參數(shù)資料
型號(hào)： ICS840001
英文描述： Hex inverters 14-PDIP 0 to 70
中文描述： FEMTOCLOCKS⑩CRYSTAL-TO-LVCMOS/LVTTL時(shí)鐘發(fā)生器
文件頁數(shù)： 7/12頁
文件大?。?/td> 194K
代理商： ICS840001
840001BG
www.icst.com/products/hiperclocks.html
REV. A MAY 10, 2004
7
Integrated
Circuit
Systems, Inc.
ICS840001
F
EMTO
C
LOCKS
C
RYSTAL
-
TO
-
LVCMOS/LVTTL C
LOCK
G
ENERATOR
A
PPLICATION
I
NFORMATION
Figure 2. C
RYSTAL
I
NPU
t I
NTERFACE
C
RYSTAL
I
NPUT
I
NTERFACE
The ICS840001 has been characterized with 18pF parallel
resonant crystals. The capacitor values, C1 and C2, shown in
Figure 2 below were determined using a 26.5625MHz, 18pF par-
allel resonant crystal and were chosen to minimize the ppm er-
ror. The optimum C1 and C2 values can be slightly adjusted for
different board layouts.
As in any high speed analog circuitry, the power supply pins are
vulnerable to random noise. The ICS840001 provides separate
power supplies to isolate any high switching noise from the out-
puts to the internal PLL. V
DD
, and V
DDA
should be individually con-
nected to the power supply plane through vias, and bypass ca-
pacitors should be used for each pin. To achieve optimum
jitter performance, power supply isolation is required. Figure 1
illustrates how a 10
resistor along with a 10
μ
F and a .01
μ
F
bypass capacitor should be connected to each V
DDA
pin.
P
OWER
S
UPPLY
F
ILTERING
T
ECHNIQUES
F
IGURE
1. P
OWER
S
UPPLY
F
ILTERING
10
V
DDA
10
μ
F
.01
μ
F
3.3V
.01
μ
F
V
DD
C1
33p
X1
18pF Parallel Crystal
C2
27p
XTAL_OUT
XTAL_IN
相關(guān)PDF資料
PDF描述
ICS840001BG Hex inverters 14-SO 0 to 70
ICS840001BGT FEMTOCLOCKS⑩ CRYSTAL-TO-LVCMOS/LVTTL CLOCK GENERATOR
ICS840002-01 FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840002AG-01 FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840002AG-01LF FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ICS840001-31 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL -TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840001-32 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840001-34 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840001AGI 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840001AGI-25LF 功能描述:IC DRIVER LVCMOS HS 8-TSSOP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:時(shí)鐘/頻率合成器，扇出分配 PLL:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 除法器/乘法器:- 電源電壓:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT
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