- 您现在的位置：买卖IC网 > PDF目录26839 > MPC9990FAR2 (MOTOROLA INC) PLL BASED CLOCK DRIVER, 11 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48 PDF资料下载
参数资料
| 型号： | MPC9990FAR2 |
| 厂商： | MOTOROLA INC |
| 元件分类： | 时钟及定时 |
| 英文描述： | PLL BASED CLOCK DRIVER, 11 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48 |
| 封装： | PLASTIC, LQFP-48 |
| 文件页数： | 10/10页 |
| 文件大小： | 203K |
| 代理商： | MPC9990FAR2 |
MPC9990
MOTOROLA ADVANCED CLOCK DRIVERS DEVICE DATA
295
Calculating the Power Consumption
The total power dissipated in the MPC9990 (PTOT) can be
represented by this formula:
PTOT = PCORE + (N POUTPUT)
where PCORE is the core and PLL power consumption (VCC
and VCCA pins), POUTPUT is the power consumption of the out-
put drivers (VCCO pins) and N is the number of terminated out-
puts:
PCORE = VCC ICC
POUTPUT = (VCCO - VOUT) [(VX - VTT) ÷ RTERM]
ICC is the current consumption of the core including the cur-
rent consumption of the PLL. VX represents the average output
voltage for a 50% duty cycle output signal. VX and ICC can be
obtained from the specification values. VCC, VCCO, and the
termination resistor RTERM are application-dependent.
Table 9: Example Calculation
Term
Value (worst case)
Value (typical case)
VCC
3.3V+5%
3.3V
ICCa
180 mA
141 mA
PCORE
624 mW
465 mW
VCCO
2.1V
1.8V
VOUTb
0.68V
0.8V
VX
0.9V
0.8V
VTT
0V
RTERM
50
50
POUTPUT
25.5 mW
16 mW
N
24
PTOT
1237 mW
849 mW
a. ICC already includes ICCA.
b. The value for VOUT is average output voltage assuming the duty
cycle of the output is approx. 50%.
2
相关PDF资料 |
PDF描述 |
|---|---|
| MPC9991FAR2 | PLL BASED CLOCK DRIVER, 13 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP52 |
| MPC99J93FAR2 | PLL BASED CLOCK DRIVER, 5 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| MPDU281-2.0 | SILICON DELAY LINE, PDIP16 |
| MPDU282-2.0 | SILICON DELAY LINE, PDIP16 |
| MPDU482-4.5 | SILICON DELAY LINE, PDIP24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC9992 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:3.3 DIFFRERENTIAL ECL/PECL PLL CLOCK GENERATOR |
| MPC9992AC | 功能描述:时钟发生器及支持产品 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
| MPC9992ACR2 | 功能描述:时钟发生器及支持产品 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
| MPC9992FA | 功能描述:锁相环 - PLL 2.5 3.3V 400MHz Clock Generator RoHS:否 制造商:Silicon Labs 类型:PLL Clock Multiplier 电路数量:1 最大输入频率:710 MHz 最小输入频率:0.002 MHz 输出频率范围:0.002 MHz to 808 MHz 电源电压-最大:3.63 V 电源电压-最小:1.71 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:QFN-36 封装:Tray |
| MPC9992FAR2 | 制造商:Integrated Device Technology Inc 功能描述:PLL Clock Driver Single 32-Pin LQFP T/R |
发布紧急采购，3分钟左右您将得到回复。