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| 型号： | CS5464-IS |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 14/46页 |
| 文件大小： | 0K |
| 描述： | IC PWR/ENERGY METER 3CH 28-SSOP |
| 标准包装： | 47 |
| 输入阻抗： | 30 千欧 |
| 测量误差： | 0.1% |
| 电压 - 高输入/输出： | 0.8V |
| 电压 - 低输入/输出： | 0.2V |
| 电流 - 电源： | 3.5mA |
| 电源电压： | 4.75 V ~ 5.25 V |
| 测量仪表类型： | 单相 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 管件 |
| 配用： | 598-1554-ND - BOARD EVAL FOR CS5464 ADC |
| 其它名称： | 598-1193-5 |
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CS5464
V1 OFF V1 GAIN
FGA
I1 OFF
I1 GAIN
Figure 3. Signal Flow for V1, I1, P1, Q1 Measurements
4. SIGNAL PATH DESCRIPTION
The data flow for voltage and current measurement and
the other calculations are shown in Figures 3 , 4 , and 5 .
The data flow consists of two current paths and two volt-
age paths. Both voltage paths are derived from the
same differential input pins. Each current path has its
own differential input pins.
4.1 Analog-to-Digital Converters
The voltage and temperature channels use second-or-
der delta-sigma modulators and the two current chan-
nels use fourth-order delta-sigma modulators to convert
the analog inputs to single-bit digital data streams. The
converters sample at a rate of DCLK/8. This high sam-
pling provides a wide dynamic range and simplifies an-
ti-alias filter design.
4.2 Decimation Filters
The single-bit modulator output data is widened to
24 bits and down-sampled to DCLK/1024 with low-pass
decimation filters. These decimation filters are third-or-
der Sinc. Their outputs are passed through third-order
IIR “anti-sinc” filters, used to compensate for the ampli-
tude roll-off of the decimation filters.
4.3 Phase Compensation
Phase compensation changes the phase of current rel-
ative to voltage by changing the sampling time in the
decimation filters. The amount of phase shift is set by
bits PC[7:0] in the Configuration register ( Config ) for
channel 1 and bits PC[7:0] in the Control register ( Ctrl )
for channel 2.
Phase compensation, PC[7:0] is a signed two’s comple-
ment binary value in the range of -1.0 to almost +1.0
output word rate (OWR) samples. For a sample rate of
4000 Hz, the delay range is ±250 ? S, a phase shift of
±4.5° at 50 Hz and ±5.4° at 60 Hz. The step size would
be 0.0352° at 50 Hz and 0.0422° at 60 Hz at this sample
rate.
V2 OFF V2 GAIN
I2 OFF
I2 GAIN
Figure 4. Signal Flow for V2, I2, P2, Q2 Measurements
14
DS682F3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CS5464-ISZ | 功能描述:电流和电力监控器、调节器 3-Ch Single Phase Power/Energy IC RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| CS5464-ISZR | 功能描述:电流和电力监控器、调节器 IC 3-Ch Single Phase PWR/Energy RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| CS5466 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:Low-cost Power/Energy IC with Pulse Output |
| CS5466_05 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:Low-cost Power/Energy IC with Pulse Output |
| CS5466-IS | 功能描述:电流和电力监控器、调节器 Low-Cost Pwr/Energy w/Pulse Output IC RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
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