参数资料
型号: ICS841664AGILFT
厂商: IDT, Integrated Device Technology Inc
文件页数: 7/19页
文件大小: 0K
描述: IC CLOCK GENERATOR 28-TSSOP
标准包装: 1,000
系列: HiPerClockS™, FemtoClock™
类型: 时钟发生器,扇出配送,多路复用器
PLL: 带旁路
输入: LVCMOS,LVTTL,晶体
输出: HCSL,LVCMOS,LVTTL
电路数: 1
比率 - 输入:输出: 2:5
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: 28-TSSOP(0.240",6.10mm 宽)
供应商设备封装: 28-TSSOP
包装: 带卷 (TR)
其它名称: 841664AGILFT
ICS841664AGI REVISION A JULY 15, 2013
15
2013 Integrated Device Technology, Inc.
ICS841664I Data Sheet
FEMTOCLOCK CRYSTAL-TO-HCSL CLOCK GENERATOR
3. Calculations and Equations.
The purpose of this section is to calculate power dissipation on the IC per HCSL output pair.
HCSL output driver circuit and termination are shown in Figure 4.
Figure 4. HCSL Driver Circuit and Termination
HCSL is a current steering output which sources a maximum of 17mA of current per output. To calculate worst case on-chip power dissipation,
use the following equations which assume a 50
load to ground.
The highest power dissipation occurs when VDD_MAX.
Power
= (VDD_MAX – VOUT) * IOUT
since VOUT = IOUT * RL
Power
= (VDD_MAX – IOUT * RL) * IOUT
= (3.465V – 17mA * 50
) * 17mA
Total Power Dissipation per output pair = 44.5mW
VDD
VOUT
RL
50
IC
IOUT = 17mA
RREF =
475
± 1%
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