lx1670 Microsemi Corporation, lx1670 Datasheet - Page 4

• Manufacturer Part Number: lx1670
• Description: 5 - Bit Programmable Votage Reference
• Manufacturer: Microsemi Corporation

LX1670
4
1.0 < V
D4
D4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
V
V
V
V
V
V
V
V
V
D4
CC
CC
CC
CC
CC
CC
CC
CC
CC
V
X
0
1
0
1
CC
> UVLOT
> UVLOT
> UVLOT
> UVLOT
> UVLOT
> UVLOT
> UVLOT
> UVLOT
> UVLOT
CC
V
< 1.0
CC
< UVLOT
D3
D3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
ENABLE
0
1
1
1
1
D2
D2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
VIDO Table
VIDO Table
VIDO Table
VIDO Table
VIDO Table
VIDO Table
VIDO Table
VIDO Table
D4-D0
X
X
X
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
Table 2 - VIDO Output (BLKEN pulled high or left open)
D1
D1
5 - B
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
ENABLE
BLKEN
I T
Table 3 - VIDO Output (BLKEN pulled low)
P
X
X
0
1
1
1
1
1
1
1
1
X
0
0
1
1
D0
D0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
R O D U C T I O N
P
Table 1 - Input vs. Output Functions
R O G R A M M A B L E
BLKEN
F U N C T I O N T A B L E S
Table 4 - Mode Control
X
X
X
0
0
0
0
1
1
1
1
VIDO
VIDO
1.800
1.850
1.900
1.950
2.000
2.050
1.300
1.350
1.400
1.450
1.500
1.550
1.600
1.650
1.700
1.750
1.800
1.850
1.900
1.950
2.000
2.050
0
0
0
0
0
0
0
0
0
0
Normal
Normal
Disable
Mode
Low
Low
0.93V
1.07V
0.93V
1.07V
V
V
V
V
D
V
V
S
O
O
S
S
O
O
S
SENSE
< 0.93V
> 1.15V
< 0.93V
> 1.15V
< V
< V
< V
< V
A T A
O L T A G E
X
X
X
D4
D4
S
S
S
S
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
(V
< 1.07V
< 1.15V
< 1.07V
< 1.15V
VIDO is pulled low through 10k
VIDO is scaled. Output 1.3V to 2.05V
Normal Output 2.0 to 3.5V
VIDO is scaled. Output 1.8V to 2.05V
Normal output 2.0 to 3.5V
S
)
O
O
O
O
S
O
O
O
O
D3
D3
R
H E E T
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
E F E R E N C E
VIDO Table 3
VIDO Table 3
VIDO Table 3
VIDO Table 3
VIDO Table 2
VIDO Table 2
VIDO Table 2
VIDO Table 2
VIDO (V
Undefined
LOW
LOW
D2
D2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
O
)
State
D1
D1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
Undefined
P
HIGH
HIGH
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
GOOD
D0
D0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Undefined
OV
VIDO
VIDO
HIGH
HIGH
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
2.00
2.10
2.20
2.30
2.40
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.30
3.40
3.50
2.00
2.10
2.20
2.30
2.40
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.30
3.40
3.50
Copyright © 1997
OUT
Rev. 1.0
7/97