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參數(shù)資料
| 型號(hào)： | ASM2I99446G-32-ET |
| 廠商： | ALLIANCE SEMICONDUCTOR CORP |
| 元件分類： | 時(shí)鐘及定時(shí) |
| 英文描述： | CONV DC-DC 120W 48VIN 1.2V SMD |
| 中文描述： | 99446 SERIES, LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| 封裝： | 7 X 7 MM, GREEN, TQFP-32 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大小： | 575K |
| 代理商： | ASM2I99446G-32-ET |
July 2005
rev 0.4
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.
ASM2I99446
2.5V and 3.3V LVCMOS Clock Distribution Buffer 10 of
14
Notice: The information in this document is subject to change without notice.
Table 12. Thermal package impedance of the
32LQFP
Convection,
LFPM
Still air
100 lfpm
200 lfpm
300 lfpm
400 lfpm
500 lfpm
R
thja
(1P2S
board),
°
C/W
86
76
71
68
66
60
R
thja
(2P2S
board),
°
C/W
61
56
54
53
52
49
If the calculated maximum frequency is below 350 MHz, 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
ASM2I99446. 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(guān)PDF資料 |
PDF描述 |
|---|---|
| ASM2I99446G-32-LR | 2.5V and 3.3V LVCMOS Clock Distribution Buffer |
| ASM2I99446G-32-LT | 2.5V and 3.3V LVCMOS Clock Distribution Buffer |
| ASM2I99447 | 3.3V/2.5V 1:9 LVCMOS Clock Fanout Buffer |
| ASM2I99448G-32-ER | 3.3V/2.5V LVCMOS 1:12 Clock Fanout Buffer |
| ASM2I99448G-32-ET | 3.3V/2.5V LVCMOS 1:12 Clock Fanout Buffer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ASM2I99446G-32-LR | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V and 3.3V LVCMOS Clock Distribution Buffer |
| ASM2I99446G-32-LT | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V and 3.3V LVCMOS Clock Distribution Buffer |
| ASM2I99447 | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:3.3V/2.5V 1:9 LVCMOS Clock Fanout Buffer |
| ASM2I99448 | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:3.3V/2.5V LVCMOS 1:12 Clock Fanout Buffer |
| ASM2I99448-32-ER | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:3.3V/2.5V LVCMOS 1:12 Clock Fanout Buffer |
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