W681512
10.5.3. PCM Codes for Zero and Full Scale
A-Law
μ-Law
Level
Sign bit
Chord bits
Step bits
Sign bit
Chord bits
(D6,D5,D4)
010
Step bits
(D3,D2,D1,D0)
1010
(D7)
(D6,D5,D4) (D3,D2,D1,D0)
(D7)
+ Full Scale
+ Zero
1
1
0
0
000
111
111
000
0000
1111
1111
0000
1
1
0
0
101
0101
- Zero
101
0101
- Full Scale
010
1010
10.5.4. PCM Codes for 0dBm0 Output
A-Law
Chord bits
(D6,D5,D4)
011
μ-Law
Sample
Sign bit Chord bits
Step bits
Sign bit
Step bits
(D3,D2,D1,D0)
0100
(D7)
0
(D6,D5,D4) (D3,D2,D1,D0)
(D7)
0
1
2
3
4
5
6
7
8
001
000
000
001
001
000
000
001
1110
1011
1011
1110
1110
1011
1011
1110
0
0
010
0001
0
0
010
0001
0
0
011
0100
1
1
011
0100
1
1
010
0001
1
1
010
0001
1
1
011
0100
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