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FemtoClock Crystal-to-3.3V LVPECL Frequency Synthesizer

封装信息

CAD 模型: View CAD Model
Pkg. Type: TSSOP
Pkg. Code: PGG16
Lead Count (#): 16
Pkg. Dimensions (mm): 5.0 x 4.4 x 1.0
Pitch (mm): 0.65

环境和出口类别

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

产品属性

Lead Count (#) 16
Carrier Type Reel
Moisture Sensitivity Level (MSL) 1
Qty. per Reel (#) 2500
Qty. per Carrier (#) 0
Pb (Lead) Free Yes
Pb Free Category e3 Sn
Temp. Range (°C) 0 to 70°C
Core Voltage (V) 3.3
Feedback Input No
Input Freq (MHz) 23.33 - 35
Input Type Crystal
Inputs (#) 1
Length (mm) 5
MOQ 2500
Output Banks (#) 2
Output Freq Range (MHz) 98 - 680
Output Skew (ps) 20
Output Type LVPECL
Output Voltage (V) 3.3
Outputs (#) 2
Package Area (mm²) 22
Phase Jitter Typ RMS (ps) 0.4
Pitch (mm) 0.65
Pkg. Dimensions (mm) 5.0 x 4.4 x 1.0
Pkg. Type TSSOP
Prog. Clock No
Reel Size (in) 13
Reference Output No
Requires Terms and Conditions Does not require acceptance of Terms and Conditions
Spread Spectrum No
Tape & Reel Yes
Thickness (mm) 1
Width (mm) 4.4
已发布 No

描述

The 843242 is a 2 differential output LVPECL Synthesizer designed to generate Ethernet reference clock frequencies. Using a 31.25MHz or 26.041666MHz, 18pF parallel resonant crystal, the following frequencies can be generated based on the settings of 4 frequency select pins (SEL[A1:A0], SEL[B1:B0]): 625MHz, 312.5MHz, 156.25MHz, and 125MHz.

The two banks have their own dedicated frequency select pins and can be independently set for the frequencies mentioned above. The 843242 our 3rd generation low phase noise VCO technology and can achieve 1ps or lower typical rms phase jitter, easily meeting Ethernet jitter requirements. The 843242 is packaged in a small 16-pin TSSOP package.