Datasheet

STA559BW Register description
Doc ID 18190 Rev 1 41/67
6.2.1 Mute/line output configuration register (addr 0x06)
Line output is only active when OCFG = 00. In this case LOC determines the line output
configuration. The source of the line output is always the channel 1 and 2 inputs.
6.2.2 Master volume register (addr 0x07)
6.2.3 Channel 1 volume (addr 0x08)
6.2.4 Channel 2 volume (addr 0x09)
D7 D6 D5 D4 D3 D2 D1 D0
LOC1 LOC0 Reserved Reserved C3M C2M C1M Reserved
00000000
Table 50. Line output configuration
LOC[1:0] Line output configuration
00 Line output fixed - no volume, no EQ
01 Line output variable - channel 3 volume effects line output, no EQ
10 Line output variable with EQ - channel 3 volume effects line output
D7 D6 D5 D4 D3 D2 D1 D0
MVOL7 MVOL6 MVOL5 MVOL4 MVOL3 MVOL2 MVOL1 MVOL0
11111111
Table 51. Master volume offset as a function of MVOL
MVOL[7:0] Volume offset from channel value
00000000 (0x00) 0 dB
00000001 (0x01) -0.5 dB
00000010 (0x02) -1 dB
……
01001100 (0x4C) -38 dB
……
11111110 (0xFE) -127.5 dB
11111111 (0xFF) Default mute, not to be used during operation
D7 D6 D5 D4 D3 D2 D1 D0
C1VOL7 C1VOL6 C1VOL5 C1VOL4 C1VOL3 C1VOL2 C1VOL1 C1VOL0
01100000
D7 D6 D5 D4 D3 D2 D1 D0
C2VOL7 C2VOL6 C2VOL5 C2VOL4 C2VOL3 C2VOL2 C2VOL1 C2VOL0
01100000