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844004I-01 - Block Diagram

844004BGI-01LF

Obsolete
Renesas Electronics Corporation

FEMTOCLOCK® CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER

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844004I-01 - Block Diagram

844004BGI-01LF

Obsolete
Renesas Electronics Corporation

FEMTOCLOCK® CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER

Find alt

Description

General part information

844004I-01 Series

The 844004I-01 is a 4 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 844004I-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 844004I-01 is packaged in a small 24-pin TSSOP package.

Technical Specifications

Parameters and characteristics for this part

Specification844004BGI-01LF
Differential InputNo
Differential OutputYes
DividerYes
Frequency - Max156.5 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 Length0.173 in
Package Name24-TSSOP
Package Width4.4 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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