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| 型号： | CS5463-IS |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 38/46页 |
| 文件大小： | 0K |
| 描述： | IC PWR/ENERGY METER 2CH 24-SSOP |
| 标准包装： | 59 |
| 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： | 2.9mA |
| 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： | 24-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 管件 |
| 配用： | 598-1553-ND - BOARD EVAL & SOFTWARE CS5463 ADC |
| 其它名称： | 598-1192-5 |
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CS5463
each instantaneous measurement to nullify the DC
component present in the system during conversion
commands.
7.1.2.2 AC Offset Calibration Sequence
Corresponding offset registers I ACoff and/or V ACoff
should be cleared prior to initiating AC offset calibra-
tions. Initiate an AC offset calibration.The AC offset reg-
A typical rms calibration value which allows for reason-
able over-range margin would be 0.6 or 60% of the volt-
age and current channel’s maximum input voltage level.
Two examples of AC gain calibration and the updated
digital output codes of the channel’s instantaneous data
registers are shown in Figures 15 and 16. Figure 16
Before AC Gain Calibration (Vgn Register = 1)
isters are updated with an offset value that reflects the
250 mV
0.9999...
RMS output level. Upon completion of the AC offset cal-
Sinewave
230 mV
0.92
ibration the AC offset is stored in the corresponding AC
offset register. The AC offset register value is subtract-
INPUT
SIGNAL
0V
Instantaneous Voltage
Register Values
ed from each successive V RMS and I RMS calculation.
-230 mV
-250 mV
-0.92
-1.0000...
7.1.3 Gain Calibration Sequence
When performing gain calibrations, a reference signal
should be applied to the VIN ? pins of the voltage and
IIN ? pins of the current channels that represents the de-
sired maximum signal level. Figure 14 shows the basic
V RMS Register = 230 / ?? x 1 / 250 ?? 0.65054
After AC Gain Calibration (Vgn Register changed to approx. 0.9223)
250 mV 0.92231
setup for gain calibration.
Sinewave
230 mV
0.84853
External
INPUT
SIGNAL
0V
Instantaneous Voltage
Register Values
Connections
-230 mV
-0.84853
-
R eference
Signal
+
IN+
+
XG AIN
+
-250 mV
V RMS Register = ? 0.600000
-0.92231
-
CM
+
IN-
-
-
Figure 15. Example of AC Gain Calibration
Before AC Gain Calibration (Vgain Register = 1)
Figure 14. System Calibration of Gain.
250 mV
230 mV
0.9999...
0.92
For gain calibrations, there is an absolute limit on the
RMS voltage levels that are selected for the gain cali-
DC Signal
INPUT
SIGNAL
0V
Instantaneous Voltage
Register Values
bration input signals. The maximum value that the gain
V RMS Register = 250 = ? 0.92
registers can attain is 4. Therefore, if the signal level of
the applied input is low enough that it causes the
-250 mV
230
-1.0000...
CS5463 to attempt to set either gain register higher than
4, the gain calibration result will be invalid and all
CS5463 results obtained while performing measure-
ments will be invalid.
After AC Gain Calibration (Vgain Register changed to approx. 0.65217)
If the channel gain registers are initially set to a gain oth-
250 mV
230 mV
0.65217
0.6000
er then 1.0, AC gain calibration should be used.
7.1.3.1 AC Gain Calibration Sequence
DC Signal
INPUT
SIGNAL
0V
Instantaneous Voltage
Register Values
The corresponding gain register should be set to 1.0,
-250 mV
-0.65217
unless a different initial gain value is desired. Initiate an
AC gain calibration. The AC gain calibration algorithm
computes the RMS value of the reference signal applied
to the channel inputs. The RMS register value is then di-
vided into 0.6 and the quotient is stored in the corre-
sponding gain register. Each instantaneous
measurement will be multiplied by its corresponding AC
gain value.
38
V RMS Register = ? 0.600000
Figure 16. Example of AC Gain Calibration
shows that a positive (or negative) DC-level signal can
be used even though an AC gain calibration is being ex-
ecuted.
DS678F3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CS5463-ISZ | 功能描述:电流和电力监控器、调节器 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 |
| CS5463-ISZ/D | 制造商:Cirrus Logic 功能描述: |
| CS5463-ISZR | 功能描述:电流和电力监控器、调节器 IC 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 |
| CS5463-ISZR/E2 | 制造商:Cirrus Logic 功能描述: |
| CS5464 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:Three-channel, Single-phase Power/Energy IC |
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