- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄381362 > ASM2I9940LG-32-ET (ALLIANCE SEMICONDUCTOR CORP) RES, 0603, 5%, 120 OHMS PDF資料下載
參數(shù)資料
| 型號： | ASM2I9940LG-32-ET |
| 廠商： | ALLIANCE SEMICONDUCTOR CORP |
| 元件分類： | 時鐘及定時 |
| 英文描述： | RES, 0603, 5%, 120 OHMS |
| 中文描述： | 9940 SERIES, LOW SKEW CLOCK DRIVER, 18 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| 封裝： | 7 X 7 MM, 0.80 MM PITCH, GREEN, TQFP-32 |
| 文件頁數(shù)： | 9/13頁 |
| 文件大?。?/td> | 223K |
| 代理商： | ASM2I9940LG-32-ET |
June 2005
rev 1.0
T
J
,MAX should be selected according to the MTBF
system requirements and Table 11. R
thja
can be derived
from Table 12. The R
thja
represent data based on 1S2P
boards, using 2S2P boards will result in a lower thermal
impedance than indicated below.
Table 12. Thermal package impedance of the
32LQFP
Convection,
LFPM
board),
°
C/W
Still air
86
100 lfpm
76
200 lfpm
71
300 lfpm
68
400 lfpm
66
500 lfpm
60
ASM2I9940L
Low Voltage 1:18 Clock Distribution Chip
9 of
13
Notice: The information in this document is subject to change without notice.
R
thja
(1P2S
R
thja
(2P2S
board),
°
C/W
61
56
54
53
52
49
If the calculated maximum frequency is below 250MHz, it
becomes the upper clock speed limit for the given
application conditions. The following eight derating charts
describe the safe frequency operation range for the
ASM2I9940L. The charts were calculated for a maximum
tolerable die junction temperature of 110
°
C (120
°
C),
corresponding to an estimated MTBF of 9.1 years
(4 years), a supply voltage of 3.3V and series terminated
transmission line or capacitive loading. Depending on a
given set of these operating conditions and the available
device convection a decision on the maximum operating
frequency can be made.
相關PDF資料 |
PDF描述 |
|---|---|
| ASM2I9940LG-32-LR | Low Voltage 1:18 Clock Distribution Chip |
| ASM2I9940LG-32-LT | Low Voltage 1:18 Clock Distribution Chip |
| ASM2I9942CG-32-ER | Low Voltage 1:18 Clock Distribution Chip |
| ASM2I9942CG-32-ET | Low Voltage 1:18 Clock Distribution Chip |
| ASM2I9942CG-32-LR | Low Voltage 1:18 Clock Distribution Chip |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ASM2I9940LG-32-LR | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:Low Voltage 1:18 Clock Distribution Chip |
| ASM2I9940LG-32LT | 功能描述:時鐘驅動器及分配 250M 2.5/3.3V 18 O/P NZDB RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
| ASM2I9940LG-32-LT | 制造商:PULSECORE 制造商全稱:PulseCore Semiconductor 功能描述:Low Voltage 1:18 Clock Distribution Chip |
| ASM2I9942C | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:Low Voltage 1:18 Clock Distribution Chip |
| ASM2I9942C-32-ER | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:Low Voltage 1:18 Clock Distribution Chip |
發(fā)布緊急采購，3分鐘左右您將得到回復。