CS5464-IS Cirrus Logic Inc, CS5464-IS Datasheet - Page 33

• Manufacturer Part Number: CS5464-IS
• Description: Other Power Management 3-Ch Single Phase Power/Energy IC
• Manufacturer: Cirrus Logic Inc

Specifications of CS5464-IS

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

8.3 Page 1 Registers
8.3.1 DC Offset for Current (I1
8.3.2 Gain for Current (I1
8.3.3 Power Offset (P1
8.3.4 AC Offset for Current (I1
DS682F1
MSB
MSB
MSB
MSB
-(2
-(2
-(2
2
1
Address: 0 ( I1
0
Default = 0
DC offset registers I1
selected registers are written with the inverse of the DC offset measured. The application program can also write
the DC offset register values. These are two's complement values in the range of -1.0 ≤ value < 1.0, with the
binary point to the right of the MSB.
Address: 1 ( I1
Default = 1.0
Gain registers I1
selected register are written with the multiplicative inverse of the gain measured. These are unsigned fixed-point
values in the range of 0 ≤ value < 4.0, with the binary point to the right of the second MSB.
0
Default = 0
Power offset P1
P1
values in the range of -1.0 ≤ value < 1.0, with the binary point to the right of the MSB.
Address: 5 ( I1
0
Default = 0
AC offset registers I1
the RMS results before being stored to the RMS result registers. They can be used to reduce systematic errors
in the RMS results. These are two's complement values in the range of -1.0 ≤ value < 1.0, with the binary point
to the right of the MSB.
)
)
)
Address: 4 ( P1
AVG
2
2
2
2
-1
-1
-1
0
( P2
AVG
2
2
2
2
-2
-1
-2
-2
OFF
GAIN
ACOFF
) register results. It can be used to reduce systematic energy errors. These are two's complement
OFF
GAIN
OFF
), 2 ( V1
), 3 ( V1
2
2
2
2
( P2
), 6 ( V1
-3
-2
-3
-3
ACOFF
OFF
& V1
), 11 ( P2
OFF
OFF
GAIN
OFF
& V1
GAIN
GAIN
, P2
2
2
2
2
) is added to instantaneous power and averaged over a low-rate interval to yield
& V1
ACOFF
-4
-3
-4
-4
), 7 ( I2
, I2
ACOFF
OFF
OFF
OFF
), 8 ( I2
(
OFF
I2
ACOFF
GAIN
GAIN
), 12 ( I2
2
2
2
2
, I2
(
)
-5
-4
-5
-5
I2
OFF
)
OFF
GAIN
, I2
OFF
& V2
) and Voltage (V1
), 9 ( V2
(
V
ACOFF
2
2
2
2
& V2
ACOFF
), 10 ( V2
ACOFF
-6
-5
-6
-6
) and Voltage (V1
GAIN
OFF
OFF
)
), 13 ( V2
) and Voltage (V1
&
2
2
2
2
are initialized to 1.0 on reset. During AC or DC gain calibration,
-7
-6
-7
-7
)
V2
)
GAIN
are initialized to zero on reset. During DC offset calibration,
ACOFF
)
.....
.....
.....
.....
ACOFF
GAIN
)
are initialized to zero on reset. These are added to
2
2
2
2
OFF
)
-17
-16
-17
-17
, V2
, V2
ACOFF
GAIN
2
2
2
2
-18
-17
-18
-18
OFF
)
, V2
)
2
2
2
2
-19
-18
-19
-19
ACOFF
2
2
2
2
-20
-19
-20
-20
)
2
2
2
2
-21
-20
-21
-21
CS5464
2
2
2
2
-22
-21
-22
-22
LSB
LSB
LSB
LSB
2
2
2
2
-23
-22
-23
-23
33