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TPL0401A-10 Fiches technique(PDF) 11 Page - Texas Instruments

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No de pièce TPL0401A-10
Description  128 TAPS Single Channel Digital Potentiometer with I2C Interface
Download  22 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPL0401A-10 Fiches technique(HTML) 11 Page - Texas Instruments

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DDR3 DIMM1
1.5 V
VREF1
_
+
1 kW
DPOT
TPL0401A/B
OP-AMP
LMV321
1 kW
TPL0401A
TPL0401B
TPL0401C
www.ti.com
SLIS144A – SEPTEMBER 2011 – REVISED MARCH 2012
TYPICAL APPLICATION
Figure 15. DDR3 Voltage Reference Adjustment
Below table shows Ideal values of resistance for a 10k
Ω DPOT. The absolute values can vary significantly, but
the ratio (Rhw/Rwl) is extremely accurate.
Table 1. Resistance Values Table
Step
Binary
Rwl (k
Ω)
Rhw (k
Ω)
Rhw/Rwl
0
0
0.00
10.00
0.00
1
1
0.08
9.92
0.01
2
10
0.16
9.84
0.02
3
11
0.23
9.77
0.02
4
100
0.31
9.69
0.03
5
101
0.39
9.61
0.04
6
110
0.47
9.53
0.05
7
111
0.55
9.45
0.06
8
1000
0.63
9.38
0.07
9
1001
0.70
9.30
0.08
10
1010
0.78
9.22
0.08
11
1011
0.86
9.14
0.09
12
1100
0.94
9.06
0.10
13
1101
1.02
8.98
0.11
14
1110
1.09
8.91
0.12
15
1111
1.17
8.83
0.13
16
10000
1.25
8.75
0.14
17
10001
1.33
8.67
0.15
18
10010
1.41
8.59
0.16
19
10011
1.48
8.52
0.17
20
10100
1.56
8.44
0.19
21
10101
1.64
8.36
0.20
22
10110
1.72
8.28
0.21
23
10111
1.80
8.20
0.22
24
11000
1.88
8.13
0.23
25
11001
1.95
8.05
0.24
26
11010
2.03
7.97
0.25
27
11011
2.11
7.89
0.27
28
11100
2.19
7.81
0.28
29
11101
2.27
7.73
0.29
30
11110
2.34
7.66
0.31
31
11111
2.42
7.58
0.32
Copyright © 2011–2012, Texas Instruments Incorporated
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Product Folder Link(s): TPL0401A TPL0401B TPL0401C


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