Rainbow Electronics MAX9867 - Manual (Page 36)

MAX9867
Ultra-Low Power Stereo Audio Codec
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BITS FUNCTION
DACG
DAC Gain
00 = 0dB
01 = +6dB
10 = +12dB
11 = +18dB
Note: DACG is only used when MODE = 0. If MODE = 1, the DAC level is only set by DACA.
DAC Level Control
DACA works in all modes.
SETTING GAIN (dB) SETTING GAIN (dB)
0x0 0 0x8 -8
0x1 -1 0x9 -9
0x2 -2 0xA -10
0x3 -3 0xB -11
0x4 -4 0xC -12
0x5 -5 0xD -13
0x6 -6 0xE -14
DACA
0x7 -7 0xF -15
ADC Left/Right Level Control
SETTING GAIN (dB) SETTING GAIN (dB)
0x0 +3 0x8 -5
0x1 +2 0x9 -6
0x2 +1 0xA -7
0x3 0 0xB -8
0x4 -1 0xC -9
0x5 -2 0xD -10
0x6 -3 0xE -11
AVL/AVR
0x7 -4 0xF -12
Table 9. Digital Gain Registers (continued)
Line Inputs
The MAX9867 includes one pair of single-ended line
inputs. When enabled, the line inputs connect directly
to the headphone amplifier and can be optionally con-
nected to the ADC for recording. Table 10 lists the line
input registers.
Table 10. Line Input Registers
REGISTER B7 B6 B5 B4 B3 B2 B1 B0
REGISTER
ADDRESS
Left-Line Input Level 0 LILM 0 0 LIGL 0x0E
Right-Line Input Level 0 LIRM 0 0 LIGR 0x0F