参数资料
型号: ICS840AG-75LFT
元件分类: 时钟产生/分配
英文描述: 75 MHz, OTHER CLOCK GENERATOR, PDSO8
封装: 4.40 X 3 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP-8
文件页数: 6/9页
文件大小: 388K
代理商: ICS840AG-75LFT
840AG-75
www.icst.com/products/hiperclocks.html
REV A. MARCH 31, 2006
6
Integrated
Circuit
Systems, Inc.
ICS840-75
75MHZ, LVCMOS/LVTTL
OSCILLATOR REPLACEMENT
APPLICATION INFORMATION
Figure 1. CRYSTAL INPUt INTERFACE
CRYSTAL INPUT INTERFACE
The ICS840-75 has been characterized with 18pF parallel
resonant crystals. The capacitor values, C1 and C2, shown in
Figure 1 below were determined using a 25MHz, 18pF parallel
resonant crystal and were chosen to minimize the ppm error.
The optimum C1 and C2 values can be slightly adjusted for
different board layouts.
X1
18pF Parallel Cry stal
C1
12p
XTAL_OUT
XTAL_IN
C2
12p
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