Datasheet

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

ADDRESS

Left-Line Input Level 0 LILM 0 0 LIGL 0x0E

Right-Line Input Level 0 LIRM 0 0 LIGR 0x0F