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MAXQ3180-RAN+ датащи(PDF) 78 Page - Maxim Integrated Products

номер детали MAXQ3180-RAN+
подробное описание детали  Low-Power, Multifunction, Polyphase AFE
PDF  101 Pages
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производитель  MAXIM [Maxim Integrated Products]
домашняя страница  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAXQ3180-RAN+ датащи(HTML) 78 Page - Maxim Integrated Products

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Low-Power, Multifunction, Polyphase AFE
78
______________________________________________________________________________________
Cycle Count (CYCNT) (0x01C)
This register contains the number of line cycles that will be accumulated in a single DSP cycle. When CYCNT line
cycles have been accumulated, the DSP performs power, power factor, and energy calculations. By default, the
cycle count is 0x10 (16 decimal).
Number of Scan Frames per DSP Cycle (NS) (0x040)
The NS register defines the fundamental timing for the electricity meter. It defines a DSP cycle in terms the period of
the ADC scan frame. Generally, this register is calculated and updated automatically by the MAXQ3180 firmware
based on the zero-crossing detection, and whether noise rejection (REJ_NS) and averaging (AVG_NS) are enabled.
Host code can write to this register in order to set the desired DSP cycle duration. The duration of one scan frame
(tFR) is represented as 0x00010000.
Bit:
15
14
13
12
11
10
9
8
Name:
Cycle Count High Byte
Reset:
0x00
Bit:
7
6
5
4
3
2
1
0
Name:
Cycle Count Low Byte
Reset:
0x10
Bit:
31
30
29
28
27
26
25
24
Name:
Integer Portion, High Byte
Reset:
0x03
Bit:
23
22
21
20
19
18
17
16
Name:
Integer Portion, Low Byte
Reset:
0xE8
Bit:
15
14
13
12
11
10
9
8
Name:
Fractional Portion, High Byte
Reset:
0x00
Bit:
7
6
5
4
3
2
1
0
Name:
Fractional Portion, Low Byte
Reset:
0x00



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