参数资料
型号: LMP90078MH/NOPB
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO28
封装: LEAD FREE, PLASTIC, MO-153, TSSOP-28
文件页数: 19/62页
文件大小: 1721K
代理商: LMP90078MH/NOPB
0
200
400
600
800
1000
1200
1400
1600
1800
2000
-120
-80
-40
0
GAIN
(dB)
FREQUENCY (Hz)
107.325 SPS
214.65 SPS
30169787
FIGURE 9. Digital Filter Response 107.325 SPS and 214.65 SPS
If the internal CLK is not being used and the external CLK is not 3.5717 MHz, then the filter response would be the same as the
response shown above, but the frequency will change according to the equation:
f
NEW = [(CLKEXT) / 256 ] x (fOLD / 13.952k)
Using the equation above, an example of the filter response for a 3.5717 MHz XTAL versus a 3.6864 MHz XTAL can be seen in
40
45
50
55
60
65
70
-140
-120
-100
-80
-60
-40
-20
0
GAIN
(dB)
FREQUENCY (Hz)
Crystal = 3.5717 MHz
Crystal = 3.6864 MHz
30169756
FIGURE 10. Digital Filter Response for a 3.5717MHz
versus 3.6864 MHz XTAL
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LMP90080/LMP90079/LMP90078/LMP90077
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相关代理商/技术参数
参数描述
LMP90078MHX/NOPB 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
LMP90079 制造商:NSC 制造商全称:National Semiconductor 功能描述:Sensor AFE System: Multi-Channel, Low-Power 16-Bit
LMP90079MH/NOPB 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
LMP90079MHE/NOPB 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
LMP90079MHX/NOPB 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32