参数资料
型号: CDB5351
厂商: Cirrus Logic Inc
文件页数: 3/16页
文件大小: 0K
描述: EVALUATION BOARD FOR CS5351
标准包装: 1
ADC 的数量: 2
位数: 24
采样率(每秒): 192k
数据接口: 串行
在以下条件下的电源(标准): 198mW @ 5V
工作温度: -10°C ~ 70°C
已用 IC / 零件: CS5351
已供物品:
产品目录页面: 756 (CN2011-ZH PDF)
相关产品: CS5351-KZZR-ND - IC ADC AUD 108DB 204KHZ 24-TSSOP
CS5351-KSZ-ND - IC ADC AUD 108DB 204KHZ 24-SOIC
CS5351-DZZR-ND - IC ADC AUD 108DB 204KHZ 24-TSSOP
598-1693-ND - IC ADC AUD 108DB 204KHZ 24-TSSOP
598-1085-5-ND - IC ADC AUD 108DB 204KHZ 24-TSSOP
598-1084-5-ND - IC ADC AUD 108DB 204KHZ 24-TSSOP
其它名称: 598-1781
IDT / ICS 3.3V LVPECL CLOCK GENERATOR
11
ICS843001AG REV B March 2, 2009
ICS843001
FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR
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 4.
To calculate worst case power dissipation into the load, use the following equations which assume a 50
load, and a termination
voltage of V
CC
- 2V.
For logic high, V
OUT
= V
OH_MAX
= V
CC_MAX
– 0.9V
(V
CCO_MAX
- V
OH_MAX
) = 0.9V
For logic low, V
OUT
= V
OL_MAX
= V
CC_MAX
– 1.7V
(V
CCO_MAX
- V
OL_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 = [(V
OH_MAX
– (V
CC_MAX
- 2V))/R
L
] * (V
CC_MAX
- V
OH_MAX
) = [(2V - (V
CC_MAX
- V
OH_MAX
))/R
L
] * (V
CC_MAX
- V
OH_MAX
) =
[(2V - 0.9V)/50
] * 0.9V = 19.8mW
Pd_L = [(V
OL_MAX
– (V
CC_MAX
- 2V))/R
L
] * (V
CC_MAX
- V
OL_MAX
) = [(2V - (V
CC_MAX
- V
OL_MAX
))/R
L
] * (V
CC_MAX
- V
OL_MAX
) =
[(2V - 1.7V)/50
] * 1.7V = 10.2mW
Total Power Dissipation per output pair = Pd_H + Pd_L = 30mW
FIGURE 4. LVPECL DRIVER CIRCUIT AND TERMINATION
Q1
V
OUT
V
CC
RL
50
V
CC - 2V
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