CS5460-BS 查看數據表（PDF） - Cirrus Logic
零件编号
产品描述 (功能)
生产厂家
CS5460-BS Datasheet PDF : 34 Pages
| |||
CS5460
4.4 Cycle Count Register
Address: RA[4:0]* = 0x05
MSB
LSB
223 222 221 220 219 218 217 216 .....
26
25
24
23
22
21
20
Default** = 4000
The Cycle Count Register determines the length of an energy and RMS conversion. A conversion cycle is de-
rived from (MCLK/K)/(1024∗N) where MCLK is master clock, K is clock divider, and N is cycle count. N must be
greater than 10 for IRMS, VRMS and energy calculations to be performed.
4.5 Pulse-Rate Register
Address: RA[4:0]* = 0x06
MSB
LSB
218
217
216
215
214
213
212
211
.....
21
20
2-1
2-2
2-3
2-4
2-5
Default** = 32000.00Hz
The Pulse-Rate Register determines the frequency of the train of pulses output on the EOUT pin. Each EOUT
pulse represents a predetermined magnitude of energy.The register’s smallest valid value is 2-4 but can be in
2-5 increments.
4.6 I,V,P,E Signed Output Register Results
Address: RA[4:0]* = 0x07 - 0x0A
MSB
LSB
SIGN 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
Access: Read Only
The Signed Registers contain the last value of the measured results of I, V, P, and E. The results are in the
range of -1.0 ≤ I, V, P, E < 1.0. The value is represented in two's complement notation, with the binary point
place to the right of the MSB (which is the sign bit). I, V, P, and E are output results registers which contain
signed values.
4.7 IRMS, VRMS Unsigned Output Register Results
Address: RA[4:0]* = 0x0B - 0x0C
MSB
LSB
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
..... 2-18 2-19 2-20 2-21 2-22 2-23 2-24
Access: Read Only
The Unsigned Registers contain the last value of the calculated results of IRMS and VRMS. The results are in the
range of 0.0 ≤ IRMS,VRMS < 1.0. The value is represented in binary notation, with the binary point place to the
left of the MSB. IRMS and VRMS are output result registers which contain unsigned values.
DS279PP5
23
Share Link: 