Datasheet > 843246I

843246I

更新时间： 2024-11-04 01:12:59

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
18页	323K
描述
Femtoclocks Crystal-to-3.3V LVPECL Frequency Synthesizer W/Integrated Fanout Buffer

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843246I 数据手册

Femtoclocks™ Crystal-to-3.3V LVPECL

Frequency Synthesizer W/Integrated

Fanout Buffer

843246I

Data Sheet

GENERAL DESCRIPTION

FEATURES

The 843246I is a Crystal-to-3.3V LVPECL Clock Synthesizer/Fanout

Buffer designed for Fibre Channel and Gigabit Ethernet applications

and is a member of the family of High Performance Clock Solutions

from IDT.The output frequency can be set using the frequency select

pins and a 25MHz crystal for Ethernet frequencies, or a 26.5625MHz

crystal for a Fibre Channel.The low phase noise characteristics of

the 843246I make it an ideal clock for these demanding applications.

• Six LVPECL outputs

• Crystal oscillator interface

• VCO range: 490MHz to 680MHz

• Crystal input frequency range: 25MHz to 33.333MHz

• RMS phase jitter at 125MHz, using a 25MHz crystal

(1.875MHz to 20MHz): 0.41ps (typical)

• Full 3.3V or 3.3V core, 2.5V output supply mode

Core/Output

3.3V/3.3V

3.3V/2.5V

• -40°C to 85°C ambient operating temperature

• Available in lead-free (RoHS 6) package

SELECT FUNCTION TABLE

Inputs

Function

FB_SEL N_SEL1 N_SEL0 M Divide N Divide

M/N

2.5

BLOCK DIAGRAM

PIN ASSIGNMENT

843246I

24-Lead TSSOP, E-Pad

4.40mm x 7.8mm x 0.9mm

body package

G Package

Top View

December 8, 2015

12 3 4 5 6 7...18

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与843246I相关器件

型号	品牌	获取价格	描述	数据表
84324L	SWITCH	获取价格	Toggle Switch, 4PDT, Latched, Solder Terminal, Lever Actuator, Panel Mount,
843251AG-04	IDT	获取价格	Clock Generator, 187.5MHz, PDSO8, 4.40 X 3 MM, 0.925 MM HEIGHT, MO-153, TSSOP-8
843252	IDT	获取价格	FemtoClock Crystal-to- 3.3V LVPECL Frequency Synthesizer
843252AGI-04LF	IDT	获取价格	Clock Generator, 187.5MHz, PDSO16, 4.40 X 5 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153, TS
843252AGI-04T	IDT	获取价格	Clock Generator, 187.5MHz, PDSO16, 4.40 X 5 MM, 0.92 MM HEIGHT, MO-153, TSSOP-16
843252AGLF	IDT	获取价格	FemtoClock Crystal-to- 3.3V LVPECL Frequency Synthesizer
843252AGLFT	IDT	获取价格	FemtoClock Crystal-to- 3.3V LVPECL Frequency Synthesizer
843253AGI-45LF	IDT	获取价格	Clock Generator, 156.25MHz, PDSO16, 4.40 X 5 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, MO-153,
843253AGI-45LFT	IDT	获取价格	Clock Generator, 156.25MHz, PDSO16, 4.40 X 5 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, MO-153,
843256AGI-45LF	IDT	获取价格	Clock Generator, 156.25MHz, PDSO24, 5 X 4.40 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, TSSOP-24