MCP3909RD-1PH1 Microchip Technology, MCP3909RD-1PH1 Datasheet - Page 40

• Manufacturer Part Number: MCP3909RD-1PH1
• Description: BOARD DES MCP3909 ENERGY METER
• Manufacturer: Microchip Technology

Specifications of MCP3909RD-1PH1

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP3909, PIC18F85J90
• Primary Attributes: Single Phase Shunt Energy Meter
• Secondary Attributes: 16 Bit ADC
• Ic Function: Single Phase Energy Measurement IC
• Supply Voltage Range: 4.5V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: SSOP
• No. Of Pins: 24
• Interface Type: SPI
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MCP3909/PIC18F85J90 Single Phase Energy Meter Reference Design
5.3.4
FIGURE 5-4:
DS51884A-page 40
Configuration C2 Flow Chart - Phase Delay
Configuration C2 Flow Chart. - Phase Delay.
Put meter in Calibration
PHA_W_RAW register
Enable Calibration Mode
CAL_CONTROL reg to 1
Set MODE1 register bits
PHA_DELAY calibration
and LINE_CYC register
register contents based
by setting bit 0 and 1 of
(V
STAND_W_RAW
Read contents of
Configuration C2
Read contents of
B
Calculate & Write
on equations in
and I
Section 5.3.5
CAL_MODE
End This
bit 1 low?
register
Phase
B
Is
at PF=0.5)
YES
NO
© 2009 Microchip Technology Inc.