Datasheet

LM49350, LM49350RLEVAL
www.ti.com SNAS359D –SEPTEMBER 2008–REVISED JUNE 2012
Table 77. DAC_3D (0xAAh)
Bits Field Description
0 EFFECT_MODE This sets the digital 3D stereo enhancement mode.
EFFECT_MODE Type
0 Loudspeaker
1 Headphone
2:1 EFFECT_LEVEL This sets the applied level of 3D effect.
EFFECT_LEVEL Level
00 25%
01 37.50%
10 50%
11 75%
6:3 FILTER_TYPE This sets the 3D effect filter response.
FILTER_TYPE Response
0000 200Hz HPF
0001 300Hz HPF
0010 600Hz HPF
0011 900Hz HPF
0100 200Hz-500Hz BPF
0101 200Hz-1kHz BPF
0110 200Hz-1.6kHz BPF
0111 200Hz-2.5kHz BPF
1000 300Hz-1kHz BPF
1001 300Hz-1.6kHz BPF
1010 300Hz-2.5kHz BPF
1011 600Hz-1kHz BPF
1100 600Hz-1.6kHz BPF
1101 600Hz-2.5kHz BPF
1110 900Hz-1.6kHz BPF
1111 900Hz-2.5kHz BPF
7 ATTENUATE If set, the inputs are reduced by 6dB before 3D effects are applied in order to avoid
clipping.
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