PCM1774 datasheet(39/49 Pages) TI

部品番号	PCM1774

部品情報	16-Bit, Low-Power Stereo Audio DAC With Analog Mixing, Line and Headphone Outputs

PDF	49 Pages

Scroll/Zoom	100%

メーカー	TI [Texas Instruments]

ホームページ	http://www.ti.com

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PCM1774

SLAS551 – JULY 2007

B15

B14

B13

B12

B11

B10

IDX6

IDX5

IDX4

IDX3

IDX2

IDX1

IDX0

RSV

3DEN

RSV

3FL0

3DP3

3DP2

3DP1

3DP0

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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