MC145481 查看數據表（PDF） - Motorola => Freescale
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MC145481 Datasheet PDF : 23 Pages
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Level
+ Full Scale
+ Zero
– Zero
– Full Scale
Phase
π/8
3π/8
5π/8
7π/8
9π/8
11π/8
13π/8
15π/8
Sign Bit
1
1
0
0
Sign Bit
0
0
0
0
1
1
1
1
Table 1. PCM Codes for Zero and Full Scale
Mu–Law
Chord Bits
Step Bits
Sign Bit
000
0000
1
111
1111
1
111
1111
0
000
0000
0
A–Law
Chord Bits
010
101
101
010
Table 2. PCM Codes for Digital mW
Mu–Law
Chord Bits
Step Bits
Sign Bit
001
1110
0
000
1011
0
000
1011
0
001
1110
0
001
1110
1
000
1011
1
000
1011
1
001
1110
1
A–Law
Chord Bits
011
010
010
011
011
010
010
011
Step Bits
1010
0101
0101
1010
Step Bits
0100
0001
0001
0100
0100
0001
0001
0100
MC145481
6
MOTOROLA
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