Datasheet > ICS4002AI01L

ICS4002AI01L

更新时间： 2024-11-14 02:56:27

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
14页	743K
描述
FEMTOCLOCKS CRYSTAL-TOLVDS FREQUENCY SYNTHESIZER

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中文翻译

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数据手册

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ICS4002AI01L 数据手册

FEMTOCLOCKS– CRYSTAL-TO-

LVDS FREQUENCY SYNTHESIZER

ICS844002I-01

General Description

Features

The ICS844002I-01 is a 2 output LVDS Synthesizer

• Two differential LVDS outputs

optimized to generate Ethernet reference clock

frequencies and is a member of the HiPerClocks^TM

family of high performance clock solutions from IDT.

Using a 25MHz, 18pF parallel resonant crystal, the

• Selectable crystal oscillator interface or

HiPerClockS™

single-ended LVCMOS/LVTTL input

• Supports the following output frequencies: 156.25MHz,

125MHz, 62.5MHz

following frequencies can be generated based on the 2 frequency

select pins (F_SEL[1:0]): 156.25MHz, 125MHz and 62.5MHz. The

ICS844002I-01 uses IDT’s 3^rdgeneration low phase noise VCO

technology and can achieve <1ps typical rms phase jitter, easily

meeting Ethernet jitter requirements. The ICS844002I-01 is

packaged in a small 20-pin TSSOP package.

• VCO range: 560MHz – 680MHz

• RMS phase jitter @ 156.25MHz, using a 25MHz crystal

(1.875MHz – 20MHz): 0.41ps (typical)

• Full 2.5V supply mode

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

• Available in both standard (RoHS 5) and lead-free (RoHS 6)

packages

Block Diagram

Pin Assignment

Pulldown

V^DDO

VDDO

F_SEL[1:0]

PLL_SEL

Pulldown

18 Q1

17 GND

F_SEL[1:0]

0 0 ÷4

16 nc

Pulldown

25MHz

REF_CLK

XTAL_IN

PLL_SEL

XTAL_SEL

REF_CLK

0 1 ÷5

1 0 ÷10

1 1 not used

V^DDA

13 XTAL_IN

VCO

625MHz

(w/25MHz

Reference)

Phase

Detector

F_SEL0

V^DD

12 XTAL_OUT

OSC

F_SEL1

XTAL_OUT

XTAL_SEL

ICS844002I-01

20-Lead TSSOP

6.5mm x 4.4mm x 0.925mm

package body

Pulldown

M = 25 (fixed)

G Package

Top View

IDT™ / ICS™ LVDS FREQUENCY SYNTHESIZER

ICS844002AGI-01 REV. C SEPTEMBER 28, 2007

12 3 4 5 6 7...14

中文翻译

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