MCP3909RD-3PH3 Microchip Technology, MCP3909RD-3PH3 Datasheet - Page 47

• Manufacturer Part Number: MCP3909RD-3PH3
• Description: REF DESIGN FOR MCP3909 W/18F2520
• Manufacturer: Microchip Technology

Specifications of MCP3909RD-3PH3

• Main Purpose: Power Management, Energy/Power Meter
• Utilized Ic / Part: MCP3909, PIC18F2520, PIC18F4550
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

5.3.2
FIGURE 5-3:
© 2008 Microchip Technology Inc.
Enable Calibration Mode
CAL_CONTROL register
PHy_VA_GLSB contents
Put meter in Calibration
by setting bit 0 and 1 of
Configuration C1 (VB
Set MODE1 register
ENERGY_W_RAW,
PHy_W_GLSB, and
bits and LINE_CYC
based equations in
CFNUM, CFDEN,
Calculate & Write
Read contents of
and IB at PF=1)
PHy_W_RAW
Section 5.3.3
CAL_MODE
Main Flow Chart for Calibration
bit 1 low
register
to 1
Is
?
YES
Main Calibration Flow Chart.
NO
YES
Power Offset
This Phase
Proceed to
Flow For
Active
YES
Begin Calibration
for This Phase
Is this Phase
compensation
being set as
Is this Phase
the standard
Phase delay
matched to
being gain
standard
Calibrate
Calibrate
phase?
phase?
Offset?
Power
Active
?
NO
NO
NO
YES
NO
Proceed to
YES
RMS Flow
For This
Proceed to Gain Matching
Phase
Phase Delay Flow For This
Error, must Cal CF with
Proceed to Active Power
YES
Standard Phase
Meter Calibration
YES
phase been
NO
calibrated
Calibrate
standard
Phase
for CF
RMS?
Has a
adjust
Flow
?
DS51643B-page 43
End This
Phase
NO