参数资料
型号: ICS9112M-42
元件分类: 时钟产生/分配
英文描述: 125 MHz, OTHER CLOCK GENERATOR, PDSO8
封装: 0.150 INCH, PLASTIC, SOIC-8
文件页数: 1/5页
文件大小: 255K
代理商: ICS9112M-42
Integrated
Circuit
Systems, Inc.
General Description
Features
ICS9112-41/42
Block Diagram
Frequency Generator for Gigabit Ethernet Systems
Not Recommended for New Designs
ICS9112-41/42 Rev D 3/3/99
The ICS9112-41/42 is a high speed clock generator designed
to support Gigabit Ethernet system requirements. The ICS9112-
41/42 generates 125 MHz from a 25 MHz crystal.
An exact frequency multiplying ratio ensures better than ±100
ppm frequency accuracy using a standard AT crystal with
external load capacitors (typically 33pF±5% for an 18pF load
crystal). Achieving ±100 ppm over four years requires the
crystal to have a ±20 ppm initial accuracy, ±30 ppm temperature
and ±5 ppm/year aging coefficients.
The ICS9112-41/42 with less than 25ps accumulative jitter is
well suited for Gigabit Ethernet applications.
Generates 125 MHz clocks from a 25 MHz crystal
Less than 45ps one sigma jitter (15ps typ.)
Less than ±130ps absolute jitter
Less than 25ps accumulative jitter @ 256 cycles
Rise/fall times less than 1.2ns driving 15pF
On-chip loop filter components
3.0V-5.5V supply range
8-pin, 150-mil SOIC package
* Use the ICS613 Low Phase Noise Clock Multiplier
PRODUCT PREVIEW documents contain information on new
products in the sampling or preproduction phase of development.
Characteristic data and other specifications are subject to change
without notice.
Preliminary Product Preview
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