Si3220/25
Table 43. A-Law Encode-Decode Characteristics1,2
Segment
Number
#intervals X interval size Value at segment endpoints Digital Code
Decode Level
7
16 X 128
4096
3968
.
10101010b
10100101b
4032
.
2176
2048
2112
1056
528
264
132
66
6
16 X 64
16 X 32
16 X 16
16 X 8
16 X 4
32 X 2
.
.
.
1088
1024
10110101b
10000101b
10010101b
11100101b
11110101b
11010101b
5
.
.
.
544
512
4
.
.
.
272
256
3
.
.
.
136
128
2
.
.
.
68
64
1
.
.
.
2
0
1
Notes:
1. Characteristics are symmetrical about analog zero with sign bit = 0 for negative values.
2. Digital code includes inversion of even-numbered bits. Other available formats include inversion of odd bits, inversion
of all bits, or no bit inversion. See "3.30. PCM Companding" on page 79 for more details.
82
Rev. 1.2
SILICON [ SILICON ]
