SA9605A
XTAL is a colour burst TV crystal (f = 3.5795 MHz) for the oscillator. The oscillator
frequency is divided down to 1.78975 MHz on-chip, to supply the digital circuitry and the
A/D converters.
Figure 1: Application Circuit for Three Phase Power/Energy Measurement.
MAINS VOLTAGES
R1
R2
R1A
R2A
LINE 1
LINE 2
R3
R3A
LINE 3
R16
R8
R11
R10
R17
C2
C1
1
2
20
19
R19
R20
R18
VI2P
VI2N
VI1P
VI1N
C3
R9
3
18
17
R15
SA9605A
DIP - 20
IC-1
R13
R12
4
VI3P
VI3N
5
16
R4
R5
P5
6
7
15
14
R14
8
13
12
11
PGM1
PGM0
5V
FOUT1
FOUT2
DIR
9
10
R6
R7
0V
P14
0V
P6
XTAL
R21
0V
C14
0V
C13
C12
0V
DR-01112
10/14
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