Note 3, Cs5463, Analog characteristics – Cirrus Logic CS5463 User Manual
Page 8
CS5463
8
DS678F3
ANALOG CHARACTERISTICS
(Continued)
Notes: 3. Applies before system calibration.
4. All outputs unloaded. All inputs CMOS level.
5. Measurement method for PSRR: VREFIN tied to VREFOUT, VA+ = VD+ = 5 V, a 150 mV
(zero-to-peak) (60 Hz) sinewave is imposed onto the +5 V DC supply voltage at VA+ and VD+ pins. The
“+” and “-” input pins of both input channels are shorted to AGND. Then the CS5463 is commanded to
continuous conversion acquisition mode, and digital output data is collected for the channel under test.
The (zero-to-peak) value of the digital sinusoidal output signal is determined, and this value is converted
into the (zero-to-peak) value of the sinusoidal voltage (measured in mV) that would need to be applied
at the channel’s inputs, in order to cause the same digital sinusoidal output. This voltage is then defined
as Veq. PSRR is then (in dB)
:
6. When voltage level on PFMON is sagging, and LSD bit = 0, the voltage at which LSD is set to 1.
7. If the LSD bit has been set to 1 (because PFMON voltage fell below PMLO), this is the voltage level on
PFMON at which the LSD bit can be permanently reset back to 0.
Parameter
Symbol Min
Typ
Max
Unit
Analog Inputs (Voltage Channel)
Differential Input Range
[(VIN+) - (VIN-)]
VIN
- 500
-
mV
P-P
Total Harmonic Distortion
THD
65
75
-
dB
Crosstalk with Current Channel at Full Scale (50, 60 Hz)
-
-70
-
dB
Input Capacitance
All Gain Ranges
IC
-
0.2
-
pF
Effective Input Impedance
EII
2
-
-
M
Noise (Referred to Input)
N
V
-
140
-
µV
rms
Offset Drift (Without the High Pass Filter)
OD
-
16.0
-
µV/°C
Gain Error
GE
-
±3.0
%
Temperature Channel
Temperature Accuracy
T
-
±5
-
°C
Power Supplies
Power Supply Currents (Active State)
I
A+
I
D+
(VA+ = VD+ = 5 V)
I
D+
(VA+ = 5 V, VD+ = 3.3 V)
PSCA
PSCD
PSCD
-
-
-
1.1
2.9
1.7
-
-
-
mA
mA
mA
Power Consumption
Active State (VA+ = VD+ = 5 V)
Active State (VA+ = 5 V, VD+ = 3.3 V)
Stand-by State
Sleep State
PC
-
-
-
-
21
11.6
8
10
29
17.5
-
-
mW
mW
mW
µW
Power Supply Rejection Ratio
(50, 60 Hz)
Voltage Channel
Current Channel
PSRR
45
70
-
65
75
-
-
-
dB
dB
PFMON Low-voltage Trigger Threshold
PMLO
2.3
2.45
-
V
PFMON High-voltage Power-on Trip Point
PMHI
-
2.55
2.7
V
PSRR
20
150
V
eq
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