ICS844071AG

更新时间： 2024-11-05 04:58:15

品牌	Logo	应用领域
艾迪悌 - IDT		时钟发生器
页数	文件大小	规格书
15页	1163K
描述
FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS CLOCK GENERATOR

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中文翻译

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数据手册

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ICS844071AG 数据手册

FEMTOCLOCKS™ CRYSTAL-TO-LVDS

CLOCK GENERATOR

ICS844071

General Description

Features

The ICS844071 is a Serial ATA (SATA)/Serial

• One differential LVDS output

Attached SCSI (SAS) Clock Generator and a

member of the HiPerClocks^TMfamily of high

performance devices from IDT. The ICS844071

uses an 18pF parallel resonant crystal over

• Crystal oscillator interface, 18pF parallel resonant crystal

HiPerClockS™

(20.833MHz – 28.3MHz)

• Output frequency range: 62.5MHz – 170MHz

• VCO range: 500MHz – 680MHz

the range of 20.833MHz - 28.3MHz. For SATA/SAS applications, a

25MHz crystal is used and either 75MHz or 150MHz may be

selected with the FREQ_SEL pin. The ICS844071 has excellent

<1ps phase jitter performance, over the 900kHz - 7.5MHz

integration range. The ICS844071 is packaged in a small 8-pin

TSSOP, making it ideal for use in systems with limited board

space.

• RMS phase jitter at 150MHz, using a 25MHz crystal

(900kHz – 7.5MHz): 0.45ps (typical)

• Full 3.3V or 2.5V operating supply

• 0°C to 70°C ambient operating temperature

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

packages

Table 1. Common Configuration Table

Inputs

Output Frequency

Crystal Frequency (MHz)

FREQ_SEL

Multiplication Value M/N

(MHz)

150

26.041666

26.5625

156.25

78.125

159.375

79.675

Pin Assignment

Block Diagram

V^DD

GND

XTAL_OUT

XTAL_IN

FREQ_SEL

Pullup

FREQ_SEL

ICS844071

8 Lead TSSOP

4.40mm x 3.0mm x 0.925mm

package body

XTAL_IN

FREQ_SEL

÷4

÷8

VCO

Phase

Detector

OSC

500MHz - 680MHz

(Default)

XTAL_OUT

G Package

Top View

M = ÷24 (fixed)

IDT™ / ICS™ LVDS CLOCK GENERATOR

ICS844071AG SEPTEMBER 26, 2007

12 3 4 5 6 7...15

中文翻译

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