MAXQ3183 datasheet(6/102 Pages) MAXIM

Part #	MAXQ3183

Description	Low-Power, Multifunction, Polyphase AFE with Harmonics and Tamper Detect

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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6 / 102 page

Low-Power, Multifunction, Polyphase AFE

with Harmonics and Tamper Detect

6

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Calibrating Power/Energy Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

Multipoint Phase Offset Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

Advanced Register Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

Analog Scan Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

Time Slot Assignment—Current Channel X = A/B/C (SCAN_IX) (A: 0x008, B: 0x00C, C: 0x00A) . . . . . . . . .73

Time Slot Assignment—Voltage Channel X = A/B/C (SCAN_VX) (A: 0x009, B: 0x00D, C: 0x00B) . . . . . . . .74

Time Slot Assignment—Neutral Current Channel (SCAN_IN) (0x00E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Time Slot Assignment—Temperature Channel (SCAN_TE) (0x00F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Neutral Current and Harmonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

Auxiliary Channel Configuration (AUX_CFG) (0x010) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

DSP System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

System Clock Frequency (SYS_KHZ) (0x012) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

Cycle Count (CYCNT) (0x01C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

Number of Scan Frames per DSP Cycle (NS) (0x040) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

Filter Coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

Line Cycle Noise Rejection Filter (REJ_NS) (0x02C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

Line Cycle Averaging Filter (AVG_NS) (0x02E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

Meter Measurement Averaging Filter (AVG_C) (0x030) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

Meter Measurement Highpass Filter (HPF_C) (0x032) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

Fundamental Filter Feed-Forward Coefficient (B0FUND) (0x034) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

Fundamental Filter Feedback Coefficient (A1FUND) (0x036) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

Harmonic Filter Feed-Forward Coefficient (B0HARM) (0x03A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

Harmonic Filter Feedback Coefficient (A1HARM) (0x03C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83

Zero-Cross Lowpass Filter (ZC_LPF) (0x05A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83

Hardware Mirror Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

ADC Configuration (R_ACFG) (0x04C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

ADC Conversion Rate (R_ADCRATE) (0x04E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

ADC Settling Time (R_ADCACQ) (0x050) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

SPI Configuration (R_SPICF) (0x052) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

Timeouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

Communications Timeout (COM_TIMO) (0x056) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

Energy Accumulation Timeout (ACC_TIMO) (0x058) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

Phase-Angle Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

Phase Offset Current Threshold 1 (I1THR) (0x05C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

Phase Offset Current Threshold 2 (I2THR) (0x05E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

TABLE OF CONTENTS (continued)

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