Datasheet > 844071

844071

更新时间： 2024-11-05 01:12:59

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
14页	246K
描述
FemtoClock Crystal-to-LVDS Clock Generator

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中文翻译

获取价格

数据手册

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844071 数据手册

FemtoClock® Crystal-to-LVDS

Clock Generator

844071

DATA SHEET

General Description

Features

The 844071 is a Serial ATA (SATA)/Serial Attached SCSI (SAS)

Clock Generator. The 844071 uses an 18pF parallel resonant crystal

over the range of 20.833MHz - 28.3MHz. For SATA/SAS

• One differential LVDS output

• Crystal oscillator interface, 18pF parallel resonant crystal

(20.833MHz – 28.3MHz)

applications, a 25MHz crystal is used and either 75MHz or 150MHz

may be selected with the FREQ_SEL pin. The 844071 has excellent

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

range. The 844071 is packaged in a small 8-pin TSSOP, making it

ideal for use in systems with limited board space.

• Output frequency range: 62.5MHz – 170MHz

• VCO range: 500MHz – 680MHz

• 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 lead-free (RoHS 6) packages

Table 1. Common Configuration Table

Inputs

Crystal Frequency (MHz)

FREQ_SEL

Multiplication Value M/N

Output Frequency (MHz)

150

26.041666

26.5625

156.25

78.125

159.375

79.675

Block Diagram

Pin Assignment

Pullup

FREQ_SEL

V^DD

V^DDA

GND

XTAL_IN

OSC

FREQ_SEL

÷4

÷8

XTAL_OUT

XTAL_IN

VCO

Phase

Detector

500MHz - 680MHz

FREQ_SEL

(Default)

XTAL_OUT

844071

8 Lead TSSOP

M = ÷24 (fixed)

4.40mm x 3.0mm x 0.925mm

package body

G Package

Top View

844071 Rev B 11/17/15

12 3 4 5 6 7...14

中文翻译

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844071AGI	IDT	获取价格	Clock Generator
844071AGLF	IDT	获取价格	FemtoClock Crystal-to-LVDS Clock Generator
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844071AGT	IDT	获取价格	Clock Generator, PDSO8
8440A	ETC	获取价格	FEMALE THREADED STANDOFFS
8440B	ETC	获取价格	FEMALE THREADED STANDOFFS
8440C	ETC	获取价格	FEMALE THREADED STANDOFFS
8440D	ETC	获取价格	FEMALE THREADED STANDOFFS
8440E	ETC	获取价格	FEMALE THREADED STANDOFFS
8440F	ETC	获取价格	FEMALE THREADED STANDOFFS