- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄360765 > ICS840051AGLF FEMTOCLOCK CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR PDF資料下載
參數(shù)資料
| 型號(hào)： | ICS840051AGLF |
| 英文描述： | FEMTOCLOCK CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR |
| 中文描述： | FEMTOCLOCK CRYSTAL-TOLVCMOS/LVTTL時(shí)鐘發(fā)生器 |
| 文件頁數(shù)： | 7/10頁 |
| 文件大?。?/td> | 218K |
| 代理商： | ICS840051AGLF |
840051AG
www.icst.com/products/hiperclocks.html
REV. A JANUARY 14, 2005
7
Integrated
Circuit
Systems, Inc.
ICS840051
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 ICS840051 has been characterized with 18pF parallel
resonant crystals. The capacitor values, C1 and C2, shown in
Figure 2 below were determined using an 18pF parallel reso-
nant crystal and were chosen to minimize the ppm error. 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 ICS840051 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
22p
XTAL_OUT
XTAL_IN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ICS840051AGT | FEMTOCLOCK CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR |
| ICS840051AGLFT | FEMTOCLOCK CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR |
| ICS84021AY | 260MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER |
| ICS84021AYT | 260MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER |
| ICS84021 | 260MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS840051AGLFT | 功能描述:IC CLOCK GENERATOR 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:2,000 系列:- 類型:PLL 時(shí)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(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:帶卷 (TR) |
| ICS840051AGT | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCK CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR |
| ICS840051I | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER |
| ICS840-125 | 制造商:ICS 制造商全稱:ICS 功能描述:125MHZ, LVCMOS/LVTTL OSCILLATOR REPLACEMENT |
| ICS8402 | 制造商:ICS 制造商全稱:ICS 功能描述:350MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。