MAXQ3181-RAN+ Maxim Integrated Products, MAXQ3181-RAN+ Datasheet - Page 71
MAXQ3181-RAN+
Manufacturer Part Number
MAXQ3181-RAN+
Description
IC AFE POLYPHASE LO-PWR 28-TSSOP
Manufacturer
Maxim Integrated Products
Datasheet
1.MAXQ3181-RAN.pdf
(84 pages)
Specifications of MAXQ3181-RAN+
Number Of Channels
8
Power (watts)
35mW
Voltage - Supply, Analog
3.3V
Voltage - Supply, Digital
3.3V
Package / Case
28-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Bits
-
- Current page: 71 of 84
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This register establishes the sensitivity of the NS rejection filter setting. NS is a measure of the line frequency. If a line
cycle occurs that is shorter or longer than the line cycle represented in the NS register, this filter determines whether
the cycle is used to update the NS value. For more information, see the NS register description. If this register is
zero, noise rejection is disabled for the line cycle counter.
This register determines whether the NS value is averaged over previous values or whether the most recently measured
value is used directly. If the value of this register is nonzero, the NS value is averaged using the following formula:
If the value of this register is zero, NS is not averaged. The MSB of this register must be zero.
Bit:
Name:
Reset:
Bit:
Name:
Reset:
Bit:
Name:
Reset:
Bit:
Name:
Reset:
Low-Power, Active Energy, Polyphase AFE
______________________________________________________________________________________
15
15
7
7
14
14
6
6
y
n
13
13
5
5
Line Cycle Noise Rejection Filter High Byte
Line Cycle Noise Rejection Filter Low Byte
=
Line Cycle Averaging Filter High Byte
y
Line Cycle Averaging Filter Low Byte
n
−
Line Cycle Noise Rejection Filter (REJ_NS) (0x02C)
1
+
AVG NS
12
12
Line Cycle Averaging Filter (AVG_NS) (0x02E)
4
4
_
0xC8
0x00
0x40
0x00
x
n
2
−
16
y
11
11
3
3
n
−
1
10
10
2
2
Filter Coefficients
9
1
9
1
8
0
8
0
71
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