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844441DMI-300LFT

产品描述IC generatr clk sas/sata 8soic
产品类别半导体    模拟混合信号IC   
文件大小807KB,共14页
制造商IDT(艾迪悌)
官网地址http://www.idt.com/
标准  
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844441DMI-300LFT概述

IC generatr clk sas/sata 8soic

844441DMI-300LFT规格参数

参数名称属性值
Datasheets
ICS844441I Preliminary
Product Photos
8-SOIC
8-SOIC
PCN Design/Specificati
Assembly Lot Number Scheme 12/Oct/2013
Standard Package2,500
CategoryIntegrated Circuits (ICs)
FamilyClock/Timing - Application Specific
系列
Packaging
Tape & Reel (TR)
PLLYes
Main PurposeSAS, SAS-2, SATA CPU
InpuCrystal
OutpuLVDS
Number of Circuits1
Ratio - InpuOutpu
Differential - InpuOutpu
Frequency - Max300MHz
Voltage - Supply2.375 V ~ 2.625 V
Operating Temperature-40°C ~ 85°C
Mounting TypeSurface Mou
封装 / 箱体
Package / Case
8-SOIC (0.154", 3.90mm Width)
Supplier Device Package8-SOIC
Other NamesICS844441DMI-300LFTICS844441DMI-300LFT-ND

文档预览

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FemtoClock™ SAS/SATA Clock Generator
ICS844441I
PRELIMINARY DATA SHEET
General Description
The ICS844441I is a low jitter, high performance clock
generator and a member of the FemtoClock™ family
HiPerClockS™
of silicon timing products. The ICS844441I is designed
for use in applications using the SAS and SATA
interconnect. The ICS844441I uses an external,
25MHz, parallel resonant crystal to generate four selectable output
frequencies: 75MHz, 100MHz, 150MHz, and 300MHz. This silicon
based approach provides excellent frequency stability and reliability.
The ICS844441I features down and center spread spectrum (SSC)
clocking techniques.
Features
Designed for use in SAS, SAS-2, and SATA systems
Center (±0.25%) Spread Spectrum Clocking (SSC)
Down (-0.23% or -0.5%) SSC
Better frequency stability than SAW oscillators
One differential 2.5V LVDS output
Crystal oscillator interface designed for 25MHz
(C
L
= 18pF) frequency
External fundamental crystal frequency ensures high reliability
and low aging
Selectable output frequencies: 75MHz, 100MHz, 150MHz,
300MHz
Output frequency is tunable with external capacitors
RMS phase jitter @ 100MHz, using a 25MHz crystal
(12kHz – 20MHz): 1.1936ps (typical)
2.5V operating supply
-40°C to 85°C ambient operating temperature
Available in lead-free (RoHS 6) packages
ICS
Applications
SAS/SATA Host Bus Adapters
SATA Port Multipliers
SAS I/O Controllers
TapeDrive and HDD Array Controllers
SAS Edge and Fanout Expanders
HDDs and TapeDrives
Disk Storage Enterprise
Pin Assignment
Block Diagrams
XTAL_IN
XTAL_OUT
XTAL_IN
SSC_SEL0
SSC_SEL1
1
2
3
4
8
7
6
5
GND
nQ
Q
V
DD
25MHz
XTAL
XTAL_OUT
OSC
FemtoClock™
PLL
00 = SSC Off
01 = 0.5% Down-spread
10 = 0.23% Down-spread
11 = 0.5% Center-spread
Q
nQ
SSC_SEL(1:0)
Pulldown:Pulldown
SSC Output
Control Logic
8-Lead SOIC
ICS844441I
8-Lead SOIC, 150 mil
3.90mm x 4.90mm x 1.375mm package body
M Package
Top View
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
F_SEL1
GND
nPLL_SEL
nQ
Q
V
DD
F_SEL0
V
DD
nPLL_SEL
Pulldown
XTAL_IN
25MHz
XTAL
XTAL_OUT
OSC
FemtoClock™
PLL
0
1
00 = 75MHz
01 = 100MHz
10 = 150MHz
(default)
11 = 300MHz
Q
nQ
XTAL_OUT
XTAL_IN
SSC_SEL0
nc
nc
nc
SSC_SEL1
F_SEL(1:0)
SSC_SEL(1:0)
Pullup:Pulldown
Pulldown:Pulldown
Clock Output
Control Logic
16-Lead TSSOP
ICS844441I
16-Lead TSSOP
4.4mm x 5.0mm x 0.925mm package body
G Package
Top View
The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization
and/or qualification. Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.
ICS844441DGI REVISION B OCTOBER 13, 2009
1
©2009 Integrated Device Technology, Inc.
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