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參數(shù)資料
| 型號(hào)： | ASM2I9940LG-32-ET |
| 廠商： | ALLIANCE SEMICONDUCTOR CORP |
| 元件分類： | 時(shí)鐘及定時(shí) |
| 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)： | 7/13頁 |
| 文件大小： | 223K |
| 代理商： | ASM2I9940LG-32-ET |
June 2005
rev 1.0
ASM2I9940L
Low Voltage 1:18 Clock Distribution Chip
7 of
13
Notice: The information in this document is subject to change without notice.
Figure 1. LVCMOS_CLK ASM2I9940L AC Test Reference for V
CC
= 3.3V and V
CC
= 2.5V
V
TT
V
TT
Figure 2. PECL_CLK ASM2I9940L AC Test Reference for V
CC
= 3.3V and V
CC
= 2.5V
V
CC
÷2
GND
Figure 3. Propagation Delay (t
PD
) Test Reference
PECL_CLK
Q
V
PP
V
CMR
V
CC
t
PD
PECL_CLK
V
CC
÷2
GND
V
C
V
CC
÷2
GND
LVCMOS_CLK
Q
V
C
t
PD
Figure 4. LVCMOS Propagation Delay (t
PD
) Test Reference
The time from the PLL controlled edge to the
non-controlled edge, divided by the time
between PLL controlled edges, expressed as a
percentage.
Figure 5. Output Duty Cycle (DC)
V
CC
V
CC
÷2
GND
DC (t
P
÷T
0
Χ
100%)
t
P
T
0
t
SK(O)
V
OH
V
CC
÷2
GND
V
CC
V
CC
÷2
GND
The pin-to-pin skew is defined as the worst case
difference in propagation delay between any similar
delay path within a single device
Figure 6. Output–to–Output Skew t
SK(O)
t
R
V
CC
= 3.3V V
CC
= 2.5V
2.4
0.55 0.6V
1.8V
t
F
Figure 7. Output Transition Time Test Reference
t
R
V
CC
= 3.3V V
CC
= 2.5V
2.0 1.7V
0.8 0.7V
t
F
Figure 8. Input Transition Time Test Reference
Pulse
Generator
Z=50
Z
0
=50
Z
0
=50
R
T
=50
R
T
=50
V
TT
ASM2I9940L
Differential
Pulse Generator
Z=50
Z
0
=50
Z
0
=50
R
T
= 50
V
TT
R
T
=50
ASM2I9940L
相關(guān)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(guān)代理商/技術(shù)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(shí)鐘驅(qū)動(dòng)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 |
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