)
Prog. ClockNo
PublishedNo
Reel Size (in)13
Reference OutputNo
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Spread SpectrumNo
Tape & ReelYes
Thickness (mm)1
Width (mm)4.4

Description

The 844002-01 is a 2 output LVDS Synthesizer optimized to generate Ethernet reference clock frequencies. Using a 25MHz, 18pF parallel resonant crystal, the following frequencies can be generated based on the 2 frequency select pins (F_SEL[1:0]): 156.25MHz, 125MHz and 62.5MHz. The 844002-01 uses IDT's 3rd generation low phase noise VCO technology and can achieve <1ps typical rms phase jitter, easily meeting Ethernet jitter requirements. The 844002-01 is packaged in a small 20-pin TSSOP package.