71M6521DE Datasheet, PDF (94/107 Pages) Teridian Semiconductor Corporation – Energy Meter IC

71M6521DE/DH/FE Data Sheet
LCD DRIVERS
Applies to all COM and SEG pins.
PARAMETER
CONDITION
MIN
VLC2 Max Voltage
With respect to VLCD
-0.1
VLC1 Voltage,
1/3 bias
½ bias
With respect to 2*VLC2/3
-4
With respect to VLC2/2
-3
VLC0 Voltage,
1/3 bias
½ bias
With respect to VLC2/3
-3
With respect to VLC2/2
-3
VLCD is V3P3SYS in MISSION mode and VBAT in BROWNOUT and LCD modes.
TYP MAX
+0.1
0
+2
+2
+2
UNIT
V
%
%
%
%
ADC CONVERTER, V3P3A REFERENCED
FIR_LEN=0, VREF_DIS=0, LSB values do not include the 9-bit left shift at CE input.
PARAMETER
CONDITION
MIN
Recommended Input Range
(Vin-V3P3A)
-250
Voltage to Current Crosstalk:
Vin = 200 mV peak, 65
Hz, on VA
10⁶ *Vcrosstalk _{cos(∠Vin − ∠Vcrosstalk)}
Vin
Vcrosstalk = largest
-10¹
measurement on IA or IB
THD (First 10 harmonics)
250mV-pk
20mV-pk
Input Impedance
Temperature coefficient of Input
Impedance
LSB size
Digital Full Scale
ADC Gain Error vs
%Power Supply Variation
10⁶ ∆Nout_PK 357nV /V_IN
100 ∆V 3P3A / 3.3
Input Offset (Vin-V3P3A)
Vin=65 Hz,
64 kpts FFT, Blackman-
Harris window
Vin=65 Hz
40
Vin=65 Hz
FIR_LEN=0
FIR_LEN=1
FIR_LEN=0
FIR_LEN=1
Vin=200 mV pk, 65 Hz
V3P3A=3.0 V, 3.6 V
-10
1_{Guaranteed by design; not production tested.}
TYP
MAX
250
10¹
-75
-90
90
1.7
357
151
+884736
±2097152
50
10
UNIT
mV
peak
μV/V
dB
dB
kΩ
Ω/°C
nV/LSB
LSB
ppm/%
mV
Page: 94 of 107
Rev 2