maxq3183-ran Maxim Integrated Products, Inc., maxq3183-ran Datasheet - Page 77

• Manufacturer Part Number: maxq3183-ran
• Description: Low-power, Multifunction, Polyphase Afe With Harmonics And Tamper Detect
• Manufacturer: Maxim Integrated Products, Inc.

The MAXQ3183 can monitor the RMS value of one auxiliary channel in addition to its normal processing. The
Auxiliary Channel Configuration register selects which input the auxiliary channel processes and what processing is
applied to the auxiliary channel.
Bit:
Name:
Reset:
Bit:
Name:
Reset:
15:13, 4
12:8
BIT
3:0
7
6
5
AUX_MUX
ENHARM
ENAUX
NAME
ORDH
INREV
ENHARM
Low-Power, Multifunction, Polyphase AFE
—
______________________________________________________________________________________
15
—
0
7
0
Reserved.
Order of Harmonic (1–21). The output of harmonic voltage is read via virtual register 0x830 and current
at 0x840.
Enable Auxiliary Channel Harmonic Filter. When set, the auxiliary channel is processed through the
harmonic filter. The parameters for this filter can be set in the B0HARM and A1HARM registers.
Enable Auxiliary Channel. When set, enables auxiliary channel processing.
Sets the sign of the neutral current, used in the vector sum calculation.
0 = positive, i.e., I
1 = negative, -I
Auxiliary Channel Input or Current Vector Sum Select. The lower three bits select the input to be
processed by the auxiliary channel if the MSB (bit 3) is cleared. When MSB is set, this field selects
vector sum computation:
1001 = I
1111 = I
0001 = I
0010 = V
0011 = I
0100 = V
0101 = I
0110 = V
0111 = I
All other values are reserved.
ENAUX
with Harmonics and Tamper Detect
14
A
A
A
B
—
N
C
0
6
0
A
B
C
+ I
+ I
B
B
+I
+ I
N
C
is summed with I
C
N
+ I
is directly summed with I
INREV
N
13
—
0
5
0
(INREV = 0) or I
Auxiliary Channel Configuration (AUX_CFG) (0x010)
A
+ I
12
—
0
4
0
B
A
+ I
+ I
C
B
.
A
FUNCTION
+ I
+ I
C
B
- I
11
+ I
0
3
0
N
C
(INREV = -1)
.
Neutral Current and Harmonics
ORDH
10
0
2
0
AUX_MUX
9
0
1
0
8
0
0
0
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