MC145506 데이터 시트보기 (PDF) - Motorola => Freescale

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MC145506

PCM Codec-Filter Mono-Circuit

Motorola => Freescale 

Freescale Semiconductor, Inc.

Chord Number Step

Number of Steps Size

8

16

256

Table 3. Mu–Law Encode–Decode Characteristics

Normalized

Encode

Decision

Levels

1

Sign

2

Chord

3

Chord

Digital Code

4

5

Chord Step

6

7

Step Step

8159

7903

1

0

0

0

0

0

0

8

Step

Normalized

Decode

Levels

0

8031

4319

4063

1

0

0

0

1

1

1

1

4191

7

16

128

2143

1

0

0

1

1

1

1

1

2079

2015

6

16

64

1055

1

0

1

0

1

1

1

1

1023

991

5

16

32

511

1

0

1

1

1

1

1

1

495

479

4

16

16

239

1

1

0

0

1

1

1

1

231

223

3

16

8

103

1

1

0

1

1

1

1

1

99

95

2

16

4

35

1

1

1

0

1

1

1

1

33

31

1

15

2

3

1

1

1

1

1

1

1

0

2

1

1

1

1

1

1

1

1

1

1

1

0

0

NOTES:

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

2. Digital code includes inversion of all magnitude bits.

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