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參數(shù)資料
| 型號(hào)： | ICS843003AGLF |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時(shí)鐘產(chǎn)生/分配 |
| 英文描述： | 700 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| 封裝： | 4.40 X 7.80 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP-24 |
| 文件頁數(shù)： | 6/21頁 |
| 文件大?。?/td> | 1125K |
| 代理商： | ICS843003AGLF |
ICS843003
FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
IDT / ICS LVPECL FREQUENCY SYNTHESIZER
14
ICS843003AG REV. A FEBRUARY 19, 2008
Termination for 3.3V LVPECL Outputs
The clock layout topology shown below is a typical termination for
LVPECL outputs. The two different layouts mentioned are
recommended only as guidelines.
FOUT and nFOUT are low impedance follower outputs that
generate ECL/LVPECL compatible outputs. Therefore, terminating
resistors (DC current path to ground) or current sources must be
used for functionality. These outputs are designed to drive 50
transmission lines. Matched impedance techniques should be
used to maximize operating frequency and minimize signal
distortion. Figures 5A and 5B show two different layouts which are
recommended only as guidelines. Other suitable clock layouts may
exist and it would be recommended that the board designers
simulate to guarantee compatibility across all printed circuit and
clock component process variations.
Figure 5A. 3.3V LVPECL Output Termination
Figure 5B. 3.3V LVPECL Output Termination
V
CC - 2V
50
50
RTT
Z
o = 50
Z
o = 50
FOUT
FIN
RTT =
Z
o
1
((V
OH + VOL) / (VCC – 2)) – 2
3.3V
125
125
84
84
Z
o = 50
Z
o = 50
FOUT
FIN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ICS843004AG-01LFT | 156.25 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS843004AG-02LFT | 637.5 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS843004AG-02LF | 680 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS843004AGI-01 | 170 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS843004AGI-04LFT | 680 MHz, OTHER CLOCK GENERATOR, PDSO24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS843003AGLFT | 功能描述:IC SYNTHESIZER LVPECL 24-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 |
| ICS843003AGT | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS843003AI01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS843003I-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS843003I-09 | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:FEMTOCLOCKS? CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
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