Datasheet

7
LTC1654
1654fb
TI I G DIAGRA S
UW
W
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
C2 C1 C0 A3 A2 A1 A0C3
CS/LD
SCK
SDI
CONTROL BITS ADDRESS BITS DATA WORD
24-BIT DATA STREAM
1654TD02a
B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 X X
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24 25 26 27 28 29 30 31 32
C2 C1 C0 A3 A2 A1 A0 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
XXC3XXXXXXXX
CS/LD
SCK
SDI
CONTROL BITS ADDRESS BITS DATA WORD
32-BIT DATA STREAM
DON’T CARE
C2 C1 C0 A3 A2 A1 A0 XXC3XXXXXXXX
SDO
CURRENT
STREAM
1654 TD02b
PREVIOUS STREAM
t
2
t
3
t
4
t
1
t
8
B13
17
SCK
SDI
SDO
PREVIOUS B12PREVIOUS B13
18
B12
Figure 1a. 24-Bit Load Sequence (for Non-Daisy-Chained Applications)
Figure 1b. 32-Bit Load Sequence (for Single and Daisy-Chained LTC1654s)