Datasheet

AD7887
Rev. D | Page 15 of 24
SCLK
CS
DOUT
DIN
1
16
CONTROL REGISTER DATA IS LOADED ON THE FIRST EIGHT CLOCKS.
PM1 AND PM0 = 0 TO KEEP THE PART IN THIS MODE
FOUR LEADING ZEROS + CONVERSION RESULT
DATA IN
THE PART POWERS UP ON CS
FALLING EDGE AS PM1 AND PM0 = 0
THE PART POWERS DOWN ON CS
RISING EDGE AS PM1 AND PM0 = 0
0
6191-016
Figure 16. Mode 1 Operation
SCLK
CS
DOUT
DIN
THE PART REMAINS POWERED UP
AT ALL TIMES AS
PM1 = 0 AND PM0 = 1
1
16
CONTROL REGISTER DATA IS LOADED ON THE FIRST EIGHT CLOCKS.
PM1 = 0 AND PM0 = 1 TO KEEP THE PART IN THIS MODE
FOUR LEADING ZEROS + CONVERSION RESULT
DATA IN
0
6191-017
Figure 17. Mode 2 Operation