Datasheet

5
LTC7543/LTC8143
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DECODER
BIT 1
(MSB)
BIT 2 BIT 3 BIT 4 BIT 12
(LSB)
CLR
CLK
OUT
SRO
LTC8143 ONLY
IN
LOAD
DGND
V
DD
V
REF
R
FB
OUT 1
OUT 2
SRI
7
AGND
3
2
1
16
7543/8143 BD
DAC REGISTER
INPUT 12-BIT SHIFT REGISTER
9
8
10
12
11
4
6
5
13
14
15
STB1
STB2
STB3
STB4
LD1
CLR
LD2
BLOCK DIAGRAM
W
TI I G DIAGRA
UW W
SRI
SRO
(LTC8143 ONLY)
LD1, LD2
PREVIOUS
WORD
BIT 1
MSB
BIT 1 (MSB)
PREVIOUS WORD
BIT 1 (MSB)
CURRENT WORD
BIT 2
BIT 2 BIT 3
BIT 11
7543/8143 TD01
BIT 12
LSB
BIT 12
LSB
t
DS1
t
DS2
t
DS3
t
DS4
t
DH1
t
DH2
t
DH3
t
DH4
t
PD
t
PD1
t
STB1
t
STB2
t
STB3
t
STB4
t
SRI
t
ASB
t
STB1
t
STB2
t
STB3
t
STB4
t
LD1
t
LD2

STROBE INPUT
STB1, STB2, STB4
(INVERT FOR STB3)