- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄2073 > ICS843031AGLF (IDT, Integrated Device Technology Inc)IC CLK GEN 1GIG LVPECL 8-TSSOP PDF資料下載
參數(shù)資料
| 型號： | ICS843031AGLF |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁數(shù)： | 12/14頁 |
| 文件大小： | 0K |
| 描述： | IC CLK GEN 1GIG LVPECL 8-TSSOP |
| 特色產品： | Gigabit Ethernet Clock Synthesizer |
| 標準包裝： | 96 |
| 系列： | HiPerClockS™, FemtoClock™ |
| 類型： | 時鐘/頻率合成器，時鐘發(fā)生器 |
| PLL： | 是 |
| 輸入： | 晶體 |
| 輸出： | LVPECL |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:1 |
| 差分 - 輸入:輸出： | 無/是 |
| 頻率 - 最大： | 350MHz |
| 除法器/乘法器： | 是/是 |
| 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： | 8-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 8-TSSOP |
| 包裝： | 管件 |
| 其它名稱： | 800-1135 800-1135-5 800-1135-ND 843031AGLF |
CS843031AG REVISION A OCTOBER 5, 2011
7
2011 Integrated Device Technology, Inc.
ICS843031 Data Sheet
FEMTOCLOCK
CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR
APPLICATION INFORMATION
Figure 1. CRYSTAL INPUt INTERFACE
CRYSTAL INPUT INTERFACE
The ICS843031 has been characterized with 18pF parallel
resonant crystals. The capacitor values, C1 and C2, shown in
Figure 1 below were determined using a 26.04167MHz, 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
TERMINATION FOR 3.3V LVPECL OUTPUT
The clock layout topology shown below is a typical termina-
tion 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, termi-
nating resistors (DC current path to ground) or current sources
must be used for functionality. These outputs are designed to
FIGURE 2B. LVPECL OUTPUT TERMINATION
FIGURE 2A. LVPECL OUTPUT TERMINATION
drive 50
Ω transmission lines.Matched impedance techniques
should be used to maximize operating frequency and mini-
mize signal distortion.
Figures 2A and 2B show two different
layouts which are recommended only as guidelines. Other suit-
able 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 varia-
tions.
V
CC - 2V
50
Ω
50
Ω
RTT
Z
o = 50Ω
Z
o = 50Ω
FOUT
FIN
RTT =
Z
o
1
((V
OH + VOL) / (VCC – 2)) – 2
3.3V
125
Ω
125
Ω
84
Ω
84
Ω
Z
o = 50Ω
Z
o = 50Ω
FOUT
FIN
相關PDF資料 |
PDF描述 |
|---|---|
| ICS843051AGLFT | IC CLOCK GENERATOR LVPECL 8TSSOP |
| ICS8430AY-61LFT | IC SYNTHESIZER LVPECL 32-LQFP |
| ICS8430AY-62LF | IC SYNTHESIZER LVPECL 32-LQFP |
| ICS8430BY-71LF | IC SYNTHESIZR DUAL LVPECL 32LQFP |
| ICS843204AGI-01LF | IC SYNTHESIZER LVPECL 48-TSSOP |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ICS843031AGLFT | 功能描述:IC CLK GENERATOR LVPECL 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 |
| ICS843031AGT | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR |
| ICS843034 | 制造商:ICS 制造商全稱:ICS 功能描述:MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER |
| ICS843034-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS? MULTI-RATE LVPECL FREQUENCY SYNTHESIZER |
| ICS843034A01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ MULTI-RATE LVPECL FREQUENCY SYNTHESIZER |
發(fā)布緊急采購，3分鐘左右您將得到回復。