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参数资料
| 型号： | ICS8S89834AKILFT |
| 厂商： | IDT, Integrated Device Technology Inc |
| 文件页数： | 5/17页 |
| 文件大小： | 0K |
| 描述： | IC CLOCK MUX 2:4 1GHZ 16-VFQFN |
| 标准包装： | 2,500 |
| 系列： | HiPerClockS™ |
| 类型： | 多路复用器 |
| 电路数： | 1 |
| 比率 - 输入:输出： | 2:4 |
| 差分 - 输入:输出： | 无/是 |
| 输入： | LVCMOS，LVTTL |
| 输出： | ECL，LVPECL |
| 频率 - 最大： | 1GHz |
| 电源电压： | 2.375 V ~ 3.63 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VFQFN 裸露焊盘 |
| 供应商设备封装： | 16-VFQFPN（3x3） |
| 包装： | 带卷 (TR) |
ICS8S89834I Data Sheet
LOW SKEW, 2-TO-4 LVCMOS/LVTTL-TO-LVPECL/ECL CLOCK MULTIPLEXER
ICS8S89834AKI REVISION A FEBRUARY 4, 2010
13
2010 Integrated Device Technology, Inc.
3. Calculations and Equations.
The purpose of this section is to calculate the power dissipation for the LVPECL output pairs.
LVPECL output driver circuit and termination are shown in Figure 5.
Figure 5. LVPECL Driver Circuit and Termination
To calculate worst case power dissipation into the load, use the following equations which assume a 50 load, and a termination voltage of
VCC – 2V.
For logic high, VOUT = VOH_MAX = VCC_MAX – 0.80V
(VCC_MAX – VOH_MAX) = 0.80V
For logic low, VOUT = VOL_MAX = VCC_MAX – 1.60V
(VCC_MAX – VOL_MAX) = 1.60V
Pd_H is power dissipation when the output drives high.
Pd_L is the power dissipation when the output drives low.
Pd_H = [(VOH_MAX– (VCC_MAX – 2V))/RL] * (VCC_MAX – VOH_MAX) = [(2V – (VCC_MAX – VOH_MAX))/RL] * (VCC_MAX – VOH_MAX) =
[(2V – 0.80V)/50
] * 0.80V = 19.20mW
Pd_L = [(VOL_MAX – (VCC_MAX – 2V))/RL] * (VCC_MAX – VOL_MAX) = [(2V – (VCC_MAX – VOL_MAX))/RL] * (VCO_MAX – VOL_MAX) =
[(2V – 1.60V)/50
] * 1.60V = 12.80mW
Total Power Dissipation per output pair = Pd_H + Pd_L = 32mW
V
OUT
V
CC
V
CC - 2V
Q1
RL
50
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相关代理商/技术参数 |
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|---|---|
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| ICS8S89875AKILFT | 制造商:Integrated Device Technology Inc 功能描述:IC CLK MULTPLX 1:2 2.5GHZ 16VFQF |
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