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參數(shù)資料
| 型號： | ES52110 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8-bit D/A Converter |
| 中文描述： | 8位D / A轉(zhuǎn)換器 |
| 文件頁數(shù)： | 2/15頁 |
| 文件大小： | 203K |
| 代理商： | ES52110 |
ITRI
ERSO
ES52110
8-bit D/A Converter
19999/12/27 01:37 PM
2
PIN Assignment
AGND
1
20 OUT B
OUT A
2
19 R
FB
B
R
FB
A
3
18 V
REF
B
V
REF
A
4
17 V
DD
DGND
5
16 WR
DACA/DACB
6
ES52099
(YOP VOEW)
15 CS
(MSB)DB7
7
14 DB0(LSB)
DB6
8
13 DB 1
DB5
9
12 DR2
DB4 10
11 DB3
Pin Description
Pin NUMBER.
1
NAME
AGND
TYPE
DESCRIPTION
The currcnt from the digital input are
switched between the DAC OUTPUT and
AGND thus maintaining fixed currcnt in
cach ladder leg. Independent of switch statc.
Analog data is restored from D/A conveter
which the digital data is transferred ino ether
of the two DAC.
2
OUT A
OUT B
O
O
20
3
19
R
FB
A
R
FB
A
Internal feedback resistor
4
18
V
REF
A
R
REF
B
The refercnce voltage for the R-2R ladder
structure DAC.
5
6
DGND
DAC A/D ACB
I
Both DAC latchcs sharc a common s-bit
input port. The control input DAC A/D ACB
selects which DAC can accept data from the
input port.
Data bus is TTL./CMOS com -patible. Data
is transferred into the either of two latches of
DAC. DB0 is the least significant bit
Input CS and WR control the operating
mode of the selectod DAC. When CS and
WR are both ow. The sclected DAC is in the
Write mode. The input dath latches of the
sclectod DAC are transparcnt and its analog
output responds to activity on DB0-DB7
Power
7-14
DB7-DB0
I
15
CS
I
17
VDD
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