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参数资料
| 型号： | LX1670CD-TR |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, PDSO14 |
| 封装： | LEAD FREE, PLASTIC, SOIC-14 |
| 文件页数： | 5/7页 |
| 文件大小： | 222K |
| 代理商： | LX1670CD-TR |
5-B IT P ROGRAMMABLE V O L TAGE R EFERENCE
LX1670
PRODUCT DA T ABOOK 1996/1997
5
Copyright 1997
Rev. 1.0a
P RODUCTION D AT A S HEET
BLOCK DIAGRAM
VIDO
1
V
SENSE
2
P
GOOD
3
OV
OUT
4
ENABLE
5
BLKEN
6
GND
7
D0
8
D1
9
D2
10
D3
11
D4
12
D4B
13
V
CC
14
Output reference voltage used by PWM controller to set system voltage.
Connected directly to system output voltage.
Open collector output pulls low when the processor's supply is not good.
SCR Driver goes high when processor supply is over voltage.
TTL compatible chip enable. Internally pulled high.
Enables or disables blocking of codes with voltage blow 1.8V for CPU protection. Internally pulled high.
Analog ground return.
LSB DAC logic control. Internally pulled high.
2nd LSB DAC logic control. Internally pulled high.
3rd LSB DAC logic control. Internally pulled high.
MSB DAC logic control. Internally pulled high.
Scales VIDO output when low. Internally pulled high.
Inverting output of D4.
Analog power supply.
Pin Name
Pin #
Description
FUNCTIONAL PIN DESCRIPTION
4.67/4.47V
10.6/10.1V
14
6
5
V
CC
BLKEN
4
V
CC
0.87 * VS
0.935 * VS
0.93 * VE
3
2
ENABLE
OV
OUT
P
GOOD
V
SENSE
1
VIDO
VS
VE
2V REF
2X1
MUX
OUT
S
10
12
13
7
11
10
GND
D4B
D4
D3
D2
9
D1
8
D0
DAC
BLOCK
< 1.8V
O
B
SO
LETE
PRO
D
UCT
NOT
RECOMMENDED
FOR
NEW
DESIGNS
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