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DS1806-10 Datasheet

  • DS1806-10

  • IC-DIGITAL POT

  • 61.23KB

  • 8頁

  • ETC

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DS1806
DS1806
Digital Sextet Potentiometer
FEATURES
PIN ASSIGNMENT
W1
W2
L1-3
W3
W4
L4-6
W6
RST
CLK
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
H1
H2
H3
H4
H5
W5
H6
D
IN
C
OUT
鈥?/div>
Six digitally controlled 64鈥損osition potentiometers
鈥?/div>
3鈥揥ire Serial Port provides for reading and setting
each potentiometer
鈥?/div>
Devices can be cascaded for single processor multi鈥?/div>
device control
鈥?/div>
Standard Resistance Values
鈥?DS1806鈥?10 鈥?10K ohm
鈥?DS1806鈥?50 鈥?50K ohm
鈥?DS1806鈥?00 鈥?100K ohm
鈥?/div>
Temperature:
鈥?Industrial: 鈥?0擄C to +85擄 C
DS1806 20鈥揚IN DIP (300 MIL)
DS1806S 20鈥揚IN SOIC (300 MIL)
DS1806E 20鈥揚IN TSSOP (173 MIL)
See Mech. Drawings
Section
PIN DESCRIPTION
V
CC
RST
D
IN
CLK
C
OUT
H1 鈥?H6
W1 鈥?W6
GND
L1鈥?
L4鈥?
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
3V or 5V Supply
Serial Port Reset Input
Serial Port Data Input
Serial Port Clock Input
Cascade Data Output
High End Terminal of Pot
Wiper Terminal of Pot
Ground
Low Terminal Pots 1 thru 3
Low Terminal Pots 4 thru 6
DESCRIPTION
The DS1806 is a six鈥揷hannel digitally controlled solid鈥?/div>
state linear potentiometer. Each potentiometer is com-
prised of 63 equiresistive sections as illustrated in the
block diagram of Figure 1. Each potentiometer has
three terminals accessible to the user. These include
the high side terminals, H
X
, the wiper terminals, W
X
, and
the low鈥揺nd terminals, L1鈥? and L4鈥?. Potentiometers
1 through 3 share the same low鈥揺nd terminal L1鈥?. And
likewise, potentiometers 4 through 6 share the low鈥揺nd
terminal L4鈥?.
Each wiper鈥檚 position is selected via an 8鈥揵it register
value. Communication and control of the device is ac-
complished via a 3鈥搘ire serial port interface. This inter-
face in conjunction with a cascade output allows the val-
ue of the device wiper settings to be read.
For multiple device and single processor environments,
the DS1806 can be cascaded or daisy chained. This
feature allows a single processor to control multiple de-
vices.
The DS1806 is available in 10K, 50K and 100K ohm ver-
sions and is specified over the industrial temperature
range. Packages for the device include 20鈥搇ead DIPs,
SOICs, and TSSOPs.
ECopyright
1995 by Dallas Semiconductor Corporation.
All Rights Reserved. For important information regarding
patents and other intellectual property rights, please refer to
Dallas Semiconductor data books.
062097 1/8

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