TLC320AD90 Datasheet, PDF (27/51 Pages) Texas Instruments – Stereo Audio Codec

Table 2–9. Right Record Select Control Register Definitions
SR2 – SR0 RIGHT RECORD SOURCE
000
MIC_IN
001
CD_R
010
VIDEO_R
011
AUX_R
100
LINE_IN_R
101
Stereo Mix (R)
110
Mono Mix (R)
111
PHONE
Table 2–10. Left Record Select Control Register Definitions
SL2 – SL0
000
001
010
011
100
101
110
111
LEFT RECORD SOURCE
MIC_IN
CD_L
VIDEO_IN_L
AUX_L
LINE_IN_L
Stereo Mix (L)
Mono Mix (L)
PHONE
2.3.6 Record Gain Register (Index 1Ch)
The Record Gain register is for the stereo input. Each step corresponds to 1.5 dB with 22.5 dB corresponding
to 0F0Fh. The MSB of the register is the mute bit. When this bit is set to 1, the level for that channel is set
to maximum attenuation.
The default value of this register is 8000h which represents 0-dB gain with mute on. The Record Gain
register definitions are listed in Tables 2–11.
Table 2–11. Record Gain Register Definitions
MUTE Gx3 – Gx0
FUNCTION
1111 22.5-dB Gain
0
...
...
0000 0-dB Gain
1
xxxx Maximum attenuation (mute)
2–13