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1:1, Differential-to-LVDS Zero Delay Clock Generator

Package Information

CAD Model:View CAD Model
Pkg. Type:SOIC
Pkg. Code:PSG20
Lead Count (#):20
Pkg. Dimensions (mm):12.8 x 7.6 x 2.34
Pitch (mm):1.27

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 TypeTube
Moisture Sensitivity Level (MSL)1
Qty. per Reel (#)0
Qty. per Carrier (#)37
Pb (Lead) FreeYes
Pb Free Categorye3 Sn
Temp. Range (°C)0 to 70°C
Advanced FeaturesFeedback Input
C-C Jitter Max P-P (ps)30
Core Voltage (V)3.3
Feedback InputYes
Input Freq (MHz)31.25 - 700
Input TypeHCSL, HSTL, LVDS, LVPECL, SSTL
Inputs (#)1
Length (mm)12.8
MOQ37
Output Banks (#)1
Output Freq Range (MHz)31.25 - 700
Output Skew (ps)35
Output TypeLVDS
Output Voltage (V)3.3
Outputs (#)1
Package Area (mm²)97.3
Phase Jitter Max RMS (ps)52
Pitch (mm)1.27
Pkg. Dimensions (mm)12.8 x 7.6 x 2.34
Pkg. TypeSOIC
Prog. ClockNo
PublishedNo
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Tape & ReelNo
Thickness (mm)2.34
Width (mm)7.6

Description

The 8745B-21 is a highly versatile 1:1 LVDS Clock Generator. The 8745B-21 has a fully integrated PLL and can be configured as zero delay buffer, multiplier or divider, and has an output frequency range of 31.25MHz to 700MHz. The Reference Divider, Feedback Divider and Output Divider are each programmable, thereby allowing for the following output-to-input frequency ratios: 8:1, 4:1, 2:1, 1:1, 1:2, 1:4, 1:8. The external feedback allows the device to achieve "zero delay" between the input clock and the output clock. The PLL_SEL pin can be used to bypass the PLL for system test and debug purposes. In bypass mode, the reference clock is routed around the PLL and into the internal output dividers.