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參數(shù)資料
| 型號(hào)： | SY89532L |
| 英文描述： | High Voltage Rectifer Diodes |
| 中文描述： | 可編程輸出頻率合成器 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 314K |
| 代理商： | SY89532L |
6
ClockWorks
SY89529L
Micrel
Power Supply Filtering Techniques
As in any high speed integrated circuits, power supply
filtering is very important. V
CC1
, V
CC
_Analog, V
CC_TTL
and
V
CC_OUT
should be individually connected to the power supply
plane through vias, and bypass capacitors should be used for
each pin. To achieve optimum jitter performance, better
power-supply isolation is required. In this case a ferrite bead
along with a 1
μ
F and a 0.01
μ
F bypass capacitor should be
connected to each power supply pin. Figure 6 illustrates
power-supply filtering using ferrite beads and bypass
capacitors.
For V
Analog,V
V
use ferrite bead = 200mA, 0.45
DC,
Murata P/N BLM21A1025
*For V
use ferrite bead = 3A, 0.025
DC,
Murata, P/N BLM31P005
*Componet sizs: 0805
1
μ
F
22
μ
F
0.01
μ
F
Ferrite Bead*
“
Power Supply
”
side
“
Device
”
side
V
Pins
Figure 5. Power Supply Filtering
Termination for PECL Outputs
The differential PECL outputs, FOUT and /FOUT, are low-
impedance emitter-follower 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. There are a few simple termination schemes.
Figure 7 shows a common 3-resistor termination scheme. For
more termination examples, see Micrel
’
s Application Note 9
online at www.micrel.com.
z = 50
Low impedance,
emitter-follower outputs
z = 50
50
FOUT
/FOUT
50
SY89529L
3-resistor network
available*
*3-resistor network = Thin-film Technologies,
P/N TFT-RN1632-AN1DNC
50
Figure7. LVPECL Output Termination
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| SY89532L_08 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.3V, PRECISION, 33MHz to 500MHz PROGRAMMABLE LVPECL AND LVDS BUS CLOCK SYNTHESIZER |
| SY89532LHC | 功能描述:IC SYNTHESIZR LVPECL/LVDS 64TQFP RoHS:否 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:Precision Edge® 產(chǎn)品變化通告:Product Discontinuation 04/May/2011 標(biāo)準(zhǔn)包裝:96 系列:- 類型:時(shí)鐘倍頻器，零延遲緩沖器 PLL:帶旁路 輸入:LVTTL 輸出:LVTTL 電路數(shù):1 比率 - 輸入:輸出:1:8 差分 - 輸入:輸出:無/無 頻率 - 最大:133.3MHz 除法器/乘法器:是/無 電源電壓:3 V ~ 3.6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:管件 其它名稱:23S08-5HPGG |
| SY89532LHCTR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.3V, PRECISION, 33MHz to 500MHz PROGRAMMABLE LVPECL AND LVDS BUS CLOCK SYNTHESIZER |
| SY89532LHH | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.3V, PRECISION, 33MHz to 500MHz PROGRAMMABLE LVPECL AND LVDS BUS CLOCK SYNTHESIZER |
| SY89532LHH TR | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 LVPECL 3.3V Prec Clock Synthesizer IC RoHS:否 制造商:Micrel 輸出端數(shù)量:3 輸出電平:LVDS, LVPECL 最大輸出頻率:622.08 MHz 輸入電平:CMOS, LVTTL 最大輸入頻率:18 MHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 封裝 / 箱體:TQFP-64 封裝:Reel |
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