71M6521DE TERIDIAN [Teridian Semiconductor Corporation], 71M6521DE Datasheet - Page 91

• Manufacturer Part Number: 71M6521DE
• Description: Energy Meter IC
• Manufacturer: TERIDIAN [Teridian Semiconductor Corporation]

ADC CONVERTER, V3P3A REFERENCED
FIR_LEN=0, VREF_DIS=0, LSB values do not include the 9-bit left shift at CE input.
OPTICAL INTERFACE
TEMPERATURE SENSOR
†
††
v1.0
LSB values do not include the 9-bit left shift at CE input.
PARAMETER
Recommended Input Range
Voltage to Current Crosstalk:
THD (First 10 harmonics)
Input Impedance
Temperature coefficient of Input
Impedance
LSB size
Digital Full Scale
ADC Gain Error vs
%Power Supply Variation
Input Offset (Vin-V3P3A)
PARAMETER
OPT_TX V
OPT_TX V
PARAMETER
Nominal Sensitivity (S
Nominal (N
Temperature Error
10
250mV-pk
20mV-pk
N
n
6
is measured at T
*
Vcrosstalk
Vin
ERR
(Vin-V3P3A)
10
OH
OL
6
n
)
100
Δ
=
† †
(V3P3D-OPT_TX)
Nout
T
Δ
−
cos(
V
†
⎛
⎜ ⎜
⎝
PK
(
3
n
N
∠
P
n
during meter calibration and is stored in MPU or CE for use in temperature calculations.
357
)
(
3
Vin
T
†
A
S
)
nV
3 /
n
−
−
3 .
N
∠
/
V
n
Vcrosstalk
)
IN
+
T
n
⎞
⎟ ⎟
⎠
© 2005-2008 TERIDIAN Semiconductor Corporation
)
Vin=65Hz,
64kpts FFT, Blackman-
Harris window
Vin = 200mV peak, 65Hz,
on VA
Vcrosstalk = largest
measurement on IA or IB
Vin=65Hz
Vin=65Hz
FIR_LEN=0
FIR_LEN=1
FIR_LEN=0
FIR_LEN=1
Vin=200mV pk, 65Hz
V3P3A=3.0V, 3.6V
I
I
SOURCE
SINK
T
FIR_LEN = 1
Nominal relationship:
T
Tn = 25°C
N(T)= S
A
A
=20mA
=25ºC, T
= -40ºC to +85ºC
CONDITION
CONDITION
CONDITION
=1mA
n
*(T-T
A
=75ºC,
n
)+N
n
71M6521DE/71M6521FE
-250
MIN
MIN
MIN
-10
-10
-10
40
±2097152
Energy Meter IC
+884736
-2180
TYP
TYP
TYP
1.0
357
151
1.7
MAX
MAX
+10
0.4
0.7
MAX
DATASHEET
250
-75
-90
10
90
50
10
10
LSB/ºC
nV/LSB
UNIT
UNIT
ppm/%
JANUARY 2008
Page: 91 of 101
6
UNIT
μV/V
Ω/°C
peak
ºC
LSB
V
V
mV
mV
dB
dB
kΩ
LSB