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參數(shù)資料
| 型號(hào)： | P2781A-08ST |
| 廠商： | ALLIANCE SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | ICs for Inductive Proximity Switches; Package: P-DSO-14; V<sub>CC</sub> (min): 5.0 V; V<sub>CC</sub> (max): 30.0 V; I<sub>CC</sub> (max): 0.9 mA; I<sub>Q</sub> (max): 50.0 mA; Operating Temperature (min): -25.0 degC; |
| 中文描述： | 78 MHz, OTHER CLOCK GENERATOR, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 2/11頁 |
| 文件大?。?/td> | 169K |
| 代理商： | P2781A-08ST |
July 2005
rev 1.5
Pin Configuration
Pin Description (P278XA)
Pin#
Pin Name
P2781/82/84
General Purpose EMI Reduction IC
2 of 11
Notice: The information in this document is subject to change without notice.
Type
Description
1
XIN/CLKIN
I
Connect to crystal or clock input. This pin has dual functions. It can be connected
either to an external crystal or an external reference clock.
Crystal connection. If using an external reference, this pin must be left
unconnected.
Digital logic input used to select input frequency range
(see the Input Frequency Selection Table). This pin has an internal pull-up
resistor.
External Loop Filter for the PLL. By changing the value of the CRC circuit, the
percentage spread can be adjusted accordingly. See the Loop Filter Selection
Table for detail value.
Ground Connection. Connect to system ground.
2
XOUT
O
3
FS1
I
4
LF
I
5
VSS
I
6
ModOUT
O
Spread Spectrum Clock Output.
Digital logic input used to select input frequency range
(see the Input Frequency Selection Table). This pin has an internal pull-up
resistor.
Connect to +3.3 V
7
FS0
I
8
VDD
P
Input Frequency Selection Table
Output Frequency Scaling (MHz)
P2781A
P2782A
3 to 9
6 to 18
10 to 19
20 to 38
20 to 38
40 to 76
39 to 78
78 to 156
FS1
FS0
Input (MHz)
P2784A
12 to 36
40 to 76
80 to 152
156 to 312
Modulation Rate (KHz)
0
0
1
1
0
1
0
1
3 to 9
10 to 19
20 to 38
39 to 78
Fin / 128
Fin / 256
Fin / 512
Fin / 1024
1
2
3
4
8
7
6
5
XIN / CLKIN
XOUT
FS1
LF
VDD
FS0
ModOUT
VSS
P278XA-08S
P278XA-08T
Standard pin Configuration offered in both
8 pin SOIC and TSSOP Packages
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P2781A-08TR | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:General Purpose EMI Reduction IC |
| P2781A-08TT | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:General Purpose EMI Reduction IC |
| P2781AF-08SR | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 3-78MHZ 3.3V 1X GP EMI RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| P2781AF-08ST | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:General Purpose EMI Reduction IC |
| P2781AF-08TR | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:General Purpose EMI Reduction IC |
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