CXD2720Q-2 datasheet(26/47 Pages) SONY

Part #	CXD2720Q-2

Description	Single-Chip Dolby Pro Logic Surround Decoder

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Manufacturer	SONY [Sony Corporation]

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CXD2720Q-2

8. Coefficient RAM Setting

When the coefficient RAM is selected in microcomputer interface transmission mode, the coefficient

parameters such as each section's volumes and microphone echo delay amount can be set. Data settings

other than those given following in Tables 8-1 and 8-2 are “don't care”.

(1) Fixed Values for System Initialization

When the system is initialized, the coefficient RAM must be set at the fixed values, shown below, for internal

operation.

Address

01H

02H

03H

19H

1AH

1BH

1CH

20H

21H

23H

24H

25H

26H

27H

28H

2DH

31H

32H

33H

34H

35H

68A9H

5121H

6A30H

5460H

0000H

4000H

0010H

4000H

1600H

2A00H

3FF8H

8000H

0000H

0008H

4000H

1600H

2A00H

3FF8H

8000H

623EH

447CH

36H

3BH

43H

46H

48H

50H

72H

73H

74H

75H

76H

77H

78H

79H

7AH

7BH

7CH

7DH

7EH

7FH

0000H

0008H

0000H

0001H

0008H

0092H

0209H

02CDH

0109H

FDA0H

FD19H

0189H

058AH

016DH

F7BEH

F72AH

0A4EH

2706H

34EEH

Fixed value

fs = 44.1kHz

fs = 48kHz

fs = 32kHz

Table 8-1.

Address

Fixed value

fs = 44.1kHz

fs = 48kHz

fs = 32kHz

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CXD2720Q-2 Datasheet(PDF) 26 Page - Sony Corporation

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