Datasheet

LM49450
www.ti.com SNAS440D –FEBRUARY 2008–REVISED MAY 2013
Table 14. Headphone 3D Configuration Register (continued)
Bit Name Value Description
B5 B4 Sets 3D high pass filter -3dB (roll-off) frequency
0 0 0
HP_3DFREQ_1 (B5)
B5:B4 0 1 300Hz
HP_3DFREQ_0 (B4)
1 0 600Hz
1 1 900Hz
Sets the 3D mix level, ie the amount of the left channel
B3 B2
signal that appears on the right channel and visa versa.
0 0 25%
HP_3DFREQ_1 (B3)
B3:B2
HP_3DFREQ_0 (B2) 0 1 37.5%
1 0 50%
1 1 75%
0 Narrow 3D effect
B1 HP_3D
1 Wide 3D effect
0 Headphone 3D disabled
B0 HP_3DEN
1 Headphone 3D enabled
LOUDSPEAKER 3D CONFIGURATION REGISTER (0x06h)
Default value is 0x00h.
Table 15. Loudspeaker 3D Configuration Register
Bit Name Value Description
B7 RESERVED X UNUSED
0 No Attenuation
B6 LS_3DATTN
1 Output signals are attenuated by 6dB
B5 B4 Sets 3D high pass filter -3dB (roll-off) frequency
0 0 0
LS_3DFREQ_1 (B5)
B5:B4 0 1 300Hz
LS_3DFREQ_0 (B4)
1 0 600Hz
1 1 900Hz
Sets the 3D mix level, ie the amount of the left channel
B3 B2
signal that appears on the right channel and visa versa.
0 0 25%
LS_3DFREQ_1 (B3)
B3:B2
LS_3DFREQ_0 (B2) 0 1 37.5%
1 0 50%
1 0 75%
0 Narrow 3D effect
B1 HP_3D
1 Wide 3D effect
0 Loudspeaker 3D disabled
B0 HP_3DEN
1 Loudspeaker 3D enabled
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