71m6511h-igtr Maxim Integrated Products, Inc., 71m6511h-igtr Datasheet - Page 14

• Manufacturer Part Number: 71m6511h-igtr
• Description: Single-phase Energy Meter Ic
• Manufacturer: Maxim Integrated Products, Inc.

71M6511/71M6511H
Single-Phase Energy Meter IC
DATA SHEET
AUGUST 2007
Figure 5 shows the accumulation interval resulting from MUX_DIV = 1, PRE_SAMPS = 42 and SUM_CYCLES = 50, consisting
of 2100 samples of 397µs each, followed by the XFER_BUSY interrupt. The sampling in this example is applied to a 50Hz
signal.
There is no correlation between the line signal frequency and the choice of PRE_SAMPS or SUM_CYCLES (even though
when SUM_CYCLES = 42 one set of SUM_CYCLES happens to sample a period of 16.6ms). Furthermore, sampling does not
have to start when the line voltage crosses the zero line.
Page: 14 of 95
© 2005-2007 TERIDIAN Semiconductor Corporation
V2.6