- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377488 > IDT82V3255 (Integrated Device Technology, Inc.) WAN PLL PDF資料下載
參數(shù)資料
| 型號： | IDT82V3255 |
| 廠商： | Integrated Device Technology, Inc. |
| 英文描述： | WAN PLL |
| 中文描述： | 廣域網(wǎng)鎖相環(huán) |
| 文件頁數(shù)： | 41/127頁 |
| 文件大?。?/td> | 868K |
| 代理商： | IDT82V3255 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁當前第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁
IDT82V3255
WAN PLL
Functional Description
41
June 19, 2006
3.16
POWER SUPPLY FILTERING TECHNIQUES
Figure 12. IDT82V3255 Power Decoupling Scheme
To achieve optimum jitter performance, power supply filtering is
required to minimize supply noise modulation of the output clocks. The
common sources of power supply noise are switch power supplies and
the high switching noise from the outputs to the internal PLL. The
82V3255 provides separate VDDA power pins for the internal analog
PLL, VDD_DIFF for the differential output driver circuit and VDDD pins
for the core logic as well as I/O driver circuits.
To minimize switching power supply noise generated by the switch-
ing regulator, the power supply output should be filtering with sufficient
bulk capacity to minimize ripple and 0.1 uF (0402 case size, ceramic)
caps to filter out the switching transients.
For the 82V3255, the decoupling for VDDA, VDD_DIFF and VDDD
are handled individually. VDDD, VDD_DIFF and VDDA should be indi-
vidually connected to the power supply plane through vias, and bypass
capacitors should be used for each pin. Figure 12 illustrated how bypass
capacitor and ferrite bead should be connected to power pins.
The analog power supply VDDA and VDD_DIFF should have low
impedance. This can be achieved by using one 10 uF (1210 case size,
ceramic) and at least four 0.1 uF (0402 case size, ceramic) capacitors in
parallel. The 0.1 uF (0402 case size, ceramic) capacitors must be
placed right next to the VDDA and VDD_DIFF pins as close as possible.
Note that the 10 uF capacitor must be of 1210 case size, and it must be
ceramic for lowest ESR (Effective Series Resistance) possible. The 0.1
uF should be of case size 0402, this offers the lowest ESL (Effective
Series Inductance) to achieve low impedance towards the high speed
range.
For VDDD, at least ten 0.1 uF (0402 case size, ceramic) and one 10
uF (1210 case size, ceramic) capacitors are recommended. The 0.1 uF
capacitors should be placed as close to the VDDD pins as possible.
Please refer to evaluation board schematic for details.
IDT 82V3255
3.3V
0.1
μ
F
10
μ
F
DGND
AGND
GND_DIFF
1, 3, 15, 58
VDDA
VDDD
0.1
μ
F
3.3V
10
μ
F
21
7, 10, 11, 31, 40, 53
4, 14,57
VDD_DIFF
22
8, 9, 12, 32, 36, 38, 39, 45, 46 , 54
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
SLF7028T-100M1R1
SLF7028T-100M1R1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IDT82V3255DK | WAN PLL |
| IDT82V3255DKG | WAN PLL |
| IDT82V3255TF | WAN PLL |
| IDT82V3255TFG | WAN PLL |
| IDT82V3280 | WAN PLL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IDT82V3255_08 | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:WAN PLL |
| IDT82V3255DK | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:WAN PLL |
| IDT82V3255DKG | 功能描述:IC PLL WAN SMC STRATUM 3 64-TQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| IDT82V3255DKG8 | 功能描述:IC PLL WAN SMC STRATUM 3 64-TQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| IDT82V3255EDGBLANK | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:WAN PLL |
發(fā)布緊急采購，3分鐘左右您將得到回復。