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參數(shù)資料
| 型號： | CDC930DL |
| 英文描述： | CPU SYSTEM CLOCK GENERATOR|SSOP|56PIN|PLASTIC |
| 中文描述： | CPU系統(tǒng)時(shí)鐘發(fā)生器| SSOP封裝| 56PIN |塑料 |
| 文件頁數(shù)： | 2/17頁 |
| 文件大?。?/td> | 240K |
| 代理商： | CDC930DL |
CDC930
133-MHz DIFFERENTIAL CLOCK SYNTHESIZER/DRIVER FOR PC MOTHERBOARDS
WITH 3-STATE OUTPUTS
SCAS641 – JULY 2000
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
The HOST bus operates at 100 MHz or 133 MHz. The MREF bus operates at 50 MHz or 66 MHz. Output
frequency selection is accomplished with corresponding setting for SEL100/133 control input. The PCI bus
frequency is fixed to 33 MHz.
Since the CDC930 is based on PLL circuitry, it requires a stabilization time to achieve phase-lock of the PLL.
This stabilization time is required following power up as well as changes to SEL inputs. With use of external
reference clock, this signal must be fixed-frequency and fixed-phase prior stabilization time starts.
functional block diagram
Control
Logic
3-State/Low
Test
SEL 100/133
Latched
2
Xtal
Oscillator
/3
/2
CPU
PLL
Spread
Logic
/2
48 MHz
PLL
/2
S
180
°
Phase
Shift
Latched
2
2*REF
14.318 MHz
(2,3)
2*3V48
48 MHz
(25,26)
10*PCI
33 MHz
(8,9,11,12,14,
15,17,18,20,21)
4*3V66
66 MHz
(30,31,34,35)
1*3VMREF
50/66 MHz
(55)
1*3VMREF
50/66 MHz
(54)
4*HCLK
100/133 MHz
(42,45,48,51)
4*HCLK
100/133 MHz
(41,44,47,50)
23
SEL100/133
25
SELA
26
SELB
5
XIN
6
XOUT
52
SPREAD
28
PWRDWN
2
MultSel0
3
MultSel1
39
I_REF
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CDC930DLG4 | 功能描述:鎖相環(huán) - PLL 133-MHz Clock Synth/ Drvr RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray |
| CDC930DLR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CDC950 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:133-MHz DIFFERENTIAL CLOCK SYNTHESIZER/DRIVER FOR PC MOTHERBOARDS/SERVERS |
| CDC950DGG | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 133MHz Clk Synth RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| CDC950DGGG4 | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 133MHz Clk Synth RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
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