ADE7763ARS Analog Devices Inc, ADE7763ARS Datasheet - Page 43

• Manufacturer Part Number: ADE7763ARS
• Description: IC ENERGY METER 1PHASE 20SSOP
• Manufacturer: Analog Devices Inc

Specifications of ADE7763ARS

• Input Impedance: 390 KOhm
• Measurement Error: 0.1%
• Voltage - I/o High: 2.4V
• Voltage - I/o Low: 0.8V
• Current - Supply: 3mA
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP (0.200", 5.30mm Width)
• Meter Type: Single Phase
• For Use With: EVAL-ADE7763ZEB - BOARD EVALUATION FOR ADE7763
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

CLKIN FREQUENCY
In th
when CLKIN frequency equals 3.579545 MHz. However, the
ADE7763 is designed to have the same accuracy at any CLKIN
frequency within the specified range. If the CLKIN frequen
not 3.57954
need to be redefined with the new CLKIN frequency. For
example, the cutoff frequencies of all digital filters, such as
LPF1, LPF2, or HPF1, shift in proportion to the change in
CLKIN fr
The change in CLKIN frequency does not affect the timing
characteristics of the serial interface because the data transfer is
is data sheet, the characteristics of the
New
equency according to the following equation:
5 MHz, various timing and filter characteristics will
Frequency
=
Original
Frequency
SET HALF LINE CYCLES FOR ACCUMULATION
WRITE CFDEN VALUE TO CFDEN REGISTER
CALCULATE VAGAIN. SEE EQUATION 65.
CALCULATE CFDEN VALUE FOR DESIGN
CALCULATE WGAIN. SEE EQUATION 43.
ENABLE LINE CYCLE ACCUMULATION
ACCUMULATION ADDR. 0x09 = 0x0080
READ LINE A
SET I
IN LINECYC REGISTER ADDR. 0x1C
APPARENT ENERGY: ADDR. 0x07
RESET THE INTERRUPT STATUS
RESET THE INTERRUPT STA
INTERRUPT ADDR. 0x0A = 0x04
READ REGISTER ADDR. = 0x0C
READ REGIS
ACTIVE ENERGY: ADDR. 0x04
SET MODE FOR LINE CYCLE
TEST
×
ADDR. 0x15 = CFDEN
ADE7763 are sh
CLKIN
= I
. 3
INTERRUPT?
INTERRUPT?
CCUMULATION ENERGY
YES
YES
b
579545
, V
TER ADDR. = 0x0C
TEST
Figure 78. Active/Apparent
Frequency
= V
MHz
NOM
, PF = 1
NO
NO
own
cy is
TUS
Rev. A | Page 43 of 56
(69)
WRITE WGAIN VALUE TO ADDR. 0x12
WRITE VGAIN VALUE TO ADDR. 0x1A
Gain Calibration
synchronized with the serial clock signal (SCLK). How
important to observe th
tran
various timing changes that are affected by CLKIN frequenc
Table 8. Frequency Dependencies of the ADE7763 Parameters
Parameter
Nyquist Frequency for CH 1, CH 2 ADCs
PHCAL Resolution (seconds per LSB)
Active Energy Register Update Rate (Hz)
Waveform Sampling Rate (per second)
WAVSEL 1,0 = 0 0
Maximum ZXTOUT Period
sfer—see the timing characteristics in Tab
0 1
1 0
1 1
e read/write timing of the serial data
CLKIN Dependency
CLKIN/8
4/CLKIN
CLKIN/4
CLKIN/128
CLKIN/256
CLKIN/512
CLKIN/1024
524,288/CLKIN
le 2. Table 8 li
ADE7763
ever, it is
sts
y.