Datasheet

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PCM1774

SLAS551 – JULY 2007

B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0

IDX[6:0]: 101 1111b (5Fh): Register 95

3DEN: 3-D Sound Effect Enable

Default value: 0

This bit is used for enabling the 3-D sound effect filter. This filter has two independently controlled parameters.

3DEN = 0 Disable (default)

3DEN = 1 Enable

3FL0: Filter Selection for 3-D Sound

Default value: 0

This bit is used for selecting from two types of filter, narrow and wide. These filters have a different 3-D

performance effect.

3FL0 = 0 Narrow (default)

3FL0 = 1 Wide

3DP[3:0]: Efficiency for 3-D Sound Effects

Default value: 0000

These bits are used for adjusting the 3-D sound efficiency. Higher percentages have greater efficiency.

3DP[3:0] 3D Sound Effect Efficiency

0 0 0 0 0% (default)

0 0 0 1 10%

0 0 1 0 20%

0 0 1 1 30%

0 1 0 0 40%

0 1 0 1 50%

0 1 1 0 60%

0 1 1 1 70%

1 0 0 0 80%

1 0 0 1 90%

1 0 1 0 100%

1 0 1 1 Reserved

: :

1 1 1 1 Reserved

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