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參數(shù)資料
| 型號： | ICS840011 |
| 英文描述： | FEMTOCLOCKS CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR |
| 中文描述： | FEMTOCLOCKS CRYSTAL-TOLVCMOS/LVTTL時鐘發(fā)生器 |
| 文件頁數(shù)： | 7/11頁 |
| 文件大?。?/td> | 190K |
| 代理商： | ICS840011 |
840011AG
www.icst.com/products/hiperclocks.html
REV. A OCTOBER 15, 2004
7
Integrated
Circuit
Systems, Inc.
ICS840011
F
EMTO
C
LOCKS
C
RYSTAL
-
TO
-
LVCMOS/LVTTL C
LOCK
G
ENERATOR
A
PPLICATION
S
CHEMATIC
Figure 3Ashows a schematic example of the ICS840011. An
example of LVCMOS termination is shown in this schematic.
Additional LVCMOS termination approaches are shown in the
LVCMOS Termination Application Note. In this example, an 18pF
parallel resonant 26.5625MHz crystal is used for generating
106.25MHz output frequency. The C1 = 27pF and C2 = 33pF
are recommended for frequency accuracy. For different board
layout, the C1 and C2 values may be slightly adjusted for opti-
mizing frequency accuracy.
F
IGURE
3A. ICS840011 S
CHEMATIC
E
XAMPLE
PC B
OARD
L
AYOUT
E
XAMPLE
Figure 3B shows an example of P.C. board layout. The crystal
X1 footprint in this example allows either surface mount (HC49S)
or through hole (HC49) package. C3 is 0805. C1 and C2 are
0402. Other resistors and capacitors are 0603. This layout as-
sumes that the board has clean analog power and ground planes.
F
IGURE
3B. ICS840011 PC B
OARD
L
AYOUT
E
XAMPLE
R3
43
Zo = 50 Ohm
R2
10
OE
C5
0.1u
VDD
U1
ICS840011
1
2
3
4
8
7
6
5
VDDA
OE
XTAL_OUT
XTAL_IN
VDD
Q0
GND
NC
C4
0.1u
C3
10uF
C1
27pF
C2
33pF
VDD=3.3V
X1
VDDA
VDD
Q
LVCMOS
相關PDF資料 |
PDF描述 |
|---|---|
| ICS840011AG | FEMTOCLOCKS CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR |
| ICS840011AGLN | FEMTOCLOCKS CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR |
| ICS840011AGLNT | FEMTOCLOCKS CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR |
| ICS840011AGT | FEMTOCLOCKS CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR |
| ICS840014AGI | FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ICS840011AG | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR |
| ICS840011AGLN | 功能描述:IC CLK GEN FIBRE CHAN 8-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標準包裝:1,000 系列:- 類型:時鐘/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 供應商設備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT |
| ICS840011AGLNT | 功能描述:IC CLOCK GENERATOR 8-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標準包裝:2,000 系列:- 類型:PLL 時鐘發(fā)生器 PLL:帶旁路 輸入:LVCMOS，LVPECL 輸出:LVCMOS 電路數(shù):1 比率 - 輸入:輸出:2:11 差分 - 輸入:輸出:是/無 頻率 - 最大:240MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應商設備封裝:32-TQFP（7x7） 包裝:帶卷 (TR) |
| ICS840011AGT | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR |
| ICS840014AGI | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS? CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER |
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