Datasheet

78M6612 Data Sheet DS_6612_001
34 Rev 2
4.4.12 ADC Converter, V3P3A Referenced
FIR_LEN=0, VREF_DIS=0, LSB values do not include the 9-bit left shift at CE input.
Table 19: ADC Converter Performance Specifications
Parameter Condition Min Typ Max Unit
Recommended Input Range
(Vin-V3P3A)
-250 250
mV
peak
Voltage to Current Crosstalk:
)cos(
*10
6
VcrosstalkVin
Vin
Vcrosstalk
∠−∠
Vin = 200 mV peak,
65 Hz, on VA
Vcrosstalk = largest
measurement on IA or IB
-10 10 μV/V
THD (First 10 harmonics)
250 mV-pk
20 mV-pk
Vin=65 Hz,
64 kpts FFT, Blackman-
Harris window
-75
-90
dB
dB
Input Impedance Vin=65 Hz 40 90 kΩ
Temperature coefficient of Input
Impedance
Vin=65 Hz 1.7 Ω/°C
LSB size
FIR_LEN=0
FIR_LEN=1
357
151
nV/LSB
Digital Full Scale
FIR_LEN
=0
FIR_LEN=1
+884736
±2097152
LSB
ADC Gain Error vs
%Power Supply Variation
3.3/33100
/35710
6
APV
VnVNout
INPK
∆
∆
Vin=200 mV pk, 65 Hz
V3P3A=3.0V, 3.6V
50 ppm/%
Input Offset (Vin-V3P3A) -10 10 mV
4.4.13 UART1 Interface
Table 20: UART1 Interface Performance Specifications
Parameter
Condition
Min
Typ
Max
Unit
TX1 V
OH
(V3P3D-TX1)
I
SOURCE
=1 mA
0.4
V
TX1 VOL
ISINK=20 mA
0.7
V
4.4.14 Temperature Sensor
Table 21: Temperature Sensor Performance Specifications
Parameter
Condition
Min
Typ
Max
Unit
Nominal Sensitivity (S
n
)
†
T
A=25ºC, TA=75ºC,
FIR_LEN = 1
Nominal relationship:
N(T)= S
n
*(T-T
n
)+N
n
-2180 LSB/ºC
Nominal (N
n
)
† †
1.0
10
6
LSB
Temperature Error
†








+
−
−=
n
n
n
T
S
NTN
TERR
))((
T
A = -40ºC to +85ºC
Tn = 25°C
-10 +10 ºC
†
LSB values do not include the 9-bit left shift at CE input.
††
N
n
is measured at T
n
during calibration and is stored in MPU or CE for use in temperature calculations.