CS5490
3. CHARACTERISTICS & SPECIFICATIONS
RECOMMENDED OPERATING CONDITIONS
Parameter
Positive Analog Power Supply
Specified Temperature Range
Symbol
VDDA
T
A
Min
3.0
-40
Typ
3.3
-
Max
3.6
+85
Unit
V
°C
POWER MEASUREMENT CHARACTERISTICS
Parameter
Active Energy
All Gain Ranges
Current Channel Input Signal Dynamic Range 4000:1
All Gain Ranges
Current Channel Input Signal Dynamic Range 4000:1
All Gain Ranges
Current Channel Input Signal Dynamic Range 1000:1
All Gain Ranges
Current Channel Input Signal Dynamic Range 1000:1
Voltage Channel Input Signal Dynamic Range 20:1
All Gain Ranges
Current Channel Input Signal Dynamic Range 1000:1
Symbol
P
Avg
Q
Avg
S
I
RMS
V
RMS
PF
Min
-
-
-
-
-
-
Typ
±0.1
±0.1
±0.1
±0.1
±0.1
±0.1
Max
-
-
-
-
-
-
Unit
%
%
%
%
%
%
Reactive Energy
Apparent Power
Current RMS
Voltage RMS
Power Factor
Notes: 1. Specifications guaranteed by design and characterization.
2. Active energy is tested with power factor PF = 1.0. Reactive energy is tested with Sin(
) = 1.0. Energy error measured at system
level using single energy pulse. Where: 1) One energy pulse = 0.5Wh or 0.5Varh; 2) VDDA = +3.3V,
T
A
= 25°C, MCLK = 4.096MHz;
3) System is calibrated.
3. Calculated using register values; N
≥
4000.
4. I
RMS
error calculated using register values. 1) VDDA = +3.3V;
T
A
= 25°C; MCLK = 4.096MHz; 2) AC offset calibration applied.
TYPICAL LOAD PERFORMANCE
• Energy error measured at system level using single energy pulse; where 1 energy pulse = 0.5Wh or 0.5Varh.
• I
RMS
error calculated using register values
• VDDA = +3.3V; T
A
= 25°C; MCLK = 4.096MHz
1
0.5
Percent Error (%)
0
Lagging PF = 0.5
Leading PF = 0.5
PF = 1
-0.5
-1
0
500
1000
1500
2000
2500
3000
3500
4000
4500
Current Dynamic Range (x : 1
)
Figure 3. Active Energy Load Performance
8
DS982F2
APEX [ CIRRUS LOGIC ]
