参数资料
型号: CS5464-IS
厂商: Cirrus Logic Inc
文件页数: 35/46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
CS5464
E3MODE[1:0]
POS
AFC
E3 Output Mode (with E1MODE enabled)
00 = Power Fail Monitor
01 = Energy Sign
10 = not used
11 = not used
Positive Energy Only. Suppresses negative values in P1 AVG and P2 AVG . If a negative value is
calculated, zero will be stored instead.
Enables automatic line frequency measurement which sets Epsilon every time a new line fre-
quency measurement completes. Epsilon is used to control the gain of the 90 degree phase
shift integrator used in quadrature power calculations.
8.3.6 Line to Sample Frequency Ratio (Epsilon) – Address: 17
MSB
LSB
-(2 0 )
2 -1
2 -2
2 -3
2 -4
2 -5
2 -6
2 -7
.....
2 -17
2 -18
2 -19
2 -20
2 -21
2 -22
2 -23
Default = 0.0125 (4.0 kHz x 0.0125 or 50 Hz)
Epsilon is the ratio of the input line frequency to the output word rate (OWR). It can either be written by the ap-
plication program or calculated automatically from the line frequency (from the voltage input) using the AFC bit
in the Modes register. It is a two's complement value in the range of -1.0 ? value ? 1.0, with the binary point to
the right of the MSB. Negative values are not used.
8.3.7 Pulse Output Width (PulseWidth) – Address: 14
MSB
LSB
0
2 22
2 21
2 20
2 19
2 18
2 17
2 16
.....
2 6
2 5
2 4
2 3
2 2
2 1
2 0
Default = 1 (250 uS at OWR = 4 kHz)
PulseWidth sets the duration of energy pulses. The actual pulse duration is the contents of PulseWidth divided
by the output word rate (OWR). PulseWidth is an integer in the range of 1 to 8,388,607.
8.3.8 Pulse Output Rate (PulseRate) – Address: 15
MSB
LSB
-(2 0 )
2 -1
2 -2
2 -3
2 -4
2 -5
2 -6
2 -7
.....
2 -17
2 -18
2 -19
2 -20
2 -21
2 -22
2 -23
Default= -1
PulseRate sets the full-scale frequency for E1, E2, E3 pulse outputs. For a 4 kHz sample rate, the maximum
pulse rate is 2 kHz. This is a two's complement value in the range of -1 ? value ? 1, with the binary point to the
left of the MSB.
Refer to 6.10 Energy Pulse Rate on page 20 for more information.
DS682F3
35
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