ML145502, ML145503, ML145505

LANSDALE Semiconductor, Inc.

Table 4. A–Law Encode–Decode Characteristics

Chord

Number

Step

Decision

Decode

Number

of Steps

Size

Levels

Sign

Chord

Chord

Chord

Step

Step

Step

Step

Levels

Normalized

Encode

Normalized

12

3

4

5

6

7

8

Digital Code

4096

1

0

1

0

1

0

1

0

4032

3968

7

16

128

2176

10

1

0

0

1

0

1

2112

2048

6

16

64

1088

1

0

1

1

0

1

0

1

1056

1024

5

16

32

544

1

0

0

0

0

1

0

1

528

512

4

16

16

272

1

0

0

1

0

1

0

1

264

256

3

16

8

136

1

1

1

0

0

1

0

1

132

128

216

4

68

11

1

1

0

1

0

1

66

64

132

2

2

11

0

1

0

1

0

1

1

0

NOTES:

1. Characteristics are symmetrical about analog zero with sign bit = 0 for negative analog values.

2. Digital code includes alternate bit inversion, as specified by CCITT.

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Issue A