Datasheet

MAX9860
16-Bit Mono Audio Voice Codec
26
Maxim Integrated
Digital Level Control
The MAX9860 includes digital gain adjustment for the
playback and record paths. Independent gain
adjustment is provided for the two record channels.
Sidetone gain adjustment is also provided to set the
sidetone level relative to the playback level.
Table 8. Digital Level Control Registers
REGISTER ADDRESS B7 B6 B5 B4 B3 B2 B1 B0
0x09 DVA
0x0A ADCRL ADCLL
0x0B 0 DVG DVST
BITS FUNCTION
DAC Level Adjust
Adjusts the digital audio level before being converted by the DAC. The least significant bit of DVA is
always 0.
CODE GAIN CODE GAIN CODE GAIN
0x00 +3 0x40 -29 0x80 -61
0x02 +2 0x42 -30 0x82 -62
0x04 +1 0x44 -31 0x84 -63
0x06 0 0x46 -32 0x86 -64
0x08 -1 0x48 -33 0x88 -65
0x0A -2 0x4A -34 0x8A -66
0x0C -3 0x4C -35 0x8C -67
0x0E -4 0x4E -36 0x8E -68
0x10 -5 0x50 -37 0x90 -69
0x12 -6 0x52 -38 0x92 -70
0x14 -7 0x54 -39 0x94 -71
0x16 -8 0x56 -40 0x96 -72
0x18 -9 0x58 -41 0x98 -73
0x1A -10 0x5A -42 0x9A -74
0x1C -11 0x5C -43 0x9C -75
0x1E -12 0x5E -44 0x9E -76
0x20 -13 0x60 -45 0xA0 -77
0x22 -14 0x62 -46 0xA2 -78
0x24 -15 0x64 -47 0xA4 -79
0x26 -16 0x66 -48 0xA6 -80
0x28 -17 0x68 -49 0xA8 -81
0x2A -18 0x6A -50 0xAA -82
0x2C -19 0x6C -51 0xAC -83
0x2E -20 0x6E -52 0xAE -84
0x30 -21 0x70 -53 0xB0 -85
0x32 -22 0x72 -54 0xB2 -86
0x34 -23 0x74 -55 0xB4 -87
0x36 -24 0x76 -56 0xB6 -88
0x38 -25 0x78 -57 0xB8 -89
0x3A -26 0x7A -58 0xBA -90
0x3C -27 0x7C -59 ≥ 0xBC MUTE
DVA
0x3E -28 0x7E -60 — —