- 您现在的位置：买卖IC网 > PDF目录8989 > ICS843253AGI-45LFT (IDT, Integrated Device Technology Inc)IC SYNTHESIZER LVPECL 16-TSSOP PDF资料下载
参数资料
| 型号： | ICS843253AGI-45LFT |
| 厂商： | IDT, Integrated Device Technology Inc |
| 文件页数： | 3/15页 |
| 文件大小： | 0K |
| 描述： | IC SYNTHESIZER LVPECL 16-TSSOP |
| 标准包装： | 2,500 |
| 系列： | HiPerClockS™, FemtoClock™ |
| 类型： | 频率合成器 |
| PLL： | 带旁路 |
| 输入： | 晶体 |
| 输出： | LVCMOS，LVPECL，LVTTL |
| 电路数： | 1 |
| 比率 - 输入:输出： | 1:3 |
| 差分 - 输入:输出： | 无/是 |
| 频率 - 最大： | 156.25MHz |
| 除法器/乘法器： | 是/无 |
| 电源电压： | 3.135 V ~ 3.465 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
| 其它名称： | 843253AGI-45LFT |
ICS843253I-45
FEMTOCLOCK CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
ICS843253AGI-45 REVISION A JULY 20, 2009
11
2009 Integrated Device Technology, Inc.
3. Calculations and Equations.
The purpose of this section is to derive the power dissipated into the load.
LVPECL output driver circuit and termination are shown in Figure 6.
Figure 6. 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 – 0.9V
(VCC_MAX – VOH_MAX) = 0.9V
For logic low, VOUT = VOL_MAX = VCO_MAX – 1.7V
(VCC_MAX – VOL_MAX) = 1.7V
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 – 0.9V)/50
] * 0.9V = 19.8mW
Pd_L = [(VOL_MAX – (VCC_MAX – 2V))/RL] * (VCC_MAX – VOL_MAX) = [(2V – (VCC_MAX – VOL_MAX))/RL] * (VCC_MAX – VOL_MAX) =
[(2V – 1.7V)/50
] * 1.7V = 10.2mW
Total Power Dissipation per output pair = Pd_H + Pd_L = 30mW
V
OUT
V
CCO
V
CCO - 2V
Q1
RL
50
相关PDF资料 |
PDF描述 |
|---|---|
| VI-BNK-MV-F3 | CONVERTER MOD DC/DC 40V 150W |
| VE-JTR-MZ-F1 | CONVERTER MOD DC/DC 7.5V 25W |
| VI-BNK-MV-F2 | CONVERTER MOD DC/DC 40V 150W |
| MPC9893AER2 | IC PLL CLK GEN 1:12 3.3V 48-LQFP |
| VE-JTM-MZ-F4 | CONVERTER MOD DC/DC 10V 25W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS843256 | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER |
| ICS843256AG | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER |
| ICS843256AGILF | 制造商:Integrated Device Technology Inc 功能描述:PLL Frequency Synthesizer Single 24-Pin TSSOP Tube |
| ICS843256AGLF | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER |
| ICS843256AGLFT | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER |
发布紧急采购，3分钟左右您将得到回复。