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MCP4641 数据表(PDF) 70 Page - Microchip Technology

部件名 MCP4641
功能描述  7/8-Bit Single/Dual I2C Digital POT with Nonvolatile Memory
PDF  102 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

MCP4641 数据表(HTML) 70 Page - Microchip Technology

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MCP454X/456X/464X/466X
DS22107B-page 70
 2008-2013 Microchip Technology Inc.
TABLE 8-1:
LINEAR TO LOG ATTENUATION FOR 8-BIT DIGITAL POTENTIOMETERS
# of
Steps
-3 dB Steps
-2 dB Steps
-1 dB Steps
Desired
Attenuation
Wiper
Code
Calculated
Attenuation
(1)
Desired
Attenuation
Wiper
Code
Calculated
Attenuation
(1)
Desired
Attenuation
Wiper
Code
Calculated
Attenuation
(1)
0
0 dB
256
0 dB
0 dB
256
0 dB
0 dB
256
0 dB
1
-3 dB
181
-3.011 dB
-2 dB
203
-2.015 dB
-1 dB
228
-1.006 dB
2
-6 dB
128
-6.021 dB
-4 dB
162
-3.975 dB
-2 dB
203
-2.015 dB
3-9dB
91
-8.984 dB
-6 dB
128
-6.021 dB
-3 dB
181
-3.011 dB
4
-12 dB
64
-12.041 dB
-8 dB
102
-7.993 dB
-4 dB
162
-3.975 dB
5
-15 dB
46
-14.910 dB
-10 dB
81
-9.995 dB
-5 dB
144
-4.998 dB
6
-18 dB
32
-18.062 dB
-12 dB
64
-12.041 dB
-6 dB
128
-6.021 dB
7
-21 dB
23
-20.930 dB
-14 dB
51
-14.013 dB
-7 dB
114
-7.027 dB
8
-24 dB
16
-24.082 dB
-16 dB
41
-15.909 dB
-8 dB
102
-7.993 dB
9
-27 dB
11
-27.337 dB
-18 dB
32
-18.062 dB
-9 dB
91
-8.984 dB
10
-30 dB
8
-30.103 dB
-20 dB
26
-19.865 dB
-10 dB
81
-9.995 dB
11
-33 dB
6
-32.602 dB
-22 dB
20
-22.144 dB
-11 dB
72
-11.018 dB
12
-36 dB
4
-36.124 dB
-24 dB
16
-24.082 dB
-12 dB
64
-12.041 dB
13
-39 dB
3
-38.622 dB
-26 dB
13
-25.886 dB
-13 dB
57
-13.047 dB
14
-42 dB
2
-42.144 dB
-28 dB
10
-28.165 dB
-14 dB
51
-14.013 dB
15
-48 dB
1
-48.165 dB
-30 dB
8
-30.103 dB
-15 dB
46 - 14.910 dB
16
Mute
0
Mute
-32 dB
6
-32.602 dB
-16 dB
41
-15.909 dB
17
-34 dB
5
-34.185 dB
-17 dB
36
-17.039 dB
18
-36 dB
4
-36.124 dB
-18 dB
32
-18.062 dB
19
-38 dB
3
-38.622 dB
-19 dB
29
-18.917 dB
20
-42 dB
2
-42.144 dB
-20 dB
26
-19.865 dB
21
-48 dB
1
-48.165 dB
-21 dB
23 - 20.930 dB
22
Mute
0
Mute
-22 dB
20
-22.144 dB
23
-23 dB
18
-23.059 dB
24
-24 dB
16
-24.082 dB
25
-25 dB
14
-25.242 dB
26
-26 dB
13
-25.886 dB
27
-27dB
11
-27.337 dB
28
-28 dB
10
-28.165 dB
29
-29 dB
9
-29.080 dB
30
-30 dB
8
-30.103 dB
31
-31 dB
7
-31.263 dB
32
-33 dB
6
-32.602 dB
33
-34 dB
5
-34.185 dB
34
-36 dB
4
-36.124 dB
35
-39 dB
3
-38.622 dB
36
-42 dB
2
-42.144 dB
37
-48 dB
1
-48.165 dB
38
Mute
0
Mute
Note 1:
Attenuation values do not include errors from Digital Potentiometer errors, such as Full Scale Error or Zero
Scale Error.



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