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ルネサス エレクトロニクス株式会社 (Renesas Electronics Corporation)
Triple PLL Field Programmable SS VersaClock Synthesizer

パッケージ情報

CADモデル:View CAD Model
Pkg. Type:QSOP
Pkg. Code:PCG20
Lead Count (#):20
Pkg. Dimensions (mm):8.7 x 3.8 x 1.47
Pitch (mm):0.64

環境及び輸出分類情報

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

製品スペック

Lead Count (#)20
Carrier TypeTube
Moisture Sensitivity Level (MSL)1
Qty. per Reel (#)0
Qty. per Carrier (#)55
Pb (Lead) FreeYes
Pb Free Categorye3 Sn
Temp. Range (°C)0 to 70°C
Advanced FeaturesProgrammable Clock, Spread Spectrum, Reference Output
Core Voltage (V)3.3
Family NameVersaClock
Input Freq (MHz)50
Input TypeCrystal, LVCMOS
Inputs (#)1
Length (mm)8.7
MOQ165
Output Banks (#)1
Output Freq Range (MHz)0.25 - 200
Output Skew (ps)250
Output TypeLVCMOS
Output Voltage (V)3.3
Outputs (#)9
Package Area (mm²)33.1
Period Jitter Typ P-P (ps)200
Phase Jitter Typ RMS (fs)50000
Phase Jitter Typ RMS (ps)50
Pitch (mm)0.64
Pkg. Dimensions (mm)8.7 x 3.8 x 1.47
Pkg. TypeQSOP
Product CategoryVersaClock, Programmable Clocks
Prog. ClockYes
Prog. InterfaceOTP
Reference OutputYes
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Spread SpectrumYes
Tape & ReelNo
Thickness (mm)1.47
Width (mm)3.8

説明

The 345 field programmable clock synthesizer generates up to nine high-quality, high-frequency clock outputs including multiple reference clocks from a low-frequency crystal or clock input. It is designed to replace crystals and crystal oscillators in most electronic systems. Using IDT's VersaClockTM software to configure PLLs and outputs, the 345 contains a One-Time Programmable (OTP) ROM to allow field programmability. Programming features include eight selectable configuration registers, up to two sets of four low-skew outputs, and optional Spread Spectrum outputs. Using Phase-Locked Loop (PLL) techniques, the device runs from a standard fundamental mode, inexpensive crystal, or clock. It can replace multiple crystals and oscillators, saving board space and cost. The 345 is also available in factory programmed custom versions for high-volume applications.