SA9605A

sames

10/14

Figure 1: Application Circuit for Three Phase Power/Energy Measurement.

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.

VI1P

VI1N

SA9605A

DIP - 20

IC-1

VI3N

6

DR-01112

0V

FOUT2

FOUT1

DIR

C13

P6

C12

0V

R6

10

7

8

9

R3A

R1A

R2A

VI3P

MAINS VOLTAGES

VI2P

VI2N

LINE 3

LINE 1

LINE 2

R20

R19

R3

R1

R2

C3

R13

R12

R11

R10

R17

4

5

1

2

3

15

XTAL

11

14

13

12

0V

P14

R14

PGM1

PGM0

R21

0V

P5

C14

0V

R7

5V

17

16

18

19

20

C2

C1

R16

R8

R9

R15

R5

R4

R18