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844004I-104 - Block Diagram

844004AKI-104LFT

Obsolete
Renesas Electronics Corporation

FEMTOCLOCK CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER

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844004I-104 - Block Diagram

844004AKI-104LFT

Obsolete
Renesas Electronics Corporation

FEMTOCLOCK CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER

Find alt

Description

General part information

844004I-104 Series

The 844004I-104 is a 4 output LVDS synthesizer optimized to generate Fibre Channel reference clock frequencies. Using a 26.5625MHz 18pF parallel resonant crystal, the following frequencies can be generated based on the two frequency select pins (F_SEL[1:0]): 212.5MHz, 187.5MHz, 159.375MHz, 106.25MHz and 53.125MHz. The 844004I-104 uses our third generation low phase noise VCO technology and can achieve <1ps typical rms phase jitter, easily meeting Fibre Channel jitter requirements. The 844004I-104 is packaged in a 32-pin VFQFN package.

Technical Specifications

Parameters and characteristics for this part

Specification844004AKI-104LFT
Differential InputNo
Differential OutputYes
DividerYes
Frequency - Max226.66 MHz
InputLVCMOS, LVTTL, Crystal
Input Ratio2
Mounting TypeSurface Mount
MultiplierNo
Number of Circuits1
Operating Temperature (Max)85 °C
Operating Temperature (Min)-40 °C
OutputLVDS
Output Ratio4
Package / Case32-VFQFN Exposed Pad
Package Length5 mm
Package Name32-VFQFPN
Package Width5 mm
PLLYes with Bypass
TypeFrequency Synthesizer
Voltage - Supply (Maximum)3.465 V
Voltage - Supply (Minimum)2.375 V

Pricing

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CAD

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Documents

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