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參數(shù)資料
| 型號： | SL16020DCT |
| 廠商： | SILICON LABORATORIES |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 100 MHz, OTHER CLOCK GENERATOR, PDSO10 |
| 封裝： | 3 X 3 MM, 0.75 MM HEIGHT, HALOGEN FREE AND ROHS COMPLIANT, TDFN-10 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 132K |
| 代理商： | SL16020DCT |
Rev 2.2, August 1, 2010
Page 1 of 10
400 West Cesar Chavez, Austin, TX 78701
1+(512) 416-8500
1+(512) 416-9669
www.silabs.com
SL16020DC
Key Features
Low power dissipation
- 14.5mA-typ CL=15pF
- 20.0mA-max CL=15pF
3.3V +/-10% power supply range
27.000MHz crystal or clock input
27.000MHz REFCLK
100MHz SSCLK with SSEL0/1 spread options
Low CCJ Jitter
Low LT Jitter
Internal Voltage Regulators
45% to 55% Output Duty Cycle
On-chip Crystal Oscillator
-10 to +85 Temperature Range
10-pin 3x3x0.75 mm TDFN package
Application
Video Cards
NB and DT PCs
HDTV and DVD-R/W
Routers, Switches and Servers
Data Communications
Embeded Digital Applications
Description
The SL16020DC is a low power dissipation spread
spectrum clock generator using SLI proprietary low jitter
PLL. The SL16020DC provides two output clocks.
REFCLK (Pin-9) which is a buffered output of the
27.000MHz input crystal and SSCLK (Pin-5) which is
synthesized as 100.000MHz nominal by an internal PLL
using the 27.00MHz external input crystal or clock.
In addition, SSEL0 (Pin-7) and SSEL1 (Pin-3) spread
percent selection control inputs enable users to select
from 0.0% (no spread) to –1.5% down spread at
100.000MHz SSCLK output to reduce and optimize
system EMI levels.
The SL16020DC operates in an extended temperature
range of -10 to +85°C.
Contact SLI for other programmable frequencies, Spread
Spectrum Clock (SSC) options, as well as 2.5V+/-10 and
1.8V+/-5% power supply options.
Benefits
EMI Reduction
Improved Jitter
Low Power Dissipation
Eleminates external Xtals or XOs
Block Diagram
1
Low Jitter PLL
With
Modulation Control
5
Input Decoder
4
6
10
7
3
300K
SSCLK
100.000MHz
With Spread Options
XIN/CLKIN
XOUT
VDD1
VSS1
SSEL0
SSEL1
9
REFCLK
27.000MHz
8
2
VSS2
VDD2
Figure 1. Block Diagram
Low Jitter and Power Clock Generator with SSCG
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