lm49350rl National Semiconductor Corporation, lm49350rl Datasheet - Page 52

• Manufacturer Part Number: lm49350rl
• Description: High Performance Audio Codec Sub-system With A Ground-referenced Stereo Headphone Amplifier & An Ultra Low Emi Class D Loudspeaker Amplifier With Dual I2s/pcm Digital Audio Interfaces
• Manufacturer: National Semiconductor Corporation

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Bits
Bits
Bits
7:6
1:0
3:2
1:0
3:2
4
5
4
5
INTERP_R_LVL
R_SEL
MONO
R_SEL
MONO
L_SEL
SWAP
L_SEL
SWAP
Field
Field
Field
This programs the input level of the data arriving from the right DAC's interpolator output.
This selects which input is fed to the Left TX Channel of Audio Port 1.
This selects which input is fed to the Right TX Channel of Audio Port 1.
If set, this swaps the Left and Right outputs to Audio Port 1.
If set, the right channel is ignored and the left channel becomes (left+right)/2.
This selects which input is fed to Audio Port 2's Left TX Channel.
This selects which input is fed to Audio Port 2's Right TX Channel.
If set, this swaps the Left and Right outputs to audio port 2.
If set, the right channel is ignored and the left channel becomes (left+right)/2.
TABLE 34. Audio Port 1 Input (0x42h)
TABLE 35. Audio Port 2 Input (0x43h)
INTERP_R_LVL
R_SEL
R_SEL
L_SEL
L_SEL
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
52
Description
Description
Description
DAC_INTERP_R
DAC_INTERP_R
DAC_INTERP_L
DAC_INTERP_L
PORT2_RX_R
PORT1_RX_R
Selected Input
PORT2_RX_L
Selected Input
Selected Input
PORT1_RX_L
Selected Input
ADC_R
ADC_R
ADC_L
ADC_L
–12dB
–18dB
Level
–6dB
None
None
None
None
0dB