Datasheet

MAX9867

Ultra-Low Power Stereo Audio Codec

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BITS FUNCTION

LILM/LIRM

Line-Input Left/Right Playback Mute

0 = Line input is connected to the headphone amplifiers.

1 = Line input is disconnected from the headphone amplifiers.

Line-Input Left/Right Gain

SETTING GAIN (dB) SETTING GAIN (dB)

0x0 +24 0x8 +8

0x1 +22 0x9 +6

0x2 +20 0xA +4

0x3 +18 0xB +2

0x4 +16 0xC 0

0x5 +14 0xD -2

0x6 +12 0xE -4

LIGL/LIGR

0x7 +10 0xF -6

LVOLFIX

Fix Line Input Volume

0 = Line input to headphone output volume tracks VOLL and VOLR bits.

1 = Line input to headphone output volume fixed at VOLL and VOLR bits.

See the Digital Audio Interface section.

Table 10. Line Input Registers (continued)

Playback Volume

The MAX9867 incorporates volume and mute control to

allow level control for the playback audio path. Program

registers 0x10 and 0x11 to set the desired volume. See

Table 11.

Table 11. Playback Volume Registers

ADDRESS

Left Volume Control 0 VOLLM VOLL 0x10

Right Volume Control 0 VOLRM VOLR 0x11