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843441AM-75T

更新时间： 2024-11-04 19:22:59
品牌 Logo 应用领域
艾迪悌 - IDT 光电二极管
页数 文件大小 规格书
14页 869K
描述
Clock Generator, PDSO8

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843441AM-75T 技术参数

是否Rohs认证： 符合生命周期：Active
Reach Compliance Code：compliant风险等级：5.8
JESD-30 代码：R-PDSO-G8端子数量：8
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE电源：3.3 V
认证状态：Not Qualified子类别：Clock Generators
标称供电电压：3.3 V表面贴装：YES
温度等级：COMMERCIAL端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
Base Number Matches：1

843441AM-75T 数据手册

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PRELIMINARY  
TM  
FEMTOCLOCKS  
ICS843441  
SAS/SATA CLOCK GENERATOR  
General Description  
Features  
The ICS843441 is a low jitter, high performance  
• Designed for use in SAS, SAS-2, and SATA systems  
• Center ( 0.25%) Spread Spectrum Clocking (SSC)  
• Down (-0.23% or -0.5%) SSC  
S
IC  
clock generator and a member of the FemtoClocks™  
family of silicon timing products. The ICS843441 is  
designed for use in applications using the SAS and  
SATA interconnect. The ICS843241 uses an  
HiPerClockS™  
• Better frequency stability than SAW oscillators  
• One differential 3.3V LVPECL output  
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 ICS843441 features down  
and center spread spectrum (SSC) clocking techniques.  
• Crystal oscillator interface designed for 25MHz  
(CL = 18pF) frequency  
• External fundamental crystal frequency ensures high reliability  
and low aging  
• Selectable output frequencies: 75MHz, 100MHz, 150MHz,  
Applications  
300MHz  
• SAS/SATA Host Bus Adapters  
• Output frequency is tunable with external capacitors  
• RMS phase jitter: 1.33ps (typical)  
• SATA Port Multipliers  
• SAS I/O Controllers  
• 3.3V operating supply  
• TapeDrive and HDD Array Controllers  
• SAS Edge and Fanout Expanders  
• HDDs and TapeDrives  
• 0°C to 70°C ambient operating temperature  
• Available in both standard (RoHS 5) and lead-free (RoHS 6)  
packages  
• Disk Storage Enterprise  
Pin Assignment  
Block Diagrams  
XTAL_IN  
ICS843441  
25MHz  
XTAL  
00 = SSC Off  
8-Lead SOIC, 150 Mil  
3.90mm x 4.90mm x 1.375mm package body  
FemtoClock™  
OSC  
01 = 0.5% Down-spread  
10 = 0.23% Down-spread  
11 = 0.5% Center-spread  
Q
PLL  
nQ  
XTAL_OUT  
M Package  
Top View  
SSC Output  
Control Logic  
Pulldown:Pulldown  
SSC_SEL(1:0)  
nPLL_SEL  
8-Lead SOIC  
VEE  
F_SEL1  
VEE  
nPLL_SEL  
nQ  
Q
VCC  
1
2
16  
15  
14  
13  
12  
11  
10  
9
XTAL_OUT  
XTAL_IN  
Pulldown  
3
4
5
6
7
8
SSC_SEL0  
nc  
nc  
nc  
XTAL_IN  
FemtoClock™  
25MHz  
XTAL  
OSC  
F_SEL0  
VCC  
0
1
PLL  
00 = 75MHz  
SSC_SEL1  
01 = 100MHz  
Q
XTAL_OUT  
10 = 150MHz (default)  
11 = 300MHz  
nQ  
ICS843441  
Pullup:Pulldown  
F_SEL(1:0)  
16-Lead TSSOP  
4.4mm x 5.0mm x 0.925mm package body  
G Package  
Clock Output  
Control Logic  
Pulldown:Pulldown  
SSC_SEL(1:0)  
16-Lead TSSOP  
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.  
IDT™ / ICS™ SAS/SATA CLOCK GENERATOR  
1
ICS843441AG REV. A JULY 17, 2008  
1234567...14

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